User's manual of MTPR-820Hc transformer protection and monitoring device V1.03

Zhuhai Wanlida Electrical Automation Co., Ltd. http://www.zhwld.com User’s manual of MTPR-820Hc transformer protection and monitoring device Prepared by： Zhu Yanan Proofed by： Li Changwen Approved by：Lin Cunli Document No.: WLD [K]-JY-312-2018 Version No.: V1.03.01 Date of publication: June, 2018 Copyright: Zhuhai Wanlida Electrical Automation Co., Ltd. Note: Our Company reserves the right to modify this manual. For any inconsistency between the product and this manual, please contact us for relevant services. Technical support hotline: 0756-3395398 Fax: 0756-3395111 Foreword F o r e w o r d 1. Model description MTPR-820Hc is the microcomputer transformer protection and monitoring device, the structural type of the MTPR-820Hc series protection is Hc. MTPR-820Hc supports A, B, C three-phase current protection, also supports A, C two-phase current protection. When ordering, please specify. 2. Standards referenced General specification for static protection, security and automatic equipment, DL 478-2001 Technical code for relaying protection and security automatic equipment GB/T 14285-2006 Protective relay and automatic equipment design rules of power equipment GB50062-92 Transformer substation correspondence network and system DL/T 860 Intelligent substation technology norms Q／GDW 383 -2009 Intelligent substation relay protection technical specifications Q／GDW_441-2010 IEC61850 engineering application model Q／GDW 396-2010 3. Caution  Negative sequence voltage involved in this device of protection function is combined with phase voltage, all of low voltage component depend on line voltage in compound voltage block, if one of the three line voltages is lower than low voltage setting, low voltage component will operates and unblocks over current protection.  The value of measuring current phase B can be gotten form measuring current phase A and phase C.  There are 4 standard curves of inverse protection involved in this device of protection function, if the fault current is higher than 15 times of the rated current, the inverse protection component will be exported according to the action time of 15 times of rated current.  The appearance should be inspected before power is applied, to ensure that the panel is OK without scratch, the screws are tightened, the device is grounded firmly, all screws of plug-ins are tightened and in good contact.  When power is applied, the “Run” indicator on the panel should flash, protection and measuring data are displayed on the LCD in cycle.  The terminal D25～D28 are measuring circuit of 4～20mA DC signal, when testing, Signal should be supplied by special equipment, the behavior of applying the signal of relay 2 Foreword protection tester directly is prohibited. (Optional)  When the device is equipped with ungrounded system, terminal D07, D08 are zero sequence small current input terminal, the AC current input should be limited within 2A, the measuring current input should be limited within 6A. When testing, pay attention to avoid large signal applied so as to avoid damage to components.  Operating circuit inside the device is only applicable to DC power supply, if AC power is used, it should be applied with rectifier and filter.  It is prohibited to plug or unplug the plug-ins, in order to avoid damage to the device.  It is prohibited to do digital output test when the device is running with primary equipments. 3 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 1. Product description 1.1 Scope of application The MTPR-820Hc line protection and monitoring device applies to the line protection and monitoring in ungrounded systems, systems grounded via an arc suppression coil or resistor with voltage ratings, or grounded system solidly of below 110kV. 1.2 Function and specification 1.2.1 Protective function  3-step compounded voltage block directional over-current protection（Three-step OC）  Inverse time limit overcurrent protection  Negative sequence overcurrent protection  Overload protection  High-voltage side ground protection(HV ZS OC)  Low-voltage side ground protection(UV ZS OC)  Voltage protection (under-voltage protection and over-voltage protection) (Voltage Protect)  Body protection  Non-electric quantity protection（2 ways）（Can be selected or not）  Longitudinal differential protection(Diff.Protect) 1.2.2 Auxiliary function  Harmonic spectrum analysis  Phase display  Fault recorder  Integral energy  Self-checking fault alarm of device  Remote calling and modification of protection’s settings  One way (or two ways) programmable output of 4～20mA  Network print  Virtual correspondent node remote test 1.2.3 Monitoring function  Electric quantity（remote measuring quantity）：voltage, current, active power, reactive power, active energy, reactive energy, power factor, grid frequency, non-electric quantity measuring (optional), etc.  Remote binary quantity: the device has 25-way binary input, in which: 20-way for external gathering, and 5-way for internal gathering. 1.2.4 Communication capability  With industrial Ethernet port and standard RS485 multipoint communication port. Supports MODBUS、IEC-60870-5-103（RS485 communication mode）、IEC-61850-5-104（Industrial 4 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Ethernet communication mode） standard communication protocol and a new generation of substation’s communication standard IEC 61850.  Supports single and dual network communication, it is fully qualified for network redundancy and backup 1.2.5 GPS clock synchronization function  The device is able to receive GPS clock second synchronization or IRIG-B through RS485 differential voltage, and it can be done with monitoring system to accomplish GPS precise clock synchronization or Ethernet-based SNTP synchronization. 1.2.6 Device specifications  32-bit POWERPC microprocessor  Real-time multi-task operating system and C++ program techniques, realizing online programming  320*240 LCD display, easy for inspection  One or two ways 4~20mA DC quantity output, which can be set flexibly as any corresponding electric quantity (such as current, voltage, power, etc.)  Collecting 2 ways of 4~20mA DC quantities for measurement of non-electric quantities, such as temperature, pressure, and realizing online monitoring. (optional)  Having the electric energy quality analysis function and perfect harmonic analysis function  Integrating perfect metering functions and Metrology Function  Support network printing function, include two ways: real-time print and artificial print  Support virtual correspondent node remote test, including remote communication to correspondent node, remote measure to correspondent node, event to correspondent node, can online testing, it is convenient for debugger to debug the device on-site.  Excellent hardware interchangeability, user maintenance is easily and it reduced quantity of spare parts  Protection output relays can be configured flexibly for user convenience  Using a 6U, 19/3” standard enclosure in a rear plug-in structure. the device can be installed in site on a switchboard or combined in a centralized manner 1.2.7 Main technical specifications  Rated data Power supply: DC/AC 86~265V Operating voltage: DC 220V or DC 110V AC voltage: 100/ 3 V or 100V AC current: 5A or 1A Frequency: 50Hz  Power consumption DC circuit: <10W (normal operation). <15W (protection operation) AC voltage circuit: <0.5VA/phase AC current circuit: <1VA/phase (In = 5A). <0.5VA/phase (In = 1A).  Overload capability AC voltage circuit: 1.2Un, continuous operation 5 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Current measuring circuit: 1.2 In, continuous operation Protective current circuit: 2In, continuous operation 10In, allowing 10s 40In, allowing 1s  Range and error of setting value  Maximum range of setting value: Voltage element: 1V~120V Current element: 0.1In~20In Frequency: 45.00Hz~55.00Hz Timing element: 0.00s~100.00s  Error of setting value: Current and voltage setting value: ≤±3% of setting value Frequency setting value: ≤±0.02Hz Angle setting value: ≤±2° Whole-group operation time (including relay’s intrinsic time): Intrinsic operating time of current instantaneous over-current protection: not greater than 40ms at 1.2 times the setting value  Measuring accuracy AC current: Class 0.2 AC voltage: Class 0.2 4~20mA DC quantity input: ≤±1% Power: Class 0.5 Integral energy: Class 1 (active), Class 2 (reactive) Frequency: ≤±0.02Hz SOE resolution: ≤2ms Pulse width of pulse quantity: ≥10ms 4~20mA DC quantity output: ≤±1%  Capacity of trip/closing output contact Can be connected to DC 250V, 8A for prolonged periods.  GSP clock synchronization error Clock synchronization error≤2ms  Environmental conditions 　 Ambient temperature: 　 Operating：-20℃～+55℃. Storage：-25℃～+70℃, rainproof and snow-proof rooms with relative humidity not greater than 80%, ambient air free of acid, alkaline or other corrosive and explosive gas. No excitation quality is applied at the limits, the device shall not have any irreversible change. After temperature restoration, the device shall operate properly. Relative humidity: The average relative humidity of the most humid month shall not be greater than 90%, 6 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 the average minimum temperature of this month not lower than 25℃ and there shall be no surface condensation. At the highest temperature of +40℃, the average maximum humidity shall not exceed 50%. Atmospheric pressure: 80kPa~110kPa (below relative altitude of 2KM) 1.2.8 Hardware structure The device uses a 6U, 19/3” standard enclosure, with aluminum alloy casing and installed by overall embedding. The display panel is mounted in the front, and the other plug-in modules are rear mounted. From the rear view, I/O, the power, CPU and AC plug-in modules are from the left to the right.  External dimensions and boring diagram Structural and dimensional diagram Boring diagram for installation Devices fabricated on-screen steps: first release on-screen stents unfastening screws, remove the stents. Install the device on the screen from the front and push until close to the fixed plate. Install the stent 2, and then stent 1, and then use fastening screw to insertion hole from rear of stent1, and then screwed into stent 2 and tighten screw. The stents from up and down are installed in the same way. Use grounding screws to connect grounding line. 7 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 2. Function of device 2.1 3 sections of compounded voltage block directional overcurrent protection This device has 3 sections of compounded voltage block overcurrent protection. They are instantaneous over-current protection, the time-limit instantaneous over-current protection, over-current definite-time limit protection respectively. The current and time setting values of each section can set separately. When the maximum phase current is greater than the setting value of the current, and the negative sequence voltage (the negative sequence voltage is synthesized from the phase voltages) or Under-voltage (being the line voltage; if one or more of the 3 line voltages is/are less than the Under-voltage setting value, Under-voltage component operates to open the over-current protection) condition is met, it will operate on trip after a delay. The protection operation logic is shown in figure 2-1（using instantaneous over-current protection as an example）.In addition, after the operation of the compounded voltage component, a contact can be output separately at the corresponding position. (The precondition to operation of the compounded voltage component is the current is not zero.) Note: the negative sequence voltage (U2) is compound by each phase voltage, low voltage is the minimum value of three phase line voltage. 8 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Umin<Low-voltage compounded setting value voltage block On/Off O ver-current U2>negative sequence ≥1 instantaneous voltage setting value protection On/Off Protection Ia≥Over-current & T output instantaneous setting value sequence Ib≥Over-current instantaneous setting value ≥1 Ic≥Over-current instantaneous setti ng value Figure 2-1 Operation logic of compounded voltage lock over-current protection 2.2 Inverse time limit over-current protection As stipulated by the IEC (IEC255-4), the following 4 standard characteristic equations are usually used. The user may select one as the case may be: t 0.14 0.02  p Standard inverse time limit: ( I / I p )  1 （1） 13.5 Unusual inverse time limit: t  ( I / I )   1 p （2） p t 80 2  p Extreme inverse time limit: ( I / I p )  1 （3） 120 Long inverse time limit: t  (I / I )  1  p （4） p Where: I is the fault current, Ip is the setting value of the inverse time limit starting current, τp is the transformer’s overcurrent inverse time limit constant, corresponding to the overload capacity of the transformer, derived from calculation. When the amplitude of the inverse time limit overcurrent of any of phases A, B and C is greater than the setting value of the inverse time limit starting current, the device will operate on trip according to the inverse time limit characteristic curve. The software makes selection by inverse time limit characteristic control word. The protection operation logic is shown in Figure 2-2.  Note: Imax=max{Ia，Ib，Ic}，the same below Inverse time limit over- T Imax>Ip current On/Off Protection output sequence Figure 2-2 Operation logic of inverse time limit over-current 2.3 Negative sequence overcurrent protection By processing of the currents of Phases A, B and C, the negative sequence current is calculated. The negative sequence overcurrent protection is available in the definite time limit and inverse time limit modes. Negative sequence overcurrent definite time limit：If the negative sequence current exceeds the setting of negative sequence current, the device will operate on trip. 9 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Negative sequence overcurrent inverse time limit：Having four characteristic curves for choice, the same as the high voltage side inverse time limit overcurrent protection. To avoid any potential protection false operation arising from the asynchronism of the 3 phases upon closing of the circuit breaker, the set delay shall not be less than 0.2S. 2.4 Overload protection For Phases A, B and C, when the maximum phase current is greater than the overload setting value, there will be an operation after a delay. The protection output may elect to operate on signal or trip. The protection operation logic is shown in Figure 2-3. Overload On/Off Imax>Overload T Protection output setting value sequence Figure 2-3 Operation logic of overload protection 2.5 High-voltage side ground protection The zero sequence current uses special zero sequence CT, which can detect the primary cable zero sequence CT current accurately. When the current exceeds the setting value and the setting delay is reached, the protection will operate. The protection output may operate on signal or trip. I0> zero sequence Protection On/Off T Protection output curre nt setting value sequence Figure 2-4 Operation logic of high-voltage side ground protection 2.6 Low-voltage side ground protection The low-voltage zero sequence overcurrent protection is available in the definite time limit and inverse time limit modes, the same as the negative sequence overcurrent protection. 2.7 Voltage protection 2.7.1 Under voltage protection The device judges the maximum line voltage value, if it is lower than the setting value and the setting delay is reached, the protection will operate on trip and is blocked by the switch position, and PT failure. The protection operation logic is shown in Figure 2-5. Circuit breaker at closed position Umax<Uddy & Undervoltage on/off Protection & T output PT failure PT failure block sequence Figure 2-5 Operation logic of Under-voltage protection To avoid any potential protection false operation upon closing of the circuit breaker, the setting 10 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 delay shall not be less than 0.2S. 2.7.2 Overvoltage protection The device judges the maximum line voltage value, if it is greater than the setting value and the setting delay is reached, the protection will operate on trip and is blocked by the switch position. The protection operation logic is shown in Figure 2-6. C ircuit breaker at closed position Over-voltage on/off & T Protection Um ax〉Ugdy output on/off Figure 2-6 Operation logic of Overvoltage protection 2.8 Body protection The device has 5 body protections, such as heavy gas trip, light gas alarm, Over temperature trip, temperature alarm and pressure relief protection. The operation contact signal operates on trip or alarm subject to CPU processing, and its operating time is recorded by the software. 2.9 Non-electric quantity protection（Can be selected or not） The device has the 2-way non-electric quantity protection function, switched on/off by control word, which are used for trip. 2.10 PT failure alarm The judgment criterion of PT failure depends on the wiring mode. When the PT failure block function is enabled, if PT failure occurs, the device will exit from judgment of Undervoltage protection and compounded voltage block component. The judgment criterion of PT failure is as follows: The current value of the phase with the maximum current is less than the maximum load current (using the setting value of the overload current). ① Maximum inter-phase voltage < 30V, and current of any phase > 0.1In; ② Negative sequence voltage > 8V If any of the above conditions is met, the delay (settable) will report PT failure, and will return when failure disappears. Max{ Ia，Ib，Ic}<Igfh MaxU<30V & PT failu re on/off PT failure Max{Ia,Ib,Ic}>0.1*In & TPT operation ≥ information U2>8V MaxU=Max(Uab,Ubc,Uca) MinU=Min(Uab,Ubc,Uca) Figure 2-7 PT failure judgment logic 11 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 2.11 CT failure alarm(CT Failure Alarm) This protection device sets CT failure for both high and low voltage side separately. When the CT failure function is turned on, if any of the high or low voltage side’s CT failure occurs, the device sends alarm signal. Among the protection CT of both high and low voltage side, when the current value of any phase exceeds the setting value of the overload protection current, CT failure detection will be disabled.  Protection CT 3-phase wiring During normal operation, the sum of the 3 phase currents is zero (less than 0.1 times the rated current). In case of CT failure in any phase, the sum of the 3 phase currents is not zero (greater than 0.1 times the rated current). To differentiate from ground fault, the following judgment is required: ①In the 3 phase currents, the value of the phase with the minimum current is zero (less than 0.1 times the rating current). ②The value of the phase with the maximum current is not zero (greater than 0.1 times the rated current), but less than the setting value of the overload current.  Protection CT 2-phase wiring A phase is greater than 0.15In and less than the setting value of the overload current. A phase less than 0.08 In is judged as CT failure. Above-mentioned judgment is applicable to high and low voltage side CT failure. For high voltage side CT failure, the setting value of overload current is the setting value of the overload protection’s current, to be set in “Overload” in menu “Setting Value”; For low voltage side CT failure, the setting value of overload current is the setting value of the low voltage side overload protection’s current, to be set in “Failure Alarm” in menu “Setting Value”. 2.12 Operate circuit break This function can be selected or not..When this function be selected, the device monitoring the HWJ and TWJ states. If HWJ and TWJ both On or Off, the delay (settable) will report operate circuit break, and will return when failure disappears. 2.13 Under-frequency unloading protection(Under-frequency) The frequency is derived from software calculation, use the frequency of UAB. The unloading protection is blocked by under-voltage block, under-current block or slip block, in which slip block can be switched On/Off. The operation logic of under-frequency unloading is shown in Figure 2-8. 12 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 F<Fdpjz Low-frequency Df/dt<Dfdt unloading protection on/off Tdpjz Protection output Imax>Idzh & sequence Uab>Udz Figure 2-8 Operation logic of under-frequency unloading 2.14 Longitudinal differential protection(Diff.Protect) 2.14.1 Differential instantaneous over-current protection(Inst.Diff.PROT) The differential instantaneous over-current protection operates quickly when there is a serious fault in the transformer. When any phase’s differential current is greater than the differential instantaneous over-current setting value, there will be an instantaneous operation on the output. The protection operation logic is shown in Figure 2-9. Differential instantaneous current compute formula is shown as follows: Idif  I1  K phI2 I1 is current of the high voltage side K ph is equilibrium coefficient of the low voltage side（set in menu “System Parameters”） I2 is current of the low voltage side. Iadif>difference instantaneous current setting value Difference Ibdif>difference instantaneous Protection output instantaneous on/off sequence current setting value ≥ Icdif>difference instantaneous current setting value Figure 2-9 Operation logic of differential instantaneous protection 2.14.2 Percentage differential protection(Per.Diff.PROT) The 3-broken-line percentage differential principle applies to transformer percentage differential protection, with the operation equation of: I  I When Ires < Ir1， dif do When Ir1 < Ires < Ir2 I， dif - Ido  Kres1  Ires - Ir1  Ires > Ir2 Idif - Ido - Kres1  Ir2 - Ir1   Kres2  I - IWhen ， res r2  If any of the above conditions is met, the percentage differential protection will operate. I Where: dif is the differential current Idif  I1  K phI2 ; Ido is the setting value of the differential threshold current; 13 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Ires is the braking current; Ires = Idif - I1 - K phI2 ; Ir1 is the braking current of Inflexion point 1; Ir2 is the braking current of Inflexion point 2; Kres1 is Percentage factor 1; Kres2 is Percentage factor 2; I1, I 2 are secondary side currents of the current transformer on the high-voltage side and low-voltage side respectively. The current transformers on both sides are wired in the Y type and pointed to the transformer. By setting the unbalance factor and wiring mode, the device can adjust the amplitude and phase of the currents on both sides automatically. The percentage differential protection can ensure the external short-circuit does not operate and has high sensitivity when there is an internal fault. I d if I d o I r1 I r2 I re s Figure 2-10 Differential operation curve Using control word, you can elect whether to block percentage differential protection via instantaneous CT failure sends alarm signal at the same time. Harmonic braking equation: I / I  K h.x dif.x xb Where I： h.x is second harmonic component of differential current; I dif .x is differential current of every phase; Kxb second harmonic braking coefficient, to be set for the excitation surge when transformer no-load closing is avoided. If the percentage of second harmonic component in differential current is greater than the setting coefficient, then judge unbalanced current which produced by transformer excitation surge making operation of percentage differential protection, so block percentage differential protection at that time. 2.14.3 Differential current over-limit alarm(Diff.C OL Alarm) If the differential current of any phase is greater than the setting value, the device will send alarm signal after 10s.It can discover inner trouble of transformer to inform inspector to examine and repair in time. 14 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Ia2>d ifference current over-limit setting value Ib2>difference current over-limit DIfferential current over- Protection output setting value limit alarm On/Off sequence≥ Ic2> difference current over-limit setting value Figure 2-11 logic of differential current over-limit alarm 2.15 Pulse Energy/integral energy（Can be selected or not）  Pulse Energy The impulse circuit of the device uses an internal power supply; passive energy impulses are input from the outside; and accumulation of Pulse Energy is finished by the software.  Integral energy The software accumulates active and reactive powers into active and reactive energy in real time. 2.16 Fault recorder See the communication coding table for the protection voltage and current waveform data collected by the recording unit. 2.17 Network print Device supports network printing function, can print remote control information, soe information and the setting parameter list. The printer IP address must been set rightly on the device (the network segment of printer must be as same as that of device IP addresses), then connect a printer, put on "real-time report print ", it can print the current remote control information or SOE information when device is connected to the back-ground (including remote communication shift, protection action), and can print the current SOE information when device is not connected to the background. In addition, when press the "ok" button in the "print report" or "print setting value" menu, it can print the all setting parameter or the all report information, including action value. 2.18 Virtual correspondent node remote test The function is used to complete the communication node remote test of the device, do not need to access the actual analog electric quantity or the input quantity. Specific operation as follows, connect to the background, In the remote test menu, operate the “virtual input test”, the “virtual measure test” and the “virtual SOE test” menu in the “remote test” menu, press the "OK" button after the modification of various settings, then by observing the background pop-up warning window or the change of the corresponding value, to determine whether the device communication node is right. It is convenient for debugger to debug the device on-site. When you are in the mode of remote test, the all protect must be off. 2.19 GPS clock synchronization The GPS clock synchronization signal is input as rs485 differential voltage, the device is able 15 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 to receive GPS clock second synchronization. If there is GPS signal, there will be flashing on the bottom of cycle menu. Otherwise won’t. The principle of GPS clock synchronization: The second pulse or minute pulse act with the monitoring system, the time base with second precision is sent by monitoring system, when the GPS second differential signal arrives, the time base is unified and the milliseconds are cleared. The device is able to receive GPS clock second synchronization or IRIG-B through RS485 differential voltage, and it can be done with monitoring system to accomplish GPS precise clock synchronization or Ethernet-based SNTP synchronization. 2.20 Overhaul status When the device put into overhaul plate, remote sign, remote measure can uploading background computer. But the device can’t remote control by background computer. The SOE event、Alarm event、Trip event, etc also can’t uploading background computer. 3. Setting of parameters and setting values of the device 3.1 System parameters Parameter Range Description Settings of setting value zone number（Setting Zone No.） Setting value zone 0-7 Set step:1（factory default 0） number(Setting Zone No.) Communication settings（Comm. Setting） NET Protocol 0-2 Set step :1 (factory default 1) （0-Quit;1-IEC104; 2-IEC61850） RS485 Protocol 0-2 Set step :1 (factory default 0) （0-Quit;1-IEC103; 2-Modbus） RS485 address(RS485 1-99 Set step:1（factory default 1） Address) RS485 baud rate(RS485 Set step:1（factory default 2）0：2.4KB;1：4.8KB; 0-5 Baudrate) 2：9.6KB;3：19.2KB;4：38.4KB;5：115.2KB; IP address(IP Address) One section set step:1（factory default 192.168.0.253） SNTP Address (SNTP It has four One section set step:1（factory default 192.168.0.254） Address) sections. The KW default value(KW range of every One section set step:1（factory default 12.8.6.1） Default) section is Printer IP address(Printer 0-255 One section set step:1（factory default 192.168.0.134） IP) 16 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Parameter Range Description Coefficient of transformer PT Ratio 1-1500 Set step: 1 (factory default 1) CT Ratio 1-5000 Set step: 1 (factory default 1) Setting of basic parameters(B. Parameters) Rating Current（In） 0-1 Set step: 1 (factory default 0) 00: 5A. 01: 1A CT Wiring Mode 0-1 Set step: 1 (factory default 0) 00: 3-phase. 01: 2-phase PT Wiring Mode 0-1 Set step: 1 (factory default 0) 00: Y-Y. 01: V-V For harmonic calculation, select the corresponding reference quantity: Harmonic Channel 0-12 0：exit from harmonic calculation function 1:Ia1,2:Ib1,3:Ic1,4:I0,5:IA,6:IC,7:I0L,8:Uab, 9:Ubc,10:Ia2,11:Ib2,12:Ic2 Wave Record 0-1 Set step:1（factory default 0）00：Off;01：On 00：ungrounded Earth Mode 0-1 01：grounded （While ordering if have no special elucidation then according to ungrounded mode allocation） Remote communication 10-100ms Set step: 1 (factory default 40ms) ack time (input ack time) 0:YD-11,1:YD-1,2:DY-1,3:DY-11,4:YY-12 Transformer wiring Mode 0-4 （factory default 0） Low-voltage side balance 0-10 Set step: 0.01 (factory default 1) coefficient Measure IB Set step: 1 (factory default 0) 0-1 compound(IB compound) 00：non-compound；01：compound Remote/Local switch 0-1 Set step: 1 (factory default 0) 00：exit；01：on Real-time print report 0-1 Set step: 1 (factory default 0) 00：exit；01：on on/off(auto print report) Display Mode 0-1 Set step: 1 (factory default 0) 00：Diagram；01：Analog D/A channel setting(D/A Setting) Select DA1~2 to output corresponding reference DA1~2 Channel quantities: 0-7 Selection 0: No D/A output 1:IA,2:IC,3:Uab,4:Ubc,5:Uca,6:P,7:Q Voltage reference quantity: 0-120V corresponding to 17 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Parameter Range Description 4mA-20mA. Rating 5A： Current reference quantity: 0-6A corresponding to 4mA-20mA, Power reference quantity: 0-1000W corresponding to 4mA-20mA. Rating 1A： Current reference quantity: 0-1.2A corresponding to 4mA-20mA, Power reference quantity: 0-200W corresponding to 4mA-20mA. DA1～2 Adjustment 0.5-1.5 Adjust D/A channel 1～2（4-20mA） parameters Factor Integral Energy 0-4294967.295k Positive active energy Wh 0-4294967.295k Positive reactive energy vh Set step:0.001 0-4294967.295k Press “confirm” for reservation, and revert to last menu. Negative active energy Wh 0-4294967.295 Negative reactive energy kvh Channel factor setting(Channel Coef.) Set step:0.001（factory default 1） Channel data 1～12 0.5-1.5 Channel data 1-12 are corresponded to the channel factor of analog quantity 1-12. Set step:0.001（factory default 1） Channel data 13～14 0.5-1.5 Channel data 13,14 are corresponded to channel factor of DC quantity 1,2. 18 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 3.2 List of setting values Setting value Range Description Instantaneous Overcurrent Protection On/Off 1/0 1/0：On/Off (factory default Off) (Inst.PROT) The time Delay Instantaneous Overcurrent Protection On/Off 1/0 1/0：On/Off (factory default Off) (Delay Inst.PROT) Overcurrent Definite-time Limit Protection On/Off 1/0 1/0：On/Off (factory default Off) (DT Overcurrent) Instantaneous Overcurrent Compounded Voltage Lock On/Off 1/0 1/0：On/Off (factory default Off) (Inst. CV Lock) The time delay Instantaneous Compounded Voltage Lock On/Off 1/0 1/0：On/Off (factory default Off) (Delay CV Lock) Overcurrent Definite-time Limit Compounded Voltage Lock On/Off 1/0 1/0：On/Off (factory default Off) (DT OC CV Lock) Inverse time Limit Overcurrent Protection On/Off 1/0 1/0：On/Off (factory default Off) (IT Overcurrent) Negative sequence over-current 1/0 1/0: On/Off (factory default Off) definite time limit (NS OC DT) Negative sequence over-current 1/0 1/0: On/Off (factory default Off) inverse time limit (NS OC IT) Overload alarm (Overload Alarm) 1/0 1/0: On/Off (factory default Off) Overload trip 1/0 1/0: On/Off (factory default Off) (Overload Trip) Zero sequence over-current Section I 1/0 1/0: On/Off (factory default Off) (ZS OC 1 Trip) Zero sequence over-current 1/0 1/0: On/Off (factory default Off) Section II (ZS OC 2 Trip) Zero sequence over-current 1/0 1/0: On/Off (factory default Off) Section III alarm (ZS OC 3 Alarm) Zero sequence over-current 1/0 1/0: On/Off (factory default Off) Section III trip (ZS OC 3 Trip) 19 Protection on/off word MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Setting value Range Description Under-voltage zero sequence definite time limit over-current 1/0 1/0: On/Off (factory default Off) (UV ZS OC DT) Under-voltage zero sequence inverse time limit over-current 1/0 1/0: On/Off (factory default Off) (UV ZS OC IT) Under-voltage 1/0 1/0: On/Off (factory default Off) protection(Undervoltage) Over-voltage 1/0 1/0: On/Off (factory default Off) protection(Overvoltage) Heavy gas trip 1/0 1/0: On/Off (factory default Off) (Heavy Gas Trip) Light gas alarm 1/0 1/0: On/Off (factory default Off) (Light Gas Alarm) Over-temperature trip(Over 1/0 1/0: On/Off (factory default Off) Temp.Trip) Temperature alarm(Temperature 1/0 1/0: On/Off (factory default Off) ALM) Pressure relief trip(P-relief Trip) 1/0 1/0: On/Off (factory default Off) Non-electric quantity 1 protection 1/0 1/0: On/Off (factory default Off) (Non-electric 1) Non-electric quantity 2 protection 1/0 1/0: On/Off (factory default Off) (Non-electric 2) PT failure alarm 1/0 1/0: On/Off (factory default Off) (PT Failure Alarm) PT failure block 1/0 1/0: On/Off (factory default Off) (PT Failure Lock) CT failure alarm 1/0 1/0: On/Off (factory default Off) (CT Failure Alarm) Compounded voltage contact output 1/0 1/0: On/Off (factory default Off) (CV Point Output) Under-frequency unloading 1/0 1/0: On/Off (factory default Off) (Under-frequency) Slip block(Slip Lock) 1/0 1/0: On/Off (factory default Off) Differential instantaneous over-current protection 1/0 1/0: On/Off (factory default Off) (Inst.Diff.PROT) Percentage differential protection 1/0 1/0: On/Off (factory default Off) (Per.Diff.PROT) 20 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Setting value Range Description Overcurrent protection Undervoltage block 10.00-90.00V Set step:0.01V(factory default 90V) (Undervoltage) Negative sequence voltage block 2.00-30.00V Set step:0.01V(factory default 10V) (NS Voltage) Instantaneous current 0.10-100.00A Set step:0.01A(factory default 100A) (Inst.Current) Instantaneous delay 0.00-100.00s Set step:0.01s(factory default 100s) (Inst.Time) The time delay instantaneous current 0.10-100.00A Set step:0.01A(factory default 100A) (Delay Inst.C) The time delay instantaneous delay 0.00-100.00s Set step:0.01s(factory default 100s) (Delay Inst.Time) DT overcurrent 0.10-100.00A Set step:0.01A(factory default 100A) (DT Overcurrent) DT overcurrent 0.00-100.00s Set step:0.01s(factory default 100s) (DT OC Time) Overcurrent inverse time limit protection Inverse time limit characteristic curve 1-4 Set step:1(factory default 1) (IT Trait Curve) Inverse time limit constant 0.00-1.00s Set step:0.01S (factory default 1s) (IT Time Contant) Inverse time limit starting current 0.10-100.00A Set step:0.01A(factory default 10) (IT Start Current) Negative sequence overcurrent Negative sequence current 0.00-100.00A Set step:0.01A(factory default 100A) (NS DT Current) Negative sequence overcurrent Set step:0.01s(factory default 100s) delay 0.00-100.00s (NS DT Time) 21 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Setting value Range Description Negative sequence inverse Set step:1(factory default 1) time limit characteristic curve 1-4 (NS IT Curve) Negative sequence inverse time limit constant 0.00-1.00s Set step:0.01S (factory default 1s) (NS IT Constant) Negative sequence inverse time limit starting current 0.10-100.00A Set step:0.01A(factory default 10) (NS IT Start C) Overload Overload current 0.10-100.00A Set step:0.01A(factory default 100A) (Overload Current) Overload delay 0.00-100.00s Set step:0.01s(factory default 100s) (Overload Time) High-voltage side zero sequence overcurrent Setting value of Zero sequence overcurrent Section I Set step: 0.01A 0.00-100.00A (factory default 2A) (ZS Overcurrent 1) Zero sequence overcurrent Set step: 0.01S Section I delay 0.00-100s (factory default (ZS OC 1 Time) 100s) Standard products Setting value of Zero sequence are designed based overcurrent Section II Set step: 0.01A 0.00-100.00A on a neutral point (factory default 2A) (ZS Overcurrent 2) ungrounded Zero sequence overcurrent Set step: 0.01S system. Specify Section II delay 0.00-100s (factory default any other mode (ZS OC 2 Time) 100s) upon ordering if Setting value of Zero sequence any overcurrent Section III Set step: 0.01A 0.00-100.00A (factory default 2A) (ZS Overcurrent 3) Zero sequence overcurrent Set step: 0.01S Section III delay 0.00-100s (factory default (ZS OC 3 Time) 100s) Low-voltage side zero sequence overcurrent Setting value of low-voltage 0.10-100.00A zero sequence current Set step: 0.01A (factory default 100A) (DT Current) Definite time limit delay 0.00-100.00s Set step: 0.01s (factory default 100s) 22 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Setting value Range Description (DT Time) Inverse time limit characteristic curve selection 1-4 Set step: 1 (factory default 1) (IT Trait Curve) Inverse time limit constant 0.00-1.00s Set step: 0.01S (factory default 1s) (IT Time Contant) Inverse time limit starting 0.10-100.00A current Set step: 0.01A (factory default 10A) (IT Start Current) Voltage protection Undervoltage setting value 10.00-90.00V Set step: 0.01V (factory default 90V) (Undervolt. Value) Undervoltage delay 0.10-100.00s Set step: 0.01S (factory default 2s) (Undervolt. Time) Overvoltage setting value 90.00-150.00V Set step: 0.01V (factory default 110V) (Overvolt. Value) Overvoltage delay 0.10-100.00s Set step: 0.01S (factory default 2s) (Overvolt. Time) Failure setting value PT failure delay 0.50-100.00S Set step: 0.01S (factory default 10S) (PT Failure Time) CT failure delay 0.50-100.00S Set step: 0.01S (factory default 10S) (CT Failure Time) Low voltage side overload current （Only used for low-voltage 0-100.00A Set step: 0.01A (factory default 100A） side CT failure criterion） (UV Side Overload) Non-electric quantity protection Setting value of Non-electric quantity 1 current(Non-elec.1 4.00-20.00mA Set step: 0.01mA (factory default 20mA) Value) Setting value of Non-electric quantity 1 delay (Non-elec.1 0.00-100.00S Set step: 0.01S (factory default 100S) Time) Setting value of Non-electric quantity 2 current 4.00-20.00mA Set step: 0.01mA (factory default 20mA) (Non-elec.2 Value) 23 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Setting value Range Description Setting value of Non-electric quantity 2 delay (Non-elec.2 0.00-100.00S Set step: 0.01S (factory default 100S) Time) Under-frequency unloading Setting value of under-frequency unloading 45.00-50.00Hz Set step: 0.01Hz (factory default 48Hz) (Under-freq.Value) Setting value of under-frequency unloading 0.50-100.00S Set step: 0.01S (factory default 5S) delay(Under-freq.Time) Setting value of under-frequency unloading low current block(Low Current 0.2-5A Set step: 0.01A (factory default 2A) Lock) Setting value of under-frequency unloading under-voltage block(Undervolt. 10.00-90.00V Set step: 0.01V (factory default 90V) Lock) Setting value of under-frequency unloading slip 0.5-10.00Hz/s Set step: 0.01Hz/s (factory default 1Hz/s) block(df/dt Lock) Longitudinal differential protection Differential protection Sudden change quantity(Abrupt 0.1-10.00A Set step: 0.01A (factory default 1A) Current) Setting value of differential instantaneous over-current 0.1-100.00A Set step: 0.01A (factory default 100A) current (Inst.Diff. C) Percentage differential 0.1-100.00A Set step: 0.01A (factory default 100A) threshold current (Per.Diff. Sill) Percentage differential braking inflexion point 0.1-20.00A Set step: 0.01A (factory default 5A) 1(Per.Res.Inflex.1) Percentage differential braking inflexion point 0.1-20.00A Set step: 0.01A (factory default 5A) 2(Per.Res.Inflex.2) Percentage braking coefficient 1 0.00-1.00 Set step: 0.01 (factory default 1) (Restraint Coef.1) Percentage braking coefficient 2 0.00-1.00 Set step: 0.01 (factory default 1) (Restraint Coef.2) Second harmonic braking 0.00-1.00 Set step: 0.01 (factory default 1) coefficient (Sec.Res.Coef.) 24 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Setting value Range Description Differential over limit current value 0.1-100.00A Set step: 0.01A (factory default 100A) (Diff.C OL Value) Operate circuit break Operate CIR Time 1.00-100.00S Set step:0.01s(factory default 3s) 4. Description of binary input, output and analog quantity 4.1 Monitoring of analog quantities Analog quantities can be monitored under the [Protection Data], [Measured Data] and [Pulse Energy] menus in the [Run States] menu, press the “”, “” keys to flip over. The factory precision of the device has been calibrated. The protection current is calibrated at double the rated current and the measuring current at a single rated current. The list is as follows: Note: for protection CT 3-phase, PT Y-Y wiring. due to the under-frequency unloading protection of this device, the frequency display is put in the protection data. Analog quantity Analog quantity Test method terminal name Terminals D01, Protection Phase A Add double the rating, displayed deviation not D02 current (Ia1) exceeding 1% Protection Phase Add double the rating, displayed deviation not Terminals D03, D04 B current (Ib1) exceeding 1% Protection Phase Add double the rating, displayed deviation not Terminals D05, D06 C current (Ic1) exceeding 1% Zero sequence Terminals D07, D08 Add 1A, displayed deviation not exceeding 0.2% current (I0) Measurement Add a single rating, displayed deviation not Terminals D09, D10 Phase A current exceeding 0.2% (IA) Measurement Add a single rating, displayed deviation not Terminals D11, D12 Phase C current exceeding 0.2% (IC) Low-voltage side Add double the rating, displayed deviation not Terminals D13, D14 zero sequence exceeding 0.2% current (I0L) AB wire voltage Terminals D15, D16 Add 50V, displayed deviation not exceeding 0.5% (Uab) F system Add 50V 50Hz, displayed deviation not exceeding Terminals D15, D16 frequency ±0.02Hz BC wire voltage Terminals D17, D18 Add 50V, displayed deviation not exceeding 0.2% (Ubc) Low-voltage side Add double the rating, displayed deviation not Terminals D19, D20 Phase A current exceeding 1% (Ia2) 25 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Analog quantity Analog quantity Test method terminal name Low-voltage side Add double the rating, displayed deviation not Terminals D21, D22 Phase B current exceeding 1% (Ib2) Low-voltage side Add double the rating, displayed deviation Terminals D23, D24 Phase C current not exceeding 1% (Ic2) 4～20mA DC Input Terminals D25、D26 Add 10mA, displayed deviation not exceeding 1% 1 4～20mA DC Input Terminals D27、D28 Add 10mA, displayed deviation not exceeding 1% 2 Terminals D09、 D10;D13、D14 add Add a single rating to current and 100V to line voltage current by polarity;D15、 3-phase active power Alter phase angle, displayed power deviation not D16;D17、D18;D19、 exceeding 0.5% D20 add voltage by polarity Terminals D09、 D10;D13、D14 add Add a single rating to current and 100V to line voltage current by polarity;D15、 3-phase reactive Alter phase angle, displayed power deviation not D16;D17、D18;D19、 power exceeding 0.5% D20 add voltage by polarity 4.2 Monitoring of binary input Binary input can be monitored under the [Binary input] menu in the [Run States] menu, press the “”, “” keys to flip over. Binary input Binary input name Test method terminal B01 Common terminal of binary input - External power supply of 220V or 110V DC （Should be connected to DC220V can be applied, connect the negative terminal or DC110V to terminal B01, positive terminal to terminal negative terminal of external power B02～B21, in [Binary input] menu in the supply） [Run States], the status of binary input can be B02 Breaker position seen. B03 Trolley run position The device also has a 24V DC supply, if 26 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 B04 Trolley test position it is used, terminal B22 can be connected to B05 Earth switch position terminal B02～B21, in [Binary input] menu in B06 Spring is not energized the [Run States], the status of binary input can B07 Heavy gas trip be seen. (Heavy Gas) “Manual Trip”, “Manual Close” , “TWJ” , B08 Light gas warning “HWJ” are taken from the operate circuit to (Light Gas) monitoring the status. B09 Over temperature trip Connect the negative terminal to terminal (Over T Trip) A11 (-KM), positive terminal to terminal A06 B10 Temperature warning (Manual Close), A08(Manual Trip),in [Binary (Temp. Alarm) input] menu in the [Run States], the status of B11 Input 10 binary input can be seen. B12 Input 11 Connect the positive terminal to terminal B13 Input 12 A12(+KM), negative terminal to terminal A05(TWJ),A04(HWJ),in [Binary input] menu B14 Input 13 in the [Run States], the status of binary input B15 Input 14 can be seen. B16 Input 15 Connect the negative terminal to terminal B17 Input 16 A11(-KM),positive terminal to terminal B18 Input 17 A14(Remote common),in [Binary input] B19 Input 18 menu in the [Run States], the Remote/Local B20 Input 19 status of binary input can be seen. B21 Overhaul Please note about the binary input voltage Binary input Manual Trip upon ordering, it is set to DC220V by default. of Operate Manual Close circuit HWJ TWJ Remote/Local B22 Positive terminal of internal 24V power supply 4.3 Monitoring of binary output Binary output can be monitored under the [Binary output] menu, press the ““, ““ keys to flip over. Binary output terminals Binary output name Test method B23-B24 Trip Signal Select open and close menu, use “+”, “-” B23-B25 Alarm Signal key to operate and test the corresponding B23-B26 Operate CIR Signal terminals. A29-A30 and A31-A32 are A17-A18 PROT Output 1 common open terminals that should close. 27 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 A19-A20 PROT Output 2 A21-A22 Output 3 A23-A24 Output 4 A25-A26 Output 5 A27-A28 Output 6 A29-A30 Output 7 A31-A32 Output 8 A14-A16 Remote Trip A14-A15 Remote Close 5. Operation instructions 5.1 Control panel of device  320*240 matrix LCD (The LCD will go off after a period of absence of keyboard operation. the LCD will be illuminated automatically when any key is pressed or in case of protection trip or alarm.)  Signal indicator: run, communication, trip, alarm, device fail, backup, remote.  Key pad: , , , , Cancel, -, +, Enter, Revert 5.2 Instructions for use of key pad and LCD display During the device’s normal operation, it will display the primary measuring current、voltage、 power, secondary protective data、measuring data、device address、time and statue (indicating whether reclosure charging is finished) in cycle. Press the “Enter” key to enter the main menu, which is a multi-level tree menu. Press the ““, ““ keys to move the cursor to the desired entry, press the “Enter” key to enter this entry, and press the “Cancel” key to return to the next higher 28 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 level of screen. If this screen is still a menu, continue to press the ““, ““ key to select the desired entry, press the “Enter” key to enter the next level of screen, and press the “Cancel” key to return to the next higher level of menu. If there is no menu screen, be sure to press the “Cancel” key to return to the next higher level of menu. The main menu is shown at the center of the following figure, with the corresponding submenus on both sides. 01.Run States -1/8- Protection Data Main menu Measuring Data 05.Report Dis. -1/4- Binary Input 01.Run Status Trip Report Soft Strap Binary Report Pulse Energy 02.Run Parameters Event Report Harmonic Data 03.Setting View 06.Parameters -1/6- 02.Run Param. -1/3-  Setting Zone No. 04.Setting Value Comm. Setting Transformer Coe. PROT On/Off 05. Report Manage B. Parameters D/A Setting 03.Setting View-1/16- 06. SYS Parameters Pulse Energy  3-overcurrent Inverse time limit 07.Device Test 07.DeviceTest. -1/2- overcurrent  Output Test N-seq. overcurrent 08.PassWord Lamp Test04.Setting Value-1/16-  3-overcurrent 09.Version Info. Inverse time limit 08.Password overcurrent 10.Comm Test □□□□ N-seq. overcurrent PROT AUTO DEV V2.00 Type:MTPR-820Hc 10.Comm test ID:□□.□□.□□ Input Test CRC:□□□□□□□□ Measure Test Date:201XX-XX-XX  Note 1:For the Setting menu, see the description of each device.  Run Status The [Run Status] menu contains 8 submenus, including protection data, measuring data, binary input, soft strap, pulse energy, harmonic data, DC measurement and trip statistics, AD voltage data. It is described as follows: 29 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 PROT Data -1/14- Ia1 = □□□·□□ A 000.0° High voltage side protection currents Ib1 = □□□·□□ A 000.0° PT secondary line voltage value Ic1 = □□□·□□ A High voltage side protection positive sequence current 000.0° High voltage side protection negative sequence current Uab = □□□·□□ V 000.0° Ubc = □□□·□□ V 000.0° Uca = □□□·□□ V 000.0° Meas. Data -1/10- IA = □□□·□□ A 000.0° Measuring CT secondary current value IB = □□□·□□ A 000.0° IC = □□□·□□ A 000.0° Converted to PT, CT secondary active power P = □□□□·□ W Converted to PT, CT secondary reactive power Q= □□□□·□ var Cosine function for included angle of voltage Cosφ = □·□□□ and current. for -90°<φ<90°, COSφ is positive. for 90°<φ<270°, COS φ is negative At Closed, breaker is at closed position. at Open, breaker is at open position. Binary Input -1/25- Note: The position of the breaker relates to protection Break :□ logic, with fixed position. Trolley Run :□ When Closed, trolley at running position Trolley Test :□ When Closed, trolley at test position Earth Switch :□ When Closed, earth switch at closed position When Closed, energy storage not completed Spring :□ Heavy Gas :□ Description varies with model, see corresponding terminal Light Gas :□ diagram for details Over T Trip :□  NoAtel: In the standard configurations, the input circuit has the connection to an external 220VDC control power supply. When no DC control power supply or control system is available on site, but a 110VDC control power supply is available, a 110VDC control power supply may be used for direct connection through local hardware adjustment, or the 24V power supply of the device may be used as the input power supply (when the input common terminal is +24V, terminal number: B22, Terminal B01 is kept float). However, this must be specified upon ordering. 30 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Soft Strap -1/43- Inst. PROT Off Delay Inst. PROT Off ...... Pulse Energy -1/4- Accumulation of the device’s real-time active and ＋□□□□□□□·□□□kWh reactive calculations over time, + for positive ＋□□□□□□□·□□□kvh direction, - for negative direction. －□□□□□□□·□□□kWh －□□□□□□□·□□□kvh Harmonic Data -1/10- 2nd ： □□□·□□% 3rd ： □□□·□□% 4th ： □□□·□□% 2~11 harmonics for which analog channels 5th ： □□□·□□% have been selected in system ...... DC Input Data -1/2- External DC input 4~20mA (2-way) DC1：□□□·□□mA DC2：□□□·□□mA AD Volt. Data -1/2- AD Voltage Check AD1：□□·□□□V AD2：□□·□□□V  Run Parameters In the [Run Parameters] menu includes 3 submenus,including [Settng Zone No.]、[PROT On/Off]、[Clock Setting], The screen Content is as follows:  Setting Zone No. :Range 00~07.  PROT On/Off:The device protect plate can be select in this menu. PROT On/Off -1/43- Parameter Modify Inst. PROT On Off ◇Enter ◆Cancel Press “+”, “-” keys to select the protection function On or Off. The interface will eje ct the window as right chart show when you press the “Enter” key. Move the cursor to t he desired position for modification by pressing the “”, “” keys. Press the “Enter” key to complete setting, and the device will prompt modifying success or not. If the “Cance 31 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 l” key is pressed, the protect plate status setting will be cancelled and the menu will retu rn previous menu.  Clock setting: A battery-back real-time clock is provided in the device, which can perform time adjust remotely via the communication network or in-site time adjust in the [Time Setting] menu. Enter this menu and press the “Enter” key, the clock will stop refreshing and a cursor will appear. Move the cursor to the desired position for modification Clock setting by pressing the “”, “” keys, modify to the desired value with Date：20□□－□□－□□ the “+”, “-” keys. Press the “Enter” key to complete setting. If Time： □□：□□：□□ the “Cancel” key is pressed, the setting will be cancelled and the screen continues to refresh the clock.  Setting View This meun just for query.You can’t modif the value to prevent faulty operation.  Setting Value After entering the password, you can enter the [Setting Value] menu. See the settings description of the protection device for the detailed description.  Report Manage The [Report Manage] menu includes 4 submenus, including trip report, binary report, event report and print report. Event recording includes: device self-check fault, device setting value modification, system parameter modification and setting zone number modification, etc. Trip report can be record for the last 50 events, binary report for 100, event report for 30 at most. Beyond this, the latest report will overwrite the earliest one. Press the “Enter” key to enter the corresponding [To view xx report, please enter report number: 00] menu, and enter any figure within storage volume, press the “Enter” key to display the contents of that report. The screen is as follows: Report No.：□□ ↓ Report No. of this report 20□□-□□-□□ Year, month, day, hour, minute, second and □□：□□：□□：□□□ millisecond when it took place □□□□□□ Press  key to see the specific operation value. Press  and  keys to flip over. Operation values. Action value view Ia = □□□·□□ A Ib = □□□·□□ A Protect CT secondary current value Ic = □□□·□□ A Uab = □□□·□□ V Ubc = □□□·□□ V Protect PT secondary voltage value Uca = □□□·□□ V 32 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018  System parameters After entering the [SYS Parameters] menu, the correct password is required to enter the [SYS Parameters] menu. It displays the following: Parameters -1/6- Comm. Setting Transforrmer Coe. B. Parameters D/A Setting Pulse Energy Channel Coef.  Communication Setting\ Comm. setting -1/8- NET Protocol □□ 00:Quit; 01:IEC104; 02:IEC61850; RS485 Protocol □□ 00:Quit; 01:IEC103; 02:Modbus; RS485 Address □□ Communication address of device 01～99 RS485 Baud rate □□ 00：2.4KB;01：4.8KB;02：9.6KB;03： IP Address 19.2KB;04：38.4KB;05：115.2KB □□□. □□□. □□□. □□□ SNTP Address □□□. □□□. □□□. □□□ For Ethernet communication K W Default □□□. □□□. □□□. □□□ Printer IP □□□. □□□. □□□. □□□  Transform Coefficient TransformCoe -1/2- PT Ratio □□□□ CT Ratio □□□□ Max：1500 Min：0001 It will prompt maximum value and minimum value of each parameter below the window.  Setting of basic parameters (see the description of the protection device for basic parameters) 33 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 B.Parameters: -1/11- Rating Current □□ CT Wiring Mode Setting the CT secondary current rating 00: 5A. 01: 1A □□ Setting the CT secondary wiring mode00: 3-phase. 01: 2-phase PT Wiring Mode □□ Setting the PT secondary wiring mode00: Y-Y. 01: V-V Harmonic Channel □□ Setting analog quantity channels 0~11 for harmonic monitoring, select 0 to exit from the harmonic calculation function  D/A setting The device has two 4~20mA outputs. The DA1~DA2 adjustment factor is used to adjust the accuracy of the channel output. The DA1~DA2 channel selection is used to select the corresponding analog quantity channel (see the description of the protection device for specific reference quantities). In the accuracy test, make sure the field ground is in good contact. otherwise the accuracy might be affected.  Pulse energy setting Energy base numbers can be set, including positive active energy, positive reactive energy, negative active energy and negative reactive energy.  Channel Coefficient The device can adjust channel coefficient by this menu to raise Sample size.  Device test After entering the [Device Test] menu, the correct password is required to enter the [Device Test] menu. It’s have two menu include [Output Test] and [Lamp Test].  Output Test Enter [Output Test] menu, It displays the following: Output Test -1/14- Remote Close Press “Enter” key Remote Close Remote Trip On Off Trip Signal 1 Note: Trip Signal 2 Press “Cancel” key d…… (Note: When the test is performed on the 6 protection outputs, the starting relay will be in the “Closed” state automatically. The “+”, “-” keys are used for switching between the “Close/Open” control.)  Lamp Test Lamp Test ◇Light ◆Quench Used for testing Stand or fall of all LED lights. 34 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018  Password The [Password] menu is used to modify the password for entry into the Settings, System parameters and Output Test submenus. The initial password is provided by the factory. The universal password is “1000”. Move the cursor to the desired position for modification by Input password pressing the ““, “” keys, modify to the desired password with the “+”, “-” keys. Press the “Enter” key to enter the new password 0 0 0 0 setting menu as above. Press the “Cancel” key to cancel the setting.  Version information In the main menu, after entering the [Version Info.] menu, the Type, ID, CRC and Date of the software will be displayed. Note: For a corresponding nonstandard model, the device’s PROT AUTO DEV V2.00 Type:MTPR-820Hc displayed Type does have to be changed. ID:□□.□□.□□ CRC:□□□□□□□□ Date:20XX-XX-XX  Comm test When debugger debug the device on-site in the case of no-accessing the actual analog electric quantity or the input quantity, [Comm Test] is used to do the test of the communication node of the device 6. Check of protection function 6.1 Over-current protection checkout(Overcurrent) Over-current protection has three segments; these are instantaneous over-current protection, the time delay instantaneous protection, over-current definite-time limit protection. It can be set and put on/off respectively. These three protections have same principle. Take instantaneous over-current protection as an example to explain. Connect as figure 6-1, put instantaneous over-current protection and instantaneous over-current compounded voltage block in running. MTPR-820Hc Ia1(Ib1,Ic1) D01(D03,D05) Ia1’(Ib1’,Ic1’) D02(D04,D06)B29 Power supply Ua D15 Ub D16&D17 B30 Uc D18 Figure 6-1 35 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Set in accordance with the table as follow, take the operating value and keep it in the table. When the instantaneous over-current protection is operated, terminals B23-B24、 A17-A18、A19-A20 should be connected. Input 30V for UBC Current setting of and current of phase instantaneous over In 2In 5In 10In current protection(A) A, take UBC as the basis and shift Operating value current to check the Operating zone operating zone Input 30V for UCA Current setting of and current of phase instantaneous over In 2In 5In 10In current protection(A) B, take UCA as the basis and shift Operating value current to check the Operating zone operating zone Input 30V for UAB Current setting of and current of phase instantaneous over In 2In 5In 10In current protection(A) C, take UAB as the basis and shift Operating value current to check the Operating zone operating zone Under voltage setting 20 40 60 80 (V) Operating value of Set overcurrent under voltage value with 5A, input Setting of negative current 6A sequence voltage(V) 5 10 15 20 Operating value of negative sequence voltage 6.2 Check of inverse time limit over-current protection(IT Overcurrent) Connect as figure 6-1. Put inverse time limit over-current protection in running. Choose a sort of curve in inverse time limit characteristic curve setting（01:Standard inverse time limit;02:Unusual inverse time limit;03:Extreme inverse time limit;04:Long inverse time limit），set inverse time limit constant p 0.50s，inverse time limit current Ip 5A.Inverse time limit settings are in accordance with table as follow. When inverse time limit over-current protection is operated, terminals B23-B24、A17-A18、A19-A20 should be 36 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 connected. Curve The operating current（A） 2Ip(A) 3Ip(A) 5Ip(A) 01:Standard Theoretical operating time（s） 5.105s 3.15s 2.140s inverse Ip=5A  =0.5s The real operating time（s ） ， p 02:Unusual Theoretical operating time（s） 6.750s 3.375s 1.688s inverse Ip=5A  =0.5s The real operating time （s） ， p 03:Extreme Theoretical operating time（s） 13.333s 5.000s 1.667s inverse Ip=5A  =0.5s The real operating time（s） ， p 04:Long inverse Theoretical operating time（s） 60.000s 30.000s 15.000s Ip=5A，p =0.5s The real operating time（s） 6.3 Check of negative sequence over-current protection(NS Overcurrent) The negative sequence current is calculated by protection currents. Connect as figure 6-1. 6.3.1 Negative sequence over-current definite time limit protection Put negative sequence over-current definite time limit protection in running, input three protection currents as negative sequence mode. Set in accordance with the table as follow, take the operating value and keep it in the table. Negative sequence current (A) 0.2In 0.4 In 0.6 In 0.8 In Negative sequence delay (s) 10 5 2 1 Negative sequence current operating value (A) Negative sequence delay operating time (s) 6.3.2 Negative sequence over-current inverse time limit protection Put negative sequence over-current inverse time limit protection in running, input three protection currents as negative sequence mode. Inspect this protection according as over-current inverse time limit protection table. When negative sequence over-current protection is operated, terminals B23-B24、 A17-A18、A19-A20 should be connected. 6.4 Check of overload protection(Overload) Overload protection uses the maximal current to judge, trip or alarm can be chosen， If put overload trip in running, alarm function exits automatically. Connect as figure 6-1, put 37 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 overload alarm in running. Set in accordance with the table as follow, take the operating value and keep it in the table. When overload alarm is operated, terminals B19-20 should be connected. Put overload trip in running, when overload trip is operated, terminals B23-B24、 A17-A18、A19-A20 should be connected. Overload current(A) 5 10 15 20 Overload delay(s) 10 5 2 1 Overload current operating value (A) Overload delay operating value (s) 6.5 Check of zero sequence over-current protection(HV ZS OC) Zero sequence over-current protection has three segments. It can be set and put on/off respectively. These three protections have same principle，take zero sequence over-current protection I as an example to explain. Connect as figure 6-2, put zero sequence over-current protection I in running. MTPR-820Hc I0 D07 B29 Power supply I0’ D08 B30 Figure 6-2 Set in accordance with the table as follow, take the operating value and keep it in the table. When zero sequence over-current protection is operated, terminals B23-B24、 A17-A18、A19-A20 should be connected. Zero sequence 0.20 0.50 1.00 1.50 current setting (A) Operating value 6.6 Check of low voltage side zero sequence over-current protection(UV ZS OC) Connect as figure 6-3，to inspect low voltage side zero sequence over-current protection. 38 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 6.6.1 Low voltage side zero sequence over-current with definite-time delay(UV ZS OC DT) Put low voltage side zero sequence over-current with definite-time delay protection in running, input currents, Set in accordance with the table as follow, take the operating value and keep it in the table. Low-voltage zero 5 10 15 20 sequence current (A) Definite time 10 5 2 1 limit delay (s) Low-voltage zero sequence current operating value (A) Definite time limit delay operating value (s) 6.6.2 Low voltage side zero sequence over-current with inverse-time delay(UV ZS OC IT) Put low voltage side zero sequence over-current with inverse-time delay protection in running, input currents, checkout method refers to inverse time limit over-current protection. MTPR-820Hc I0L D13 B29 Power supply I0L’ D14 B30 Figure 6-3 When low voltage side zero sequence over-current protection is operated, terminals B23-B24、A17-A18、A19-A20 should be connected. 6.7 Check of voltage protection(Voltage Protect) 6.7.1 Check of under-voltage protection(Undervoltage) Under-voltage protection uses the maximal line voltage to judge, it can choose PT failure to block under-voltage protection. Connect as figure 6-4, put under-voltage protection, PT failure alarm and PT failure block in running. 39 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 MTPR-820Hc Ua D15 Ub D16&D17 B29 Uc D18 Power supply B01 Breaker assistant B30 contact B02 Figure 6-4 Set in accordance with the table as follow, take the operating voltage and keep it in the table. When Under-voltage protection is operated, terminals B23-B24、A17-A18、 A19-A20 should be connected. Simulate PT failure, When PT failure happens, Under-voltage protection will be blocked. Under-voltage 95 90 85 80 setting value (V) Under-voltage delay (s) 10 5 2 1 Under-voltage operating value(V) Under-voltage delay operating value (s) 6.7.2 Check of over-voltage protection(Overvoltage) Over-voltage protection uses the maximal line voltage to judge. Connect as figure 6-4, put over-voltage protection in running，and simulate the breaker closed. Set in accordance with the table as follow, take the operating voltage and keep it in the table. When over-voltage protection is operated, terminals B23-B24、A17-A18、 A19-A20 should be connected. Over-voltage 105 110 115 120 setting value (V) Over-voltage delay (s) 10 5 2 1 Over-voltage operating value(V) Over-voltage delay operating value (s) 6.8 Check of body protection(Body Protect) Put heavy gas trip, light gas alarm, over-temperature trip，temperature alarm and 40 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 pressure relief trip in running, connect terminal B01 with the cathode of the DC power supply（Take binary input connecting with DC220V power as an example）,anode connects terminals B07～B11 respectively. When heavy gas trip, over-temperature trip, pressure relief trip protection is operated, terminals B23-B24、A17-A18、A19-A20 should be connected; When light gas alarm, temperature alarm protection is operated, terminals B23-B25 should be connected. 6.9 Check of non-electric quantity protection(Non-electric) Connect as figure 6-5, put non-electric quantity protection in running; take non-electric quantity protection 1 as an example. MTPR-820Hc DCSIn+ D25 B29 Power supply DCSIn- D26 B30 Figure 6-5 Set in accordance with the table as follow, take the operating value and keep it in the table. When the protection is operated, terminals B23-B24、A17-A18、A19-A20 should be connected. Setting value of non-electric 5 10 15 18 quantity 1 current (mA) Delay of non-electric 10 5 2 1 quantity 1 current (s) Non-electric quantity 1 operating value (mA) Non-electric quantity 1 delay operating value (s) 6.10 Check of PT failure and CT failure(PT/CT Failure) Connect as figure 6-6, and also connect the breaker assistant contact, simulate PT failure, high voltage side CT failure or low voltage side CT failure, then the device will send alarm signal, terminals B23-B25 will be closed. 41 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 MTPR-820Hc I a1(Ib1,Ic1) D01(03,05) Ia1’(Ib1’,Ic1’) D02(04,06) Ua D15 B29 Ub D16&D17 Power supply Uc D18 B30 Ia2(Ib2,Ic2) D19(21,23 ) Ia2’(Ib2’,Ic2’) D20(22,24 ) Figure 6-6 6.11 Check of under-frequency unloading protection(Under-frequency) Under-frequency unloading protection’s frequency adopts the frequency of voltage Uab .To avoid burthen feedback，frequency slip block(can put in/out) and low current block are adopted. To avoid mis-operating of under-frequency unloading protection because of voltage declining too fast, it has low voltage block. Connect as figure 6-7 , put under-frequency unloading protection in running. Put slip block in running if measuring slip frequency. When measured the operating value of frequency and delay time, please put slip block out of running, in order to prevent influence of action accuracy. MTPR-820Hc D01 Ia1 D02 B29 Ia1’ Ua D15 Ub Power supply D16&D17 B30 Uc D18 Figure 6-7 Set in accordance with the table as follow, take the operating value and keep it in the table. When under-frequency unloading protection is operated, terminals B23-B24、 A17-A18、A19-A20 should be connected. Under-frequency setting value 49.5 49 48.5 48 (Hz) Under-current setting value (A) 0.5 0.5 1 1 Under-voltage setting value (V) 10 20 30 60 df/dt (Hz/s) 3 4 5 7 Setting of Delay (s) 0.5 1 2 3 42 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Frequency operating value (Hz) Delay time operating value (s) Slip operating value (Hz/s) 6.12 Check of longitudinal differential protection(Diff.Protect) 6.12.1 Checkout of differential instantaneous over-current protection(Inst.Diff.PROT) Connect as figure 6-8; put differential instantaneous over-current protection in running. Set in accordance with the table as follow, take the operating value and keep it in the table. When differential instantaneous over-current protection is operated, terminals B23-B24、A17-A18、A19-A20 should be connected. MTPR-820Hc Ia1(Ib1,Ic1) D01(D03,D05) B29 I a1’(Ib1’,Ic1’) D02(D04,D06) Power supply Ia2(Ib2,Ic2) D19(D21,D23) B30 Ia2’(Ib2’,Ic2’) D20(D22,D24) Figure 6-8 Differential instantaneous over-current setting value (A) 1In 2In 3In 4In Differential instantaneous operating value (A) 6.12.2 Check of percentage differential protection(Per.Diff.PROT) Connect as figure 6-8; put percentage differential protection in running. Set in accordance with the table as follow, take the operating value and keep it in the table. When percentage differential protection is operated, terminals B23-B24、A17-A18、 A19-A20 should be connected. Add some content of second harmonic to high voltage side currents（Add according as the content of second harmonic in transformer excitation surge, which producing when the transformer unload closing）.It will block percentage differential protection when the ratio of second harmonic content and differential current is greater than the setting value of second harmonic braking coefficient. 43 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Rated current of motor(A) In In In In Percentage differential threshold current Ido(A) 0.4 In 0.4 In 0.4 In 0.4 In Percentage differential braking inflexion point 1 A 0.2 In 0.2 In 0.2 In 0.2 In （ ） Percentage differential braking inflexion point 2 A 0.4 In 0.4 In 0.4 In 0.4 In （ ） Percentage braking coefficient 1 0.3 0.3 0.4 0.4 Percentage braking coefficient 2 0.5 0.5 0.6 0.6 Second harmonic braking coefficient 0.1 0.15 0.2 0.25 Differential operating value(A) 6.12.3 Check of differential over limit alarm(Diff.C OL Alarm) Connect as figure 6-8; put differential over limit alarm in running. Set in accordance with the table as follow, take the operating differential current value and keep it in the table. When the operating condition is satisfied, the device reports differential over limit alarm and turn on alarm signal. Differential over limit alarm current value 0.4 In 0.6 In 0.8 In In Differential over limit alarm current operating value (A) 6.13 Operate Circuit Break Operate circuit break output be controlled by software.When this function be selected. Connect the negative terminal to terminal A11 (-KM), positive terminal to terminal A12. Connect the negative terminal to terminal A05(TWJ),A04(HWJ) to make HWJ or TWJ action.The device monitoring operate circuit normatlity.When you turn off A05(TWJ),A04(HWJ) to connect the negative terminal or connect the negative terminal both of them, The operate circuit break will action after delay time. Measuring terminals B23-B26 should be shorted. 44 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Addendum 1: Terminal diagram of the device I/O POWER CPU A C Input comon A01 Common point- B01 point- A02 Trip position B02 Breaker NET A03 Closure position B03 Trolley Run A04 Closed position Trolly Testmonitoring B04 A05 Trip position B05 Earth Switchmonitoring A06 Manual closinginput B06 Spring A07 Closed coil B07 Heavy Gas A08 Manual B08 Light Gas NET2tripping input A09 PROT tripping B09 Over-T Tripinput A10 Trip coil B10 Temp. Alarm A11 KM B11 Input 10 A12 ＋KM B12 Input 11 A13 B13 Input 12 A14 Remote controlcommon terminal B14 Input 13 A15 Remote control Run Light closing contact B15 Input 14 A16 Remote controltrip contact B16 Input 15 DEBUG A17 PROT Output 1 B17 Input 16 C01 GPS-A A18 PROT Output 1 B18 Input 17 C02 GPS-B A19 PROT Output 2 B19 Input 18 C03 A20 PROT Output 2 B20 Input 19 C04 COM1A A21 Output 3 B21 Overhaul C05 COM1B A22 Output 3 B22 （+24V） C06 Shielded ground A23 Output 4 B23 Common terminal C07 COM2A A24 Output 4 B24 Trip Signal C08 COM2B A25 Output 5 B25 Alarm Signal C09 DCS1+ D25 A26 Output 5 B26 Operate CIR C10 DCS1- D26 A27 Output 6 B27 Power off C11 DCS2+ D27 A28 Output 6 B28 Power off C12 DCS2- D28 A29 Output 7 B29 Power 1.Ia1,Ib1,Ic1 are protection curents at high-voltage A30 Output 7 B30 Power side.2.Ia2,Ib2,Ic2 are protection curents at low-voltage side. A31 B31 3.IO,IOL are zero-sequence curents at high-voltage andOutput 8 low-voltage side. A32 B32 Shielded ground 4.IA,IC are measuring curents.Output 8 5.Uab,Ubc are voltages at high-voltage side. 6.DCSIn is 2-way 420mA DC input. 7.Net1,Net2 are ethernet interfaces, COM1,COM2 are 485 interfaces. 8.If +24V on power board is standard configuration or not,it is used as an input power suply only when using internal 24V. Figure 1 Terminal diagram of MTPR-820Hc 4 ～ MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 transformer protection and monitoring device Addendum 2: Typical wiring diagram of the device 5 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Figure 2 Typical wiring diagram of MTPR-820Hc transformer protection and monitoring device Addendum 3: Operating circuit of MXPR-800Hc series device Traditional operating circuits are started by current, while a voltage maintaining circuit realizes electric trip prevention. An anti-trip relay will be selected depending on the current of the trip/closing circuit of the circuit breaker. However, this has poor generality and can hardly be realized for circuit breakers with low trip and closing currents (such as 10KV circuit breakers from AEG Company in Germany, whose trip and closing currents are not greater than 0.2A). To simplify wiring and design finalization, and to improve the generality of the product, we offer a new operating circuit shown below. 6 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Schematic diagram of operating circuit 7 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Permanent magnetic breaker operating circuit In the diagram, When the SA is connected to 5,6 contact，The SA is at the “Remote” position, the power of the remote control circuit will be switched on, closing and trip with remote control. when the SA is connected to 9,10 contact, The SA is in manual closing state. when the SA is connected to 1,2 contact, The SA is in manual Tripping state. 8 MTPR-820Hc transformer protection and monitoring device WLD[K]-JY-312-2018 Note: The dotted line outlines the internal circuit of the protection device. All our devices marked with “anti-trip circuit” are designed on this operating circuit. Terminals Tn1, Tn2 corresponding to the protection relay Jn are determined by the corresponding protection output control word. Jn can be any one or more of Protection outputs 1-8. Whether local or remote control, the precondition to jump is Terminal A06 of the device is always connected to +KM. After manual or remote controlled closing, if a short-circuit fault occurs, the protection will operate to trip the circuit breaker. Though Terminal A06 of the device is connected to +KM, the closing circuit is disconnected by TBJ1 and will not be closed again. In this way, circuit breaker jump is effectively prevented. 9