User’s manual of MGPR-820Hc generator backup protection measuring and control device V1.03

Zhuhai Wanlida Electrical Automation Co., Ltd. http://www.zhwld.com User’s manual of MGPR-820Hc generator backup protection and monitoring device Prepared by： Li Chang Wen Proofed by： He Wen hui Approved by：Lin Cun li Document No.: WLD [K]-JY-318-2018 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 MGPR-820Hc is the microcomputer generator backup protection and monitoring device, the structure type of MGPR-820Hc series protection is Hc, MGPR-820Hc supports over-current protection of phase A, B, C. also supports two-phase current protection. When ordering, please statements. 2. Standards referenced General specification for static protection, security and automatic equipment, DL 478-2010 Technical code for relaying protection and security automatic equipment GB/T 14285-2006 Protective relay and automatic equipment design rules of power equipment GB50062-2008 Transformer substation correspondence network and system DL/T 860.5-2006 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 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, digital tube displays primary measuring result in cycle, 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 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. 2 Foreword  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 Foreword 1. Product description 1.1 Scope of application MGPR-820Hc microcomputer generator backup protection and measuring device applies to medium-small capacity generator protection. The device, MGPR-810Hc microcomputer generator differential protection device, MGPR-850Hc microcomputer generator grounding protection device together constitute a complete generator protection. 1.2 Function and specification 1.2.1 Protective function  Composite voltage block over-current protection  Longitudinal zero sequence over-voltage protection  Loss-of-excitation protection  Low-voltage protection  Over-voltage protection  Over-load protection  Low-frequency protection  High-frequency protection  Reverse power protection  Negative sequence over-current protection  Negative sequence inverse time over-current protection  PT failure alarm  Voltage-lower-than-5% protection  Voltage-higher-than-90% protection  Zero sequence over-current protection 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 4 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 (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 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 4 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018  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 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: 5 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 　 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%, 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. 6 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 2. Function of device 2.1 Two-section composite voltage block (memory) over-current protection The device set up two-section over-current protection. Each has two time delays, usually t1 acting on the disconnection de-excitation, t2 acting the role of full stop. By setting the control word, it can be set that whether each of the protection is ON or OFF and whether it is blocked by low-voltage or negative sequence voltage, whether it is equipped with over-current memory etc. The protection may be selected to be controlled with hard strap. Protection logic is shown in Fig.2-1. Memory ON/OFF Ijy>Iset 20s ≥1 I>Iset Over-current ON/OFF t1/0 Output sequence Low voltage lock & ON/OFF Low voltage t2/0 Output sequence component operation U2 lock ≥1 ON/OFF U2 component operation Fig.2-1 Protection logic of composite voltage block (memory) over-current protection Composite voltage component is consist with the negative sequence voltage U2 (over-voltage) 7 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 and phase to phase low-voltage U< ( minimum of the three line voltages) components, used to block over-current protection in a variety of conditions. When the negative sequence voltage U2 or low-voltage U< meets, the over-current protection can be set ON, or over-current protection is blocked. When PT is failure and PT failure block is set ON, composite voltage element is blocked. So as to meet the protection requirement of self-excitation generator, the protection is equipped with over-current memory, when composite voltage and over-current element act at the same time, system for the application of the protection requirements, the over-current protection with memory function, when the composite voltage components and over-current components operate at the same time, the over-current element will return after 20s memory which begins from there has the over-current current, in order to guarantee the reliability of the protection, the function is equipped with soft strap and can be set ON of OFF. 2.2 Longitudinal zero sequence over-voltage protection For generator which is equipped with PT with longitudinal zero sequence, the protection is blocked by the negative-sequence directional component and PT failure, the negative sequence direction maximum sensitivity angle is negative 90 degrees, protection logic is shown in Fig.2-2. Uz0>Uset Negative sequence Protection ON/OFFcomponent operation & Tset Output sequence Block ON/OFF PT failure Fig.2-2 Protection logic of longitudinal zero sequence over-voltage protection 2.3 Loss-of-excitation protection The device is equipped with 2-section loss-of-excitation protection, fault of the excitation system of generator will lead to low excitation or loss-of-excitation, and will make generator out of step from the system, and this is great harm to generator and power system safety. The protection is judged by static stability impedance circle and asynchronies impedance boundary circle. The protection can be selected to be controlled by hard strap. The protection logic is as Fig. 2-3, Fig.2-4. When |Z-j(XB+Xst)/2|<|j(XB-Xst)/2| meets, at the mean time it is below 190 degree reactance and 350 degree reactance line, static stability impedance component operates; when |Z-j(XA+XB)/2|<|j(XA-XB)/2| meets, loss-of-excitation impedance component operates. The protection logic of loss-of-excitation is shown in Fig.2-5. 8 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Fig.2-3 Static stability impedance circle Fig.2-4 Asynchronous impedance circle Static stability impedance Component operation & ON/OFF Low voltage Tset I Loss-of-excitation I component operation output U2> & UAB<30V ON/OFF & Tset II Loss-of-excitation II Asynchronous impedance component operation output Fig.2-5 Loss-of-excitation protection logic 2.4 Under-voltage protection The device is equipped with low-voltage protection, it is a three-phase protection, it is judged by the maximum of the phase to phase voltages, when the breaker is at close position, and the maximum phase to phase voltage is lower than the setting, the protection operates, when PT failure occurs, it can be selected that it blocks the low-voltage protection. The protection logic is as Fig.2-6. 9 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Low voltage ON /OFFUmax <Uset Breaker closure & position Tset Output sequence PT failure block ON /OFF PT failure Fig.2-6 Low-voltage protection logic 2.5 Over-voltage protection The device is equipped with over-voltage protection, it is a three-phase protection, it is judged by the maximum of the phase to phase voltages. The protection can be selected whether to be controlled by hard strap. Protection logic is as Fig.2-7. Umax>Uset Protection ON/OFF Tset Output sequence Fig.2-7 Over-voltage protection logic 2.6 Over-load protection The device is equipped with over-load protection, it is a three-phase protection, it is judged by the maximum of phase currents, the protection logic is as Fig.2-8. Protection ON/OFF Imax >Iset Tset Output sequence Fig.2-8 Over-load protection logic 2.7 Under-frequency protection The frequency is calculated by software, UAB is used to calculate the frequency, When the condition (Y-Y connect mode: line voltage UAB is higher than 70V or UAB>20V at the same time UA>15V and UB>15V; V-V connect mode: line voltage UAB is higher than 25V) open low-frequency protection, low-frequency protection logic is shown in Fig.2-9. F <Fset & Tset Output sequence Breaker closure position Fig.2-9 Low frequency protection logic 10 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 2.8 Over-frequency protection The frequency is calculated by software, UAB is used to calculate the frequency, When the condition (Y-Y connect mode: line voltage UAB is higher than 70V or UAB>20V at the same time UA>15V and UB>15V; V-V connect mode: line voltage UAB is higher than 25V) open high-frequency protection, high-frequency protection logic is shown in Fig.2-10. F >Fset & Tset Output sequence Breaker closure position Fig.2-10 High-frequency protection logic 2.9 Reverse power protection This device is equipped with reverse power protection, primarily for the protection of steam turbine, when the main valve is closed or machine furnace protection operated and turned off the main valve while the output breaker is not tripped, the generator is turned into a motor running, it is to absorb active power from the power grid, which can cause a steam turbine accident. When the condition meets it trips. Protection logic is shown in Figure 2-11. In the protection data, it shows the absolute value of reverse power, when running normally it displays zero. Protection ON/OFF Tset Output Pn>Pset sequence Fig.2-11 Reverse power protection logic 2.10 Negative sequence over-current protection The device is equipped with two-section negative sequence over-current protection; negative sequence over-current protection mainly reflects the over-load of rotor surface. Protection logic is shown in Figure 2-12. The protection may be chosen to be controlled by the hard strap. Protection ON/OFF Tset Output I2>Iset sequence Fig.2-12 Negative sequence over-current protection 11 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 2.11 Negative sequence inverse time over-current protection The negative sequence over-current (inverse time) is determined by generator rotor surface withstand negative over-current. The relationship of generator short-term negative sequence over-current withstands current and the allowed duration is as follows: Which： I 2  ――normalized value of generator negative current; I * ――normalized value of long-term allowed negative current; ――The time constant of rotor surface withstand negative sequence current I/Ie Iop/Ie 0 T1 T2 t Which： Iop――Negative inverse time startup current of generator Ie ――Rated current of generator T1――Upper limit of inverse time protection operation time T2――Lower limit of inverse time protection operation time Fig.2-13 Negative sequence inverse time over-current protection logic The protection can be selected to be controlled by hard strap. 2.12 PT failure According to wiring in different ways, a PT failure criterion is also different. If PT failure block is set ON, if the PT breaks, low-voltage protection and composite voltage component are blocked. If no special instructions, no current value is 0.1In (In will be 5A or 1A). PT failure criterion is as follows:  V-V wiring method Maximum of phase current, being lower than maximum load current (over-load current setting). ① Maximum of phase to phase voltage is lower than 30V, and one of the phase current higher than 0.1In; 12 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 ② Negative sequence voltage being higher than 8V. When one of the conditions above meets, PT failure is reported after time delay (settable), and returns after it disappears.  Y-Y wiring method Maximum of phase current, being lower than maximum load current(over-load current setting). ① When |Ua+Ub+Uc|>7V, absolute difference between the highest line voltage and the lowest being higher than 18V, it is supposed that one or two phases PT fail; ② When |Ua+Ub+Uc∣> 7V, the lowest line voltage being lower than 18V; it is used to detect two-phase failure. ③ When MAX{Uab，Ubc，Uca}<7V and one of the phase current being higher than 0.1In, it is supposed that three-phase of the PT fail. When one of the conditions above meets, PT failure is reported after time delay (settable), and returns after it disappears. Max{Ia，Ib，Ic}<Igfh MaxU<30V Max{Ia,Ib,Ic}>0.1*In & ≥ PT failure U2>8V ON/OFF & & V-V connection    ≥ | U a  U b  U c | 7V | MaxU-MinU|>18V &    TPT PT failure operation | U a  U b  U c | 7V & information MinU<18V & ≥ MaxU<7V MaxU=Max(Uab,Ubc,Uca) Max{Ia,Ib,Ic}>0.1*In & MinU=Min(Uab,Ubc,Uca) Fig.2-14 PT failure operating logic 2.13 Voltage-under-than-5% protection The device is equipped with voltage-lower-than-5% indication, it is a three-phase protection, it is judged by the maximum of phase to phase voltage, if the highest phase to phase is lower than setting, while current being lower than 1.2In, the protection operates, when PT failure occurs, it can be set that the protection be blocked. Protection logic is shown in Figure 2-15. 13 PT failure components User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Fig.2-15 Voltage-lower-than-5% protection logic 2.14 Voltage-over-than-90% protection The device is equipped with voltage-higher-than-90% indication, it is a three-phase protection, it is judged by the maximum of phase to phase voltage, protection logic is shown in Fig.2-16. Protection ON/OFFUmax>Uset 0.0S Output sequence Fig.2-16 voltage-higher-than-90% protection logic 2.15 Zero sequence over-current protection This device is equipped with zero sequence over-current protection, using special zero-sequence CT, can accurately detect primary zero-sequence CT current, when the zero-sequence current exceeds the setting value delay meets, it operates. Protection ON/OFF Io>Is>et Tset Output sequence Fig.2-17 Zero sequence over-current protection logic 2.16 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. 2.17 Integral energy The software accumulates active and reactive powers into active and reactive energy in real time. 2.18 Fault recorder See the communication coding table for the protection voltage and current waveform data collected by the recording unit. 2.19 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 14 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 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. 2.20 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. 2.21 GPS clock synchronization The GPS clock synchronization signal is input as rs485 differential voltage, the device is able 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. 2.22 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. 15 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 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） Set step :1 (factory default 1) NET Protocol 0-2 （0-Quit;1-IEC104; 2-IEC61850） Set step :1 (factory default 0) RS485 Protocol 0-2 （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 192.168.0.252） 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 192.168.0.253） IP) Coefficient of transformer PT Ratio 1-1500 Set step: 1 (factory default 100) CT Ratio 1-5000 Set step: 1 (factory default 100) 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:Ia,2:Ib, 3:Ic,4:I0, 5:Ispr,6:IA,7:IB,8:IC,9:Ua,10:Ub,11:Uc,12:Uz0 Wave Record 0-1 Set step:1（factory default 0）00：Off;01：On Hard Plate 0-1 Set step:1（factory default 0）00：Off;01：On 16 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Parameter Range Description Earth Mode 0-1 00：No Earth, 01：Earth(major grounding), Remote communication ack 10-100ms Set step: 1 (factory default 40ms) time (input ack time) Measure IB compound(IB 0-1 Set step: 1 (factory default 0)00：exit；01：on 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 quantities: 0: No D/A output 1:IA, 2:IB, 3:IC, 4:Ua, 5:Ub, 6:Uc, 7:Uab, 8:Ubc,9:Uca,10:P,11:Q Voltage reference quantity: 0-120V corresponding to 4mA-20mA. Rating 5A： DA1~2 Channel Current reference quantity: 0-6A corresponding to 0-11 Selection 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 0.05-1.5 Adjust D/A channel 1～2（4-20mA） parameters Factor Integral Energy 0-4294967.295k Positive active energy Wh 0-4294967.295k Set step:0.001 Positive reactive energy vh Press “confirm” for reservation, and revert to last menu. 0-4294967.295k Negative active energy Wh 17 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Parameter Range Description 0-4294967.295 Negative reactive energy kvh Channel factor setting(Channel Coef.) Set step:0.001（factory default 1） Channel data 1～12 0.5-5 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 0.5-5 Channel data 13,14 are corresponded to channel factor of DC quantity 1,2. 3.2 List of setting values Setting value Range Description Low-voltage block ON/OFF 1/0 （Undervolt. Lock 1/0：ON/OFF(factory default OFF) ） Negative sequence voltage block 1/0 ON/OFF（NS Voltage Lock 1/0：ON/OFF(factory default OFF) ） Memory 1/0 1/0：ON/OFF(factory default OFF) Overcurrent I 1/0 1/0：ON/OFF(factory default OFF) Overcurrent II 1/0 1/0：ON/OFF(factory default OFF) Longitudinal zero sequence over-voltage protection O（L.ZS 1/0 1/0：ON/OFF(factory default OFF) Voltage） Section I loss-of-excitation protection 1/0 Excit-loss I 1/0：ON/OFF(factory default OFF) （ ） Section II loss-of-excitation protection 1/0 Excit-loss II 1/0：ON/OFF(factory default OFF) （ ） Undervoltage 1/0 1/0：ON/OFF(factory default OFF) Overvoltage 1/0 1/0：ON/OFF(factory default OFF) OverLoad 1/0 1/0：ON/OFF(factory default OFF) Under-frequency 1/0 1/0：ON/OFF(factory default OFF) Over-frequency 1/0 1/0：ON/OFF(factory default OFF) Reverse Power 1/0 1/0：ON/OFF(factory default OFF) Section I negative sequence 1/0 over-current protection (NS OC I) 1/0：ON/OFF(factory default OFF) 18 Protection on/off word User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Setting value Range Description Section II negative sequence 1/0 over-current protection (NS OC II) 1/0：ON/OFF(factory default OFF) Negative sequence inverse time 1/0 over-current protection (NS OC IT) 1/0：ON/OFF(factory default OFF) PT Failure Alarm 1/0 1/0：ON/OFF(factory default OFF) PT failure Lock 1/0 1/0：ON/OFF(factory default OFF) U<5% 1/0 1/0：ON/OFF(factory default OFF) U>90% 1/0 1/0：ON/OFF(factory default OFF) ZS Overcurrent 1/0 1/0：ON/OFF(factory default OFF) Operate circuit break 1/0 1/0：ON/OFF(factory default OFF) Two-section over-current protection Undervoltage 10－90V Set step:0.01V(factory default 50V) NS Voltage 2-30V Set step:0.01V(factory default 30V) OC 1 current 0.5-100A Set step:0.01A(factory default 100A) OC 1 T1 0-15s Set step:0.01S(factory default 15s) OC 1 T2 0-15s Set step:0.01S(factory default 15s) OC 2 current 0.5-100A Set step:0.01A(factory default 100A) OC 2 T1 0-15s Set step:0.01S(factory default 15s) OC 2 T2 0-15s Set step:0.01S(factory default 15s) Longitudinal zero sequence over-voltage protection Zero sequence over-voltage setting(ZS OV Value) 3－30V Set step:0.01V(factory default 30V) Zero sequence over-voltage delay(ZS OV Time) 0.1-15s Set step:0.01S(factory default 15s) Loss-of-excitation protection Excit-loss Xst 1-100Ω Set step:0.01Ω(factory default 10Ω) Excit-loss XA 1-80Ω Set step:0.01Ω(factory default 10Ω) Excit-loss XB 10-500Ω Set step:0.01Ω(factory default 60Ω) Set step:0.01V(factory default 60V) Excit-loss UV 60-100V Excit-loss NSV 2-30V Set step:0.01V(factory default 30V) Excit-loss I Time 0.1-15s Set step:0.01S(factory default 15s) Excit-loss II Time 0.1-15s Set step:0.01S(factory default 15s) Under-voltage protection Undervolt. Value 10－100V Set step:0.01V(factory default 60V) Undervolt. Time 0.1-50s Set step:0.01S(factory default 50s) Over -voltage protection 19 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Setting value Range Description Overvolt. Value 90－150V Set step:0.01V(factory default 150V) Overvolt. Time 0.1-50s Set step:0.01S(factory default 50s) Over-load protection Overload Current 0.2-100A Set step:0.01A(factory default 100A) Overload Time 0.5-100s Set step:0.01S(factory default 100s) Under-frequency protection Under-freq.Value 45-49.5Hz Set step:0.01Hz(factory default 45Hz) Under-freq.Time 0.2-60s Set step:0.01S(factory default 60s) Over -frequency protection Over Freq.Value 50.5-55Hz Set step:0.01Hz(factory default 55Hz) Over Freq.Time 0.2-60s Set step:0.01S(factory default 60s) Reverse power protection Reverse P Value 0-200W Set step:0.01W(factory default 200W) Reverse P Time 0-600s Set step:0.01S(factory default 15s) Negative sequence over-current protection NS OC I Value 0.2-10A Set step:0.01A(factory default 10A) NS OC I Time 0-15s Set step:0.01S(factory default 15s) NS OC II Value 0.2-10A Set step:0.01A(factory default 10A) NS OC II Time 0-15s Set step:0.01S(factory default 15s) Negative sequence inverse time over-current protection Rated current 0-10A Set step:0.01A(factory default 5A) NS IT Constant 1-90 Set step:0.01(factory default 90) NS IT Start C 0-10A Set step:0.01A(factory default 5A) All.L. NS C 0-10A Set step:0.01A(factory default 5A) IT Upper Limit T 0-10s Set step:0.01S(factory default 10s) IT Lower Limit T 10-600s Set step:0.01S(factory default 600s) PT failure alarm protection PT Failure Time 0.2-60s Set step:0.01S(factory default 60s) Voltage-lower-than-5% protection U<5% Value 0-20V Set step:0.01V(factory default 5V) Voltage-higher-than-90% protection U>90% Value 80-120V Set step:0.01V(factory default 95V) Zero sequence over-current protection ZS OC Value 0-100A Set step:0.01A(factory default 2A) 20 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Setting value Range Description ZS OC Time 0.5-100s Set step:0.01S(factory default 100s) Operate circuit break Operate CIR Time 0.00-100.00S 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: Analog quantity Analog quantity Test method terminal name Protective Phase A Add double the rating, displayed deviation not Terminals D01、D02 current (Ia) exceeding 1% Protective Phase B Add double the rating, displayed deviation not Terminals D03、D04 current (Ib) exceeding 1% Protective Phase C Add double the rating, displayed deviation not Terminals D05、D06 current (Ic) exceeding 1% Zero sequence Terminals D07、D08 Add 1A, displayed deviation not exceeding 0.2% current (I0) Measured Phase A Terminals D11、D12 Add rating, displayed deviation not exceeding 0.2% current (IA) Measured Phase B Add a single rating, displayed deviation not exceeding Terminals D13、D14 current (IB) 0.2% Measured Phase C Add a single rating, displayed deviation not exceeding Terminals D15、D16 current (IC) 0.2% Phase A voltage Terminals D17、D18 Add 50V, displayed deviation not exceeding 0.2% (Ua) Add 50V 50Hz, displayed deviation not exceeding Uab System frequency F ±0.02Hz Phase B voltage Terminals D19、D20 Add 50V, displayed deviation not exceeding 0.2% (Ub) Phase C voltage Terminals D21、D22 Add 50V, displayed deviation not exceeding 0.2% (Uc) Zero sequence Terminals D23、D24 Add 50V, displayed deviation not exceeding 0.2% voltage (Uz0) 21 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Analog quantity Analog quantity Test method terminal name 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 D11、 D12;D15、D16add Add a single rating to current and 100V to line voltage current by polarity;D17、 3-phase active Alter phase angle, displayed power deviation not D18;D19、D20;D21、 power exceeding 0.5% D22 add voltage by polarity Terminals D11、 D12;D15、D16add Add a single rating to current and 100V to line voltage current by polarity;D17、 3-phase reactive Alter phase angle, displayed power deviation not D18;D19、D20;D21、 power exceeding 0.5% D22 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 （Should be connected to DC220V 110V DC can be applied, connect the or DC110V negative terminal to terminal B01, positive negative terminal of external power terminal to terminal B02～B21, in [Binary supply） input] menu in the [Run States], the status B02 Breaker position of binary input can be seen. B03 Trolley run position The device also has a 24V DC supply, B04 Trolley test position if it is used, terminal B22 can be connected B05 Earth switch position to terminal B02～B21, in [Binary input] B06 Spring is not energized menu in the [Run States], the status of B07 Input 6 binary input can be seen. B08 Input 7 “Manual Trip”, “Manual Close” , 22 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 B09 Input 8 “TWJ” , “HWJ” are taken from the operate B10 Input 9 circuit to monitoring the status. B11 Input 10 Connect the negative terminal to B12 Input 11 terminal A11 (-KM), positive terminal to B13 Input 12 terminal A06 (Manual Close), A08(Manual B14 Input 13 Trip),in [Binary input] menu in the [Run B15 Input 14 States], the status of binary input can be B16 Input 15 seen. B17 Excit-loss Plate Connect the positive terminal to B18 OV Plate terminal A12(+KM), negative terminal to terminal A05(TWJ),A04(HWJ),in [Binary B19 NS Plate input] menu in the [Run States], the status B20 OC Plate of binary input can be seen. B21 Overhaul Connect the negative terminal to Binary input Manual Trip terminal A11(-KM),positive terminal to of Operate Manual Close terminal A14(Remote common ),in [Binary circuit HWJ input] menu in the [Run States], the TWJ Remote/Local status of binary input can be Remote/Local seen. B22 Positive terminal of internal 24V Please note about the binary input power supply voltage upon ordering, it is set to DC220V by default. 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 B23-B25 Alarm Signal B23-B26 Operate CIR Signal A17-A18 Spare Trip Node A19-A20 Trip Main Switch Select open and close menu, use “+”, A21-A22 Field-Dis.Switch “-” key to operate and test the A23-A24 C.st.va./gu.bl. corresponding terminals. A25-A26 U Under 5% A27-A28 U Over 90% A29-A30 Output 7 23 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 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, fault (of the device), reclosure, 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 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. 24 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 01.Run States -1/8- Main menu 05.Report Dis. -1/5- Protection Data Trip Report Measuring Data 01.Run Status Binary Report Binary Input Event Report Soft Strap Print Report Pulse Energy 02.Run Parameters Clear Report Harmonic Data DC Input Data 03.Setting View 06.Parameters -1/11-Comm. Setting AD Volt.Data 04.Setting Value Transformer Coe. B. Parameters 02.Run Param. -1/3- D/A Setting  Setting Zone No. 05. Report Manage Pulse Energy PROT On/Off 06. SYS Parameters Channel Coe. Clock Setting 07.Device Test 07.DeviceTest. -1/2- 03.Setting View-1/17-  Output Test  Overcurrent L.ZSVoltage 08.PassWord Lamp Test Excit-loss Undervoltage 09.Version Info. 08.Password □□□□ ...... 10.Comm Test 04.Setting Value-1/17- PROT AUTO DEV V2.00  Overcurrent Type:MGPR-820Hc L.ZSVoltage 10.Comm test ID:□□.□□.□□ Excit-loss Input Test CRC:□□□□□□□□ Undervoltage Measure Test Date:20XX-XX-XX ...... SOE Test  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: PROT Data -1/15- Ia = □□□·□□ A 000.0° Protection CT secondary current value Ib = □□□·□□ A 000.0° Ic = □□□·□□ A PT secondary line voltage value 000.0° Uab = □□□·□□ V 000.0° Zero sequence current Ubc = □□□·□□ V 000.0° Iab current Uca = □□□·□□ V 000.0° Negative sequence current I0 = □□□·□□ A Iab = □□□·□□ A I2 = □□□·□□ A 25 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Meas. Data -1/9- IA = □□□·□□ A 000.0° IB = □□□·□□ A 000.0° Measuring CT secondary current value IC = □□□·□□ A 000.0° Ua= □□□·□□ V 000.0° Ub= □□□·□□ V 000.0° PT secondary phase voltage value Uc= □□□·□□ V 000.0° P = □□□□·□ W Converted to PT, CT secondary active power Q= □□□□·□ var Converted to PT, CT secondary reactive power Cosφ = □·□□□ Cosine function for included angle of voltage 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 Binary Input -1/25- is at open position. Break :□ Note: The position of the breaker relates to protection logic, with fixed position. Trolley Run :□ When Closed, trolley at running position Trolley Test :□ When Closed, trolley at test position Earth Switch :□ Spring :□ When Closed, earth switch at closed position Input 6 :□ When Closed, energy storage not completed Input 7. :□ Input 8 :□ Description varies with model, see corresponding terminal Input 9 :□ diagram for details Input 10 :□ ......  Note: 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. Soft Strap -1/23- Undervolt.Lock Off NS Voltage Lock Off Current Memory Off OvercurrentⅠ Off OvercurrentⅡ 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 26 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Harmonic Data -1/10- 2nd ： □□□·□□% 3rd ： □□□·□□% 4th ： □□□·□□% 2~11 harmonics for which analog channels 5th ： □□□·□□% ...... have been selected in system 11th ：□□□·□□% DC Input Data -1/2- DC1 □□□·□□mA External DC input 4~20mA (2-way) ： DC2：□□□·□□mA AD Volt. Data -1/2- AD1：□□·□□□V AD Voltage Check 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 -1/23- Parameter Modify Undervolt.Lock On Off ◇Enter ◆Cancel Press “+”, “-” keys to select the protection function On or Off. The interface will eject the window as right chart show when you press the “Enter” key. Move the cursor to the 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 “Cancel” key is pressed, the protect plate status setting will be cancelled and the menu will return 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 Clock setting appear. Move the cursor to the desired position for modification 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 27 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 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 Year, month, day, hour, minute, second and 20□□-□□-□□ 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 ……  System parameters After entering the [SYS Parameters] menu, the correct password is required to enter the [SYS Parameters] menu. It displays the following: Parameters -1/11- Comm. Setting Transforrmer Coe. B. Parameters D/A Setting Pulse Energy Channel Coef. 28 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018  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;03：19.2KB;04： IP Address □□□ □□□ □□□ □□□ 38.4KB;05：115.2KB . . . SNTP Address □□□. □□□. □□□. □□□ K W Default For Ethernet communication □□□. □□□. □□□. □□□ 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) B.Parameters: -1/12- Rating Current □□ Setting the CT secondary current rating 00: 5A. 01: 1A CT Wiring Mode □□ 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 29 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 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 Remote Trip Press “Enter” key Remote Close Spare Trip Node On Off Trip Main Switch Note: Field-Dis.Switch Node:A14,A15 Open …… Press “Cancel” key Operate All (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.  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 pressing the ““, “” keys, Input password modify to the desired password with the “+”, “-” keys. Press the 0 0 0 0 “Enter” key to enter the new password 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. PROT AUTO DEV V2.00 Type:MGPR-820Hc ID:□□.□□.□□ CRC:□□□□□□□□ Date:20XX-XX-XX 30 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Note: For a corresponding nonstandard model, the device’s displayed Type does have to be changed.  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 Check of over-current protection Over-current protection is consisted of 2 sections, and they are based on the same principles, take the example of section I over-current protection. Wire as Fig.6-1, and set section I over-current protection to ON. If hard strap is used, the hard strap of the protection must be set ON. MGPR-820Hc Ia(Ib、Ic) D1(3,5) Ia’(Ib’、Ic’) D2(4,6) B29 Ua D17 Power supply Ub D19 Uc D21 B30 Ua’(Ub’、Uc’) D18(20,22) Fig 6-1 Test according to the method below, and test the operating current, take down the data in the table below, when in operation, the corresponding relay should be closed. 6.1.1 Test of common over-current protection Set section I over-current protection to ON, set low-voltage, negative sequence voltage and memory function to OFF. Set and take down the data according to Tab.6-1, and test the operating current. When in operation, the relay according to over-current output control word should be closed. Tab.6-1 Over-current setting(A) 5.00 10.00 20.00 Add current of phase A Operating value(A) Error (%) Over-current setting (A) 5.00 10.00 20.00 Add current of phase B Operating value (A) Error (%) Over-current setting (A) 5.00 10.00 20.00 Add current of phase C Operating value (A) Error (%) 31 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 6.1.2 Test of under-voltage-over-current protection Set low-voltage function to ON. When testing, first add three-phase symmetric voltage, while line voltage must be higher than low-voltage setting; than, add fault current (higher than setting); than turn down the voltage, until the protection operates. The line voltage read is the operating value. Set and take down the data according to Tab.6-2, and test the operating voltage. Tab.6-2 Low-voltage setting(V) 30.00 60.00 90.00 Operating value(V) Error 6.1.3 Memory over-current protection Set memory function to ON, set section I over-current delay between 4~8 seconds, when testing, add three-phase symmetric voltage, and let current and voltage meet operating criteria, before protection operates, cut the current, the protection will operate after delay setting. Take down protection operating time. 6.1.4 Test of negative sequence voltage component Set low-voltage, negative sequence voltage and sectionⅠ over current to on, and set low-voltage setting value as 10V. When testing, make the current higher than the setting value, add three phase in negative sequence, keep increasing voltage till protection operates. Set and take down the data according to Tab 6-3, and test the operating negative sequence voltage Tab 6-3 Negative sequence voltage setting(V) 6.00 10.00 20.00 Operating value (V) Error (%) 6.2 Check of longitudinal zero sequence over-voltage protection MGPR-820Hc U z 0 D 2 3 B 2 9 Power supply Uz0’ D24 B30 Fig 6-2 Wire according to Fig 6-1 and Fig 6-2. Put longitudinal zero sequence over-voltage to on. Keep the negative sequence current phase lag the negative sequence voltage by 90 degrees. Add 32 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 negative sequence current, negative voltage and zero sequence voltage till protection operates, terminals should be connected. Set and take down the data according to Tab 6-4, and test the operating voltage. Tab 6-4 Zero sequence over-voltage setting (V) 5 10 15 Operating value (V) Error (%) 6.3 Check of loss of excitation protection Set protection to on. If start hard strap function, body protection hard strap should be put to on. 6.3.1 Test of steady state impedance components Wire as Fig 6-1. Calculate impedance using vector Uab and Iab. When testing, add three phase symmetric voltage and current. Set Xst as 5Ω，XB as20Ω, low- voltage as 100V, negative sequence voltage as 20V. For this setting, operating scope of the circle is from -170°to -10°theoretically, which is shown as Fig6-3. The theoretical values of all the points to be tested are as follows: Ia ahead Ua 15°，∣Z∣=12.12Ω； Ia ahead Ua 25°，∣Z∣=13.66Ω； Ia ahead Ua 50°，∣Z∣=17.28Ω； Ia ahead Ua 70°，∣Z∣=19.28Ω； Ia ahead Ua 90°，∣Z∣=20.00Ω； Ia ahead Ua 110°，∣Z∣=19.28Ω； Ia ahead Ua 130°，∣Z∣=17.28Ω； Ia ahead Ua 155°，∣Z∣=13.66Ω； Ia ahead Ua 165°，∣Z∣=12.12Ω. Fig. 6-3 The test process is as follows： Add symmetric three phase voltage and current at the same time. Adjust the phase 33 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 relationship and amplitude on the premise of ensuring three-phase symmetrical. Voltage Uab is fix at 85V，increase the current by 0.01A step length from 2A till protection operates. When operating, terminals corresponding to loss of excitation output control words should be connected. Take down the tested Uab and Iab and fill in Tab 6-5；voltage Uab is fixed at 40V，current Iab at 8A， change phase angle slowly, find the two operating boundary angles, subtract the two angles and get the scope of operation, and fill in Tab 6-5. Tab 6-5 Phase angle -15° -25° -50° -70° -90° -110° -130° -155° -165° Theoretica l value(Ω) 12.12 13.66 17.28 19.28 20.00 19.28 17.28 13.66 12.12 Tested value(Ω) (Uab/Iab) error(%) Left operating bound(°) Right operating bound(°) 6.3.2 test of asynchronous impedance components Wire as Fig 6-1, Calculate impedance using vector Uab and Iab. When testing, add three phase symmetric voltage and current. Set XA as 5Ω，XB as 20Ω，low-voltage as 100V， negative sequence voltage as 20V. for this setting, the operating scope of the circle is from -53.13°to -126.87°theoretically, which is shown as Fig6-4. The theoretical values of all the points to be tested are as follows: Ia ahead Ua 90°，∣Z∣=20Ωor∣Z∣=5Ω； Ia ahead Ua 80°，∣Z∣=19.489Ω； Ia ahead Ua 60°，∣Z∣=14.97Ω； Ia ahead Ua 55°，∣Z∣=12.44Ω； Ia ahead Ua 100°，∣Z∣=19.489Ω； Ia ahead Ua 120°，∣Z∣=14.97Ω； Ia ahead Ua 125°，∣Z∣=12.44Ω； Ia ahead Ua 54°，∣Z∣=11.618Ω； Ia ahead Ua 126°，∣Z∣=11.618Ω. 34 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 jX R -126.87 -53.13° |Z| Fig. 6-4 The test process is as follows： Add symmetric three phase voltage and current at the same time. Adjust the phase relationship and amplitude on the premise of ensuring three phase symmetrical. Voltage Uab is fix at 85V，increase the current by 0.01A step length from 2A till protection operates. When operating, terminals corresponding to control bites measuring loss of excitation output should be connected. Take down the tested Uab and Iab, and fill in Tab 6-6；voltage Uab is fixed at 50V，current Iab at 5A，change voltage phase angle slowly, find the two operating boundary angles, subtract the two angles and get the scope of operation, and fill in Tab 6-6. Tab 6-6 Phase angle -90° -80° -60° -55° -100° -120° -125° -126° Theoretical value (Ω) 20 or 5 19.489 14.97 12.44 19.489 14.97 12.44 11.618 Tested value (Ω) (Uab/Iab) Error(%) Operating scope(°) 6.3.3 Test of low-voltage components For loss of excitation protection, when the minimum voltage is higher than the low-voltage setting, loss of excitation protection will be blocked. Set and take down according to Tab 6-7，test the operating values of low-voltage components. Tab 6-7 Setting(V) 60.00 80.00 100.00 Operating value (V) Error (%) 35 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 6.3.4 Test of negative sequence components For loss of excitation protection, when the negative sequence voltage is higher than the setting value, loss of excitation protection will be blocked. Set and take down according to Tab 5-8，test the operating values of negative sequence components. Tab 6-8 Setting (V) 6.00 10.00 20.00 Operating value (V) Error (%) Note：when Uab＜30V，loss of excitation protection will be closed. 6.4 Check of low-voltage protection Wire as Fig 6-1，put low-voltage protection to on. Add DC220V between terminals B01 and B02. Put Analog circuit breaker to close. When protection operates, terminals corresponding to low-voltage output control words should be connected. When PT fails and PT failure block is on, low-voltage protection will be blocked. Set and take down according Tab 6-9，test the operating low-voltage( line voltage). Tab 6-9 Setting (V) 60.00 80.00 Add Ua and Ub Operating value (V) Error (%) Setting (V) 60.00 80.00 Add Ub and Uc Operating value (V) Error (%) Setting (V) 60.00 80.00 Add Uc and Ua Operating value (V) Error (%) 6.5 Check of over-voltage protection Wire as Fig 6-1，set over-voltage protection to on. If start hard strap function，body protection hard strap should be put to on. When protection operates, terminals corresponding to low-voltage output control words should be connected. Set and take down according Tab 6-10，test the operating over-voltage( line voltage). Tab 6-10 Setting (V) 120.00 150.00 Add Ua and Ub Operating value (V) Error (%) 36 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Setting (V) 120.00 150.00 Add Ub and Uc Operating value (V) Error (%) Setting (V) 120.00 150.00 Add Uc and Ua Operating value (V) Error (%) 6.6 Check of over load protection Over load protection is judged by maximum phase current. Wire as Fig 6-1, put overload to on. Set according to Tab 6-11，test operating current and take them down in the following table. When over load operates, corresponding terminals should be connected. Tab 6-11 Over load setting(A) 5 10 15 20 Over load delay(s) 10 5 2 1 Over load 0perating value of (A) Over load operating time(s) 6.7 Check of low frequency protection Wire as Fig 6-1，set low frequency protection to on. Change voltage frequency till protection operates. When low frequency protection operates, terminals corresponding to low frequency output control words should be connected. Set and take down according Tab 6-12， test the operating values of low frequency protection. Tab 6-12 Under frequency setting(Hz) 47 48 49 Operating value (Hz) Error (%) 6.8 Check of high frequency protection Wire as Fig 6-1，set high frequency protection to on. Change voltage frequency till protection operates. When high frequency protection operates, terminals corresponding to high frequency output control words should be connected. Set and take down according Tab 6-13， test the operating values of high frequency protection. Tab 6-13 Over frequency setting(Hz) 51 52 53 Operating value (Hz) Error(%) 37 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 6.9 Check of Reverse Power Protection Wire as Fig 6-1，set reverse power protection to on. When reverse power protection operates, terminals corresponding to reverse power output control words should be connected. Set and take down according Tab 6-14，test the operating value of reverse power protection. Tab 6-14 reverse power setting (W) 50 100 200 Operating value(W) Error(%) 6.10 Check of negative sequence over current protection Wire as Fig 6-1，set negative sequence over current sectionⅠ, sectionⅠⅠto on, add three phase current in negative sequence. If start hard strap function, body protection hard strap should be put to on. Add current till protection operates. When negative sequence over current operates, terminals corresponding to negative sequence over current output control words should be connected. Set and take down according Tab 6-15，test the operating value of negative sequence over current. Tab 6-15 SectionⅠ negative sequence setting(A) 0.50 1.00 3.00 Operating value (A) Error (%) SectionⅡ negative sequence setting (A) 0.50 1.00 3.00 Operating value (A) Error (%) 6.11 Check of negative sequence over current inverse-time protection Wire as Fig 6-1，set negative sequence over current inverse-time to on, add three phase current in negative sequence. If start hard strap function, body protection hard strap should be put to on. Add current till protection operates. When negative sequence over current inverse-time protection operates, terminals corresponding to negative sequence over current inverse-time output control words should be connected. Set and take down according Tab 6-16，test the operating value of negative sequence over current inverse-time. Tab 6-16 Rated current setting(A) 5 5 5 5 5 Negative sequence inverse-time constant 10 20 30 90 30 Negative sequence inverse-time starting 6 6 6 5.2 6 current (A) 38 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Negative sequence allowable current in 5 5 5 5 5 long operation (A) Upper time limit of negative sequence 1S 1S 1S 1S 1S inverse-time(s) Lower time limit of negative sequence 300s 300s 300s 600s 600s inverse-time (s) Added negative 5.3 30 sequence curren（t A 6.2 7.5 15 ） Theoretical operating time limit s 18.6 16 3.750 600 1 （ ） Tested operating time value (s) Note：if the operating time of negative sequence over current inverse-time is less than the upper time limit, operate according to upper setting time. If the operating time of negative sequence over current inverse-time is more than the lower limit, operate according to lower setting time. 6.12 Check of PT failure alarm Wire as Fig 6-1，set PT failure alarm to on. Set each operation criteria, and test PT failure block protection 6.13 Check of voltage less than 5% Wire as Fig 6-1，set voltage less than 5% protection to on. When protection operates, terminals corresponding to voltage less than 5% output control words should be connected. When PT fails and PT failure block is on, protection will be blocked. Set and take down according Tab 6-17，test the operating value (line voltage). Tab 6-17 Setting (V) 5.00 Add Ua and Ub Operating value(V) Error (%) Setting (V) 5.00 Add Ub and Uc Operating value (V) Error (%) Setting (V) 5.00 Add Uc and Ua Operating value (V) Error (%) 6.14 Check of voltage more that 90% Wire as Fig 6-1，set voltage more that 90% protection to on，When protection operates, terminals corresponding to voltage more than 90% output control words should be connected. Set and take down according Tab 6-18，test the operating voltage (line voltage) 39 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Tab 6-18 Setting (V) 80.00 100.00 Add Ua and Ub Operating value (V) Error (%) Setting (V) 80.00 100.00 Add Ub and Uc Operating value (V) Error (%) Setting (V) 80.00 100.00 Add Uc and Ua Operating value (V) Error (%) 6.15 heck of zero sequence over current protection Wire as Fig 6-5，put zero sequence over current to on. Set and take down the data according to Tab 6-19，test the operating zero sequence current. When protection operates, terminals corresponding to zero sequence over current output control words should be connected. M G P R - 8 2 0 H c I 0 D 0 7 B 2 9 Power supply I0’ D08 B30 Fig. 6-5 Tab. 6-19 Zero sequence over current setting(A) 0.50 1.00 1.50 Operating value(A) Error (%) 6.16 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 40 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 action after delay time. Measuring terminals B23-B26 should be shorted. 41 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 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 D01 Ia Ia' D02 A03 Closure position B03 Trolley Run A04 Closed position D03 Ib Ib' D04 B04 Trolly Testmonitoring A05 Trip position Earth Switchmonitoring B05 D05 Ic Ic' D06 A06 Manual closing Springinput B06 A07 Closed coil B07 Input 6 D07 I0 I0' D08 A08 Manual Input 7 NET2tripping input B08 D09 D10 A09 PROT tripping B09 Input 8input A10 Trip coil B10 Input 9 D11 IA IA' D12 A11 KM B11 Input 10 IB IB' A12 ＋KM B12 D13 D14Input 11 A13 B13 Input 12 D15 IC IC' D16 A14 Remote controlcommon terminal B14 Input 13 A15 Remote control Run Light closing contact B15 Input 14 D17 Ua Ua' D18 A16 Remote controltrip contact B16 Input 15 D19 Ub Ub' D20 DEBUG D21 Uc Uc' D22 D23 Uz0 Uz0'D24 A17 Spare Trip B17 Excit-loss C01 GPS-A A18 Spare Trip B18 OV Plate C02 GPS-B A19 Trip Main Switch B19 NS Plate C03 A20 Trip Main Switch B20 OC Plate C04 COM1A A21 Field-Dis.Switch B21 Overhaul C05 COM1B A22 Field-Dis.Switch B22 （+24V） C06 Shielded ground D25 DCSIN1+ A23 C.st.va./gu.bl. B23 Common terminal C07 COM2A DCSIN1- A24 C.st.va./gu.bl. B24 Trip Signal C08 COM2B D26 A25 U Under 5% B25 Alarm Signal C09 DCS1+ D27 DCSIN2+ A26 U Under 5% B26 Operate CIR C10 DCS1- A27 U Over 90% B27 Power off C11 DCS2+ D28 DCSIN2- A28 U Over 90% B28 Power off C12 DCS2- A29 Output 7 B29 Power A30 Output 7 B30 Power A31 Output 8 B31 A32 Output 8 B32 Shielded ground Figure 1 Terminal diagram of MGPR-820Hc microcomputer generator backup protection and monitoring device 42 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 Addendum 2: 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. Spring mechanism operating circuit 43 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 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. 44 User’s manual of MGPR-820Hc generator backup protection and monitoring device WLD[K]-JY-318-2018 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. 45