User's manual of MTPR-830Hc transformer differential protection device V1.03

Zhuhai Wanlida Electrical Automation Co., Ltd. http://www.zhwld.com User’s manual of MTPR-830Hc transformer differential protection device Prepared by： Qiu Lei Proofed by： He Wenhui Approved by：Lin Cunli Document No.: WLD [K]-JY-313-2018 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 The structure type of MTPR-830Hc series protection is Hc, transformer differential protection device. 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  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.  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. 2 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 1. Product description 1.1 Scope of application MTPR-830Hc transformer differential protection device can protect various down step and up step three-winding transformers and other transformers in substation under 110KV. 1.2 Function and specification 1.2.1 Protective function  Differential instantaneous over-current protection  Complex percentage restraint differential protection  Differential over-current alarm  CT failure alarm and block function  Body protection 1.2.2 Auxiliary function  Harmonic spectrum analysis  Phase display  Fault recorder  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  Remote binary quantity: the device has 20-way binary input. 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 3 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018  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 I~IV side current, etc.)  Having the 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, 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 Protective current circuit: 2In, continuous operation 10In, allowing 10s 40In, allowing 1s  Range and error of setting value  Maximum range of setting value: Current element: 0.1In~20In Timing element: 0.00s~100.00s  Error of setting value: Current and voltage setting value: ≤±3% of setting value Angle setting value: ≤±2° Whole-group operation time (including relay’s intrinsic time): Intrinsic operating 4 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 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 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%, 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 5 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 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 MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 2. Function of device 2.1 Differential instantaneous over-current protection Operating criterion:│Idif│>Isd N In which, Idif＝|∑Ii| i=1 (N is the number of transformer winding，Ii is rated frequency component of same name phase current). I sd --- Differential instantaneous over-current setting. Set according to the maximum unbalance current and magnetizing inrush current. When escaping external fault. This protection provides hard strap control function. Soft strap can control the ON or OFF of the protection. When serious short-circuit fault occurs in the transformer, differential current will increase sharply. When the current exceeds the setting value, protection operates instantaneously to protect transformer. D i f f e r e n t i a l i n s t a n t a n e o u s c o n t r o l w o r d O N H a r d p l a t e f u n c t i o n O F F & D if f e r e n t i a l p r o t e c t i o n p la t e c lo s e d ≥ I d a ≥ I s d & P r o t e c t io n o u tp u t I d b ≥ I s d ≥ I d c ≥ I s d Figure 2-1 Differential instantaneous over-current protection operation diagram 2.2 Complex percentile restraint differential protection The same as with the differential instantaneous protection, this protection also provides hard strap control function. Soft strap can control the on or off of the protection. This protection uses Three Segments Polyline Percentage Differential principle. The operating formula is as follows： 1. When Ires < Ir1， Id≥Id0 2. When Ir1<Ires < Ir2，Id – Id0≥Kres1 * ( Ires - Ir1) 3. When Ires >Ir2，Id – Id0 – Kres1 (Ir2 - Ir1)≥Kres2 *（Ires –Ir2） If any of the above conditions is met, and harmonic does not retain，percentage differential protection operates. Among the formula：Id is differential current，Id0 is setting value of differential threshold current，Ires is restraint current，Ir1 is the restraint current of turning-point1，Ir2 is the restraint current of turning-point 2, Kres1 is percentage coefficient 1，Kres2 is percentage coefficient 2. Operating current：Id =∣I1+I2+I3+I4∣ Restraint current：Ires = | |Id|-|I1|-|I2|-|I3|-|I4| | In the formula：I1, I2, I3, I4 are secondary current of side 1,2,3,4 CT of the transformer (the 7 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 equivalent current according to transformer wiring method after correction). The current transformers of the two sides are wired in Y mode and points to transformer. The device can adjust the current amplitude and phases of the two sides by setting unbalance coefficient and wiring mode. Percentage differential protection can make sure when external short-circuit occurs; protection will not operate; while protection is high sensitive to internal fault. I d I d 0 I r 1 I r 2 I r e s Figure 2-2 Differential operation curve Through control word, protection can choose whether to block through CT failure. Harmonic restraint: three-phase cross restraint is applied, when the following formula is met, protection will operate： Ih<Kxb×Id Ih ――― 2nd order harmonic quantity of differential current Kxb――― secondary harmonic restraint coefficient, set according to the magnetizing inrush current when escaping no-load closing of the transformer. 2.3 Differential over-current alarm Max{I da, I db, I dc}＞I set Which I set is the differential over-current setting, and it is settable, when differential exceeds the setting, the device will send off differential over-current alarm after 10s delay. 2.4 CT failure alarm and block function When in normal operation，the sum of three phase current of each side is zero. When one phase CT failure occurs, the sum of three phase current is not zero. To distinguish from ground fault, the following should be judged: 1) Among three phase current, the minimum one is zero. 2) The maximum phase current is more than zero and less than CT failure block current. When detecting CT failure, block percentage differential protection according to on/off set by control words and delay sending alarm signal, and show the time of failure. CT failure detection function can be on/off according to control words. Differential instantaneous over-current protection is not locked by CT failure。 8 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 2.5 Body protection Body protection of this device has body heavy gas, voltage regulation heavy gas and pressure release（there is a standby non-electric quantity），it corresponding operating terminals directly trip through the hardware of the device. Body heavy gas, voltage regulation heavy gas, pressure release, body light gas, voltage regulation light gas and oil low signal are connected to the device through binary input. The device send Alarm signal. High temperature（high oil temperature）protection and lost of cooling control power can set delay. Lost of cooling control power has long delay and short delay. Long delay corresponds to high temperature signal not presents, short delay corresponds to high temperature signal presents. The operation diagram of lost of cooling control power is as follows: N o h ig h te m p e ra tu re s ig n a l C o o lin g c o n tro l p o w e r lo ss s ig n a l & L o n g t im e C o o lin g c o n tro l p o w e r d e la y lo ss c o n tro l w o rd O N P ro te c tio n o u tp u t H ig h te m p e ra tu re s ig n a l S h o rt t im e d e la y C o o lin g c o n tro l p o w e r lo s s s ig n a l & C o o lin g c o n tro l p o w e r lo ss c o n tro l w o rd O N Figure 2-3 Lost of cooling control power operation diagram 2.6 Fault recorder See the communication coding table for the protection voltage and current waveform data collected by the recording unit. 2.7 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 background (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. 2.8 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” 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 9 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 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. 2.9 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. 2.10 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） 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) It has four One section set step:1（factory default 192.168.0.252） SNTP Address (SNTP sections. The One section set step:1（factory default 192.168.0.253） Address) range of 10 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 Parameter Range Description KW default value(KW every section One section set step:1（factory default 12.8.6.1） Default) is Printer IP address(Printer IP) 0-255 One section set step:1（factory default 192.168.0.254） Setting of basic parameters(B. Parameters) I side Rating Current(In) 0-1 Set step: 1 (factory default 0) 00: 5A. 01: 1A II side Rating Current(In) 0-1 Set step: 1 (factory default 0) 00: 5A. 01: 1A III side Rating Current(In) 0-1 Set step: 1 (factory default 0) 00: 5A. 01: 1A IV side Rating Current(In) 0-1 Set step: 1 (factory default 0) 00: 5A. 01: 1A 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:Ia2,5:Ib2,6:Ic2,7:Ia3,8:Ib3, 9:Ic3,10:Ia4,11:Ib4,12:Ic4 0: External transform,1: Y/Y/Y/△-11,2: Y/Y/△/△-11, 3: Y/△/△/△-11,4: Y/Y/Y/△-1,5: Y/Y/△/△-1, 6: Y/△/△/△-1,7: Y/Y/Y/Y-12,8: △/△/Y/Y-11 Transformer Mode 00-08 (factory default 0，when choose Y/Y/Y/Y-12 wiring mode，the program will act as 11 o’clock mode so as to eliminate zero sequence influence) Wave Record 00-01 Set step:1（factory default 0）00：Off；01：On Hard word on/off 00-01 Set step:1（factory default 0）00：Off；01：On Benchmark Side 00-01 Set step:1(factory default 0) 00:L-V Side;01: H-V Side Remote communication ack 10-100ms Set step: 1 (factory default 40ms) time (input ack time) 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: 1:Ia1,2:Ib1,3:Ic1,4:Ia2,5:Ib2,6:Ic2, 7:Ia3,8:Ib3,9:Ic3,10:Ia4,11:Ib4,12:Ic4 DA1~2 Channel Selection 0-12 Rating 5A： Current reference quantity: 0-6A corresponding to 4mA-20mA, Rating 1A： Current reference quantity: 0-1.2A corresponding to 11 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 Parameter Range Description 4mA-20mA, DA1～2 Adjustment Factor 0.5-1.5 Adjust D/A channel 1～2（4-20mA） parameters Channel factor setting(Channel Coeff.) 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. balance coefficient setting balance coefficient of side 1 0-5.00 Set step:0.01（factory default 1） balance coefficient of side 2 0-5.00 Set step:0.01（factory default 1） balance coefficient of side 3 0-5.00 Set step:0.01（factory default 1） balance coefficient of side 4 0-5.00 Set step:0.01（factory default 1） In which，balance coefficient K b is used to remove the influence of unbalance current. The specific calculation is as follows： 1． Calculate first rated current of each of the transformer I 1n I Sn1n ＝ 3U n which， Sn is the maximum rated capacity of the transformer，U n is the rated voltage of each side of the transformer（The actual operating voltage should be subject to）. 2． Calculate secondary rated current of each side of the transformer I 2n I I1n2n = Kcon KCT which，K CT is CT ratio of each side，K con is CT secondary wring coefficient（Y wring side of the transformer is 3 ，△ wring side is 1）. 3． It should be referenced to I side，calculate each side balance coefficient Kb,m of the transformer（side m） K I 2n,1 U n,m K CT ,m K con,1b,m ＝ ＝ I 2n,m U n,1 K CT ,1 K con,m which，Un,1 , KCT ,1 , Kcon,1 are rated voltage, CT ration and CT secondary wring coefficient of side I，U n ,m , KCT,m, Kcon,m are respectively rated voltage, CT ration and CT secondary wring coefficient of side M 12 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 3.2 List of setting values Setting value Range Description Differential instantaneous over-current protection 1/0 1/0：on/off(factory default: off) （Instant Diff.） Percentage differential protection 1/0 1/0：on / off (factory default: off) （Percent Diff.） Differential current over-current alarm 1/0 1/0：on / off (factory default: off) （Diff. C Over-Limit） CT Failure Alarm 1/0 1/0：on / off (factory default: off) CT Failure Lock 1/0 1/0：on / off (factory default: off) High temperature protection 1/0 1/0：on / off (factory default: off) （High Temperature） Lost of cooling control power 1/0 1/0：on / off (factory default: off) （Cooling Lost） Mutation startup （Abrupt Current） Starting current Startup Current 0.10-10.00A Set step:0.01A(factory default 10A) Differential instantaneous over-current protection （Instant Diff.） Differential instantaneous 0.10-100A Set step:0.01A(factory default 10A) over-current setting（Inst. Current Percentage differential protection （Percent Diff.） Percentage differential threshold 0.10-100A Set step:0.01A(factory default 10A) current Percent Diff. Sill) Percentage differential restraint turning-point point1 0.10-100A Set step:0.01A(factory default 10A) （Per. Res. Inflex. 1） Percentage differential restraint turning-point2 0.10-100A Set step:0.01A(factory default 10A) （Per. Res. Inflex. 2） Percentage restraint coefficient1 0.10-1.00 Set step:0.01(factory default 1.00) （Restraint Coef. 1） Percentage restraint coefficient2 0.10-1.00 Set step:0.01(factory default 1.00) （Restraint Coef. 2） Secondary harmonic restraint 0.10-1.00 Set step:0.01(factory default 1.00) coefficient （Sec.Res.Coef.） 13 Protection on/off word User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 Differential over-current alarm （Diff. C Over limit） Differential over-current setting 0.1-100A Set step:0.01A(factory default 10A) （Diff. C OL Value） CT failure alarm/block （CT Failure） Block current 0.1-100A Set step:0.01A(factory default 10A) （Overload Current） Delay setting （Time Set） 0.10-100.00s Set step:0.01s(factory default 15s) High temperature protection （High Temperature） Delay setting （Time Set 0-9999s Set step: 1s(factory default 20s) Lost of cooling control power （Cooling Lost） Long Delay setting Long Time Set 0-9999s Set step: 1s(factory default 20s) Short Delay setting Short Time Set 0-9999s Set step: 1s(factory default 20s) Note the choice of secondary rated current（In）: I1n Subject to secondary rated current of each side of the transformer I 2n = K Kcon2, note that CT CT secondary wring coefficient of each side of the transformer K con is different. For example, Subject to the higher voltage side of the transformer, when calculate secondary rated current of the higher voltage side of the transformer(Y wring side), it should multiply 3 . 4. Description of binary input, output and analog quantity 4.1 Monitoring of analog quantities Analog quantities can be monitored under the [Current Data], menu 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 name Test method terminal 1 side protection phase Add double the rating, displayed deviation not Terminals D01, D02 A current (Ia1) exceed 1% 1 side protection phase Add double the rating, displayed deviation not Terminals D03, D04 B current (Ib1) exceed 1% 1 side protection phase Add double the rating, displayed deviation not Terminals D05, D06 C current (Ic1) exceed 1% 2 side protection phase Add double the rating, displayed deviation not Terminals D07, D08 A current (Ia2) exceed 1% 2 side protection phase Add double the rating, displayed deviation not Terminals D09, D10 B current (Ib2) exceed 1% 14 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 Analog quantity Analog quantity name Test method terminal 2 side protection phase Add double the rating, displayed deviation not Terminals D11, D12 C current (Ic2) exceed 1% 3 side protection phase Add double the rating, displayed deviation not Terminals D13, D14 A current (Ia3) exceed 1% 3 side protection phase Add double the rating, displayed deviation not Terminals D15, D16 B current (Ib3) exceed 1% 3 side protection phase Add double the rating, displayed deviation not Terminals D17, D18 C current (Ic3) exceed 1% 4 side protection phase Add double the rating, displayed deviation not Terminals D19, D20 A current (Ia4) exceed 1% 4 side protection phase Add double the rating, displayed deviation not Terminals D21, D22 B current (Ib4) exceed 1% 4 side protection phase Add double the rating, displayed deviation not Terminals D23, D24 C current (Ic4) exceed 1% 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 Body heavy gas signal seen. B03 Voltage regulation heavy gas signal The device also has a 24V DC supply, if B04 Pressure release signal it is used, terminal B22 can be connected to B05 Standby non-electric quantity terminal B02～B21, in [Binary input] menu signal in the [Run States], the status of binary input B06 Body light gas signal can be seen. B07 Voltage regulation light gas signal Connect the positive terminal to terminal B08 Oil temperature high A12(+KM), negative terminal to terminal B09 Oil low signal A05(TWJ),A04(HWJ),in [Binary input] menu B10 Lost of cooling control power in the [Run States], the status of binary input B11 Input 10 can be seen. 15 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 B12 Input 11 Please note about the binary input voltage B13 Input 12 upon ordering, it is set to DC220V by default. B14 Input 13 B15 Input 14 B16 Input 15 B17 Input 16 B18 Input 17 B19 Input 18 B20 Differential protection plate B21 Overhaul B22 Positive terminal of internal 24V power supply A10 Body heavy gas trip connect the negative terminal to terminal A11 Voltage regulation heavy gas trip A16, positive terminal to terminal A10～A13, A12 Pressure release trip in [Binary input] menu in the [Run States], A13 Standby non-electric quantity trip the status of binary input can be seen. 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 B17-B18 Differential trip side 1 B19-B20 Differential trip side 2 Select open and close menu, use “+”, “-” B21-B22 Differential trip side 3 key to operate and test the corresponding B23-B24 Differential trip side 4 terminals. B29-B30 and B31-B32 are Differential trip side B25-B26 common open terminals that should close. standby B27-B28 Output 6 B29-B30 Output 7 B31-B32 Output 8 16 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 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), 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 I~IV sides current data、device address and time 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. 17 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 01.Run States -1/5- Main menu 05.Report Dis. -1/4- Current Data Trip Report Binary Input Soft Strap 01.Run Status Binary Report Event Report Harmonic Data AD Volt. Data 02.Run Parameters Print Report 03.Setting View 06.Parameters -1/5- 02.Run Param. -1/3- Comm. Setting  Setting Zone No. 04.Setting Value B. Parameters PROT On/Off D/A Setting Clock Setting 05. Report Manage Balance Coe. Channel Coe. 03.Setting View-1/8- 06. SYS Parameters  Abrupt Current 07.Device Test 07.DeviceTest. -1/2- Instant Dif.  Output Test Percent Dif. 08.PassWord Lamp Test Diff. C Over limit ...... 09.Version Info. 08.Password □□□□ 04.Setting Value-1/8-  Abrupt Current 10.Comm Test PROT AUTO DEV V2.00 Instant Dif. Type:MTPR-830Hc Percent Dif. 10.Comm test ID:□□.□□.□□ Diff. C Over limit Input Test CRC:□□□□□□□□ ...... SOE Test Date:20XX-XX-XX  Note 1:For the Setting menu, see the description of each device.  Run Status The [Run Status] menu contains 5 submenus, including current data, binary input, soft strap, harmonic data, AD voltage data. It is described as follows: Current Data -1/21- Ia1 = □□□·□□ A 000.0° Ib1 = □□□·□□ A 000.0° Ic1 = □□□·□□ A 000.0° Ia2 = □□□·□□ A 000.0° Ib2 = □□□·□□ A 000.0° Ic2 = □□□·□□ A 000.0° 18 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 Binary Input -1/24- Heavy Gas :□ VR Heavy Gas :□ Press relief :□ Spare Non-e. :□ Description varies with model, see corresponding terminal Light Gas :□ diagram for details VR Light Gas :□ Oil High T :□ Oil Level Low :□ Cooling Lost :□ 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 -1/7- Instant Diff. Off Percent Diff. Off Diff. C Over Limit Off CT Failure Alarm Off CT Failure Lock Off ...... Harmonic Data -1/10- 2nd ： □□□·□□% 3rd ： □□□·□□% 2~11 harmonics for which analog channels 4th ： □□□·□□% have been selected in system 5th ： □□□·□□% ...... 11th ：□□□·□□% AD Volt. Data -1/2- AD1：□□·□□□V AD Voltage Check AD2：□□·□□□V  Run Parameters In the [Run Parameters] menu includes 3 submenus, including [Setting 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. 19 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 PROT On/Off -1/43- Parameter Modify Instant Diff. 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” ke y to complete setting, and the device will prompt modifying success or not. If the “Canc el” key is pressed, the protect plate status setting will be cancelled and the menu will ret urn 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 Date：20□□－□□－□□ pressing the ““, ““ keys, modify to the desired value with the “+”, Time： □□：□□：□□ “-” keys. Press the “Enter” key to complete setting. If 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 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 20 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 Ia1 = □□□·□□ A Ib1 = □□□·□□ A Ic1 = □□□·□□ A ……  System parameters After entering the [SYS Parameters] menu, the correct password is required to enter the [SYS Parameters] menu. It displays the following: Parameters -1/5- Comm. Setting B. Parameters D/A Setting Balance Coef. 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;03：19.2KB;04： IP Address □□□. □□□. □□□. □□□ 38.4KB;05：115.2KB SNTP Address □□□. □□□. □□□. □□□ K W Default For Ethernet communication □□□. □□□. □□□. □□□ Printer IP □□□. □□□. □□□. □□□  Setting of basic parameters (see the description of the protection device for basic parameters) B.Parameters: -1/11- Rating Current 1 □□ Rating Current 2 □□ Rating Current 3 Setting the CT secondary current rating 00: 5A. 01: 1A □□ Rating Current 4 □□ ......  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 21 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 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.  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 -1/11- Differential 1 Differential 2 Press “Enter” key Differential 1 Differential 3 On Off Differential 4 Note: Standby Output Node:A17,A18 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:MTPR-830Hc ID:□□.□□.□□ CRC:□□□□□□□□ Date:20XX-XX-XX 22 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 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 differential instantaneous over-current protection Set differential instantaneous over-current protection to on. Hard strap function is off (when it’s on, C15 differential protection strap should be connected). Add each side current and make the differential current more than the setting，the differential instantaneous over-current protection will operate. According to output matrix，the corresponding terminals should be connected. For example： Wire as the following diagram. Set differential instantaneous over-current protection to on. Hard strap function is off. MTPR-830Hc Ia1 D1 Ia1’ D2 B29 Ib1 D3 Power supply Ib1’ D4 Ic1 D5 B30 Ic1’ D6 Figure 6-1 Set according to the following table. Measure the operating current and take them down in the following table. When instantaneous over-current protection operates, according to output matrix，the corresponding terminals should be connected.. Instantaneous Add only phase A current， over-current protection 1ln 2ln 5ln 10ln check the operating value setting(A) Operating value Instantaneous Add only phase B over-current protection 1ln 2ln 5ln 10ln current，check the setting (A) operating value Operating value Instantaneous Add only phase C over-current protection 1ln 2ln 5ln 10ln current，check the setting (A) operating value Operating value 23 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 6.2 Check of Complex percentage differential protection Set percentage differential protection to on, only add phase A current to each side（same angle），do not add harmonic. Let differential current exceed percentage differential minimum threshold, restraint current should be zero. When percentage differential operates，according to output matrix，the corresponding terminals should be connected. The minimum threshold of Only add phase A 1ln 2ln 5ln 10ln percentage differential (A) current to each side, Operating value check operating zone Operating zone For protection check under other conditions, please refer to the detailed description about percentage differential in “device function” of this manual. Concerning in this manual, add all sides current and satisfy percentage differential curve and harmonics don’t restrain. 6.3 Check of differential over-current alarm Set differential over-current alarm to On, add current to every side and make the differential current exceed differential over-current setting, the device will report differential over-current alarm. Test corresponding terminals according to output matrix should be short. Differential instantaneous protection checking method should be referenced. 6.4 Lost of cooling control power There are long and short delay for lost of cooling control power, when lost of cooling control power signal exists, together with oil high temperature signal, the device will output after short delay; when lost of cooling control power signal exists, no oil high temperature signal exists, the device will output after long delay. Wire according to the following Fig, set lost of cooling control power to On. MTPR-830Hc Input common port B01 B29 Oil temp erature is high B08 Power supply B30 C ooling control power B10 Figure 6-2 Connect B01-B08 and B01-B10 （ note that I/O board has external DC 220V and self-generated 24V）, the device will output after short delay; If only B01-B10 is short, the device will output after long delay. Test the 2 delays and compare them with setting. After it operates, test the terminals should be shorted according to output matrix. 24 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 Addendum 1: Terminal diagram of the device I/O POWER CPU A C A01 Main transformer Input comon trip side I B01 point- A02 Main transformer B02 Main transformer D01 D02trip side I heavy gas signal NET1 Ia1 Ia1' A03 Main transformer Pressure regulatortrip side II B03 heavy gas signal A04 Main transformer Pressure release D03 Ib1 Ib1' D04 trip side II B04 signal A05 Main transformer B05 Backup Non-electricitytrip side III quantity signal D05 Ic1 Ic1' D06 A06 Main transformer B06 Main transformertrip side III light gas signal A07 Main transformer B07 Pressure regulator D07 Ia2 Ia2' D08trip side IV light gas signal A08 Main transformertrip side IV B08 High oil NET2 temperature signal D09 Ib2 Ib2' D10 A09 B09 Low oil signal A10 Main transformer B10 Lost of cooling Ic2'heavy gas trip control power D11 Ic2 D12 A11 Pressure regulatorheavy gas trip B11 Input 10 A12 Pressure release B12 D13 Ia3 Ia3' D14trip Input 11 A13 Backup Non-electricityquantity trip B13 Input 12 D15 Ib3 Ib3' D16 A14 B14 Input 13 Run Light A15 B15 Input 14 D17 Ic3 Ic3' D18 A16 Main transformercommon port - B16 Input 15 D19 Ia4 Ia4' D20 DEBUG D21 Ib4 Ib4' D22 D23 Ic4 Ic4' D24 Differential A17 B17 GPS-Atrip side I Input 16 C01 A18 Differential B18 Input 17 C02 GPS-B Note: trip side I A19 Differential C03 1.Ia1,Ib1,Ic1 aretrip side II B19 Input 18 A20 Differential B20 Differential C04 COM1A protection currents oftrip side II protection plate side I. A21 Differential Overhaul COM1Btrip side III B21 C05 2.Ia2,Ib2,Ic2 are A22 Differential B22 （+24V） C06 Shielded ground protection currents oftrip side III A23 Differential B23 C07 COM2A side II.trip side IV Common terminal A24 Differential 3.Ia3,Ib3,Ic3 are B24 Trip Signal C08 COM2Btrip side IV protection currents of A25 Differential B25 C09 DCS1+ trip standby Alarm Signal side III. A26 Differential B26 C10 DCS1- 4.Ia4,Ib4,Ic4 aretrip standby A27 Output 6 B27 Power off C11 DCS2+ protection currents of side IV. A28 Output 6 B28 Power off C12 DCS2- 5.COM1 and COM2 are 485 A29 Output 7 B29 Power interfaces, Net1 and A30 Output 7 B30 Power Net2 are Ethernet interfaces. A31 Output 8 B31 6. Whether +24V on Power A32 Output 8 B32 Shielded ground board is standard configuration or not can be fixed when using internal +24V as feeder. Figure 1 Terminal diagram of MTPR-830Hc transformer differential protection device 25 User’s manual of MTPR-830Hc transformer differential protection device WLD[K]-JY-313-2018 Addendum 2: Typical wiring diagram of the device breaker C B A breaker A B C D01 D02 D03 D04 D05 D06 D07 D08 D09 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D24 Ia1 Ia1'Ib1 Ib1'Ic1 Ic1'Ia2 Ia2'Ib2 Ib2'Ic2 Ic2'Ia3 Ia3'Ib3 Ib3'Ic3 Ic3'Ia4 Ia4'Ib4 Ib4'Ic4 Ic4' I side current II side current III side current IV side current AC plug-in unit MTPR-830Hc transformer differential protection device Net1 Main A01transformer Trip side I A02 Net2 Main A03 transformer Debugging port Trip side II A04 C01 GPS+ Maintransformer A05 C02 GPS- Trip side III A06 C03 Main A07 transformer C04 COM1A Power plug-in unit Trip side IV A08 C05 COM1A AC/DC A09 Shielded C06 Shielded ground ground Body heavy gas signal A10 Voltage regulation C07 COM2A heavy gas signal A11 C08 COM2A Pressure release signalA12 DCSOut1+ Standby non-electricC09 quantity signal A13 4~20mA RL C10 DCSOut1- A14 C11 DCSOut2+ A15 4~20mA RL C12 DCSOut2- common terminal A16 Differential Trip side I Differential Trip side II Differential Trip side III Differential Trip side IV Differential Trip side standby Output 6 Output 7 Output 8 Figure 2 Typical wiring diagram of MTPR-830Hc transformer differential protection device 26 breaker CPU plug-in unit -WC B01 Input common terminal- B19 Input 18 +WC DifferentialB02 Body heavy gas signal B20 protection plate Voltage regulation B03 heavy gas signal B21 Overhaul B04 Pressure release signal B22 24V+ Standby non-electric B05 quantity signal B23 Signal common terminal B06 Body light gas signal B24 Trip Signal Voltage regulation B07 light gas signal B25 Alarm Signal B08 Oil temperature high B26 B09 Oil low signal B27 Power off B10 Lost of cooling control power B28 Power off B11 Input 10 B29 Power+ B12 Input 11 B30 Power- B13 Input 12 B31 B14 Input 13 B32 Shielded ground B15 Input 14 B16 Input 15 B17 Input 16 B18 Input 17 I/O plug-in unit breaker