User's manual of MGPR-810Hc generator differential protection device V1.03

Zhuhai Wanlida Electrical Automation Co., Ltd. http://www.zhwld.com User’s manual of MGPR-810Hc generator differential protection device Prepared by： Qiu Lei Proofed by： He Wenhui Approved by：Lin Cunli Document No.: WLD [K]-JY-317-2018 Version No.: V1.03.02 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 MGPR-810Hc series protection is Hc, device supports A, B, C three phase current protection. 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, primary differential current 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 MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 1. Product description 1.1 Scope of application MGPR-810Hc microcomputer generator differential protection device applies to medium-small capacity generator protection. The device, MGPR-820Hc microcomputer generator backup protection measuring and control device, MGPR-850Hc microcomputer generator grounding protection device together constitute a complete generator protection. 1.2 Function and specification 1.2.1 Protective function  Differential instantaneous over-current protection  Complex percentage differential protection  Transverse differential protection  Differential over-current alarm  CT failure protection  No-electric quantity protection(2 way) 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. 3 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 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, etc.)  Having the electric energy quality analysis function and perfect harmonic analysis function  Integrating perfect metering functions and Metrology Function  Support network printing function, include two ways: real-time print and artificial print  Support virtual correspondent node remote test, including remote communication to correspondent node, remote measure to correspondent node, event to correspondent node, can online testing, it is convenient for debugger to debug the device on-site.  Excellent hardware interchangeability, user maintenance is easily and it reduced quantity of spare parts  Protection output relays can be configured flexibly for user convenience  Using a 6U, 19/3” standard enclosure in a rear plug-in structure. the device can be installed in site on a switchboard or combined in a centralized manner 1.2.7 Main technical specifications  Rated data Power supply: DC/AC 86~265V Operating voltage: DC 220V or DC 110V AC voltage: 100/ 3 V or 100V AC current: 5A or 1A Frequency: 50Hz  Power consumption DC circuit: <10W (normal operation). <15W (protection operation) AC voltage circuit: <0.5VA/phase AC current circuit: <1VA/phase (In = 5A). <0.5VA/phase (In = 1A).  Overload capability AC voltage circuit: 1.2Un, continuous operation 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: Current element: 0.1In~20In Timing element: 0.00s~100.00s 4 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018  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 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 MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 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 MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 2. Function of device 2.1 Differential instantaneous over-current protection When any-phase differential current exceeds the differential instantaneous over-current setting value, protection operates instantaneously to protect transformer. Operating criterion：│Id│>Isd In which, │Id│=│I1+I2│ Isd: Differential instantaneous over-current setting. 2.2 Complex percentage differential protection As the main protection of generator, this protection uses differential protection with the ratio braking characteristics. Id K Operate Id0 Ir0 Ir Figure 2-1 Differential operation curve The operating formula is as follows： 1. When Ir < Ir0, Id>Id0 2. When Ir1≥Ir0, Id – Id0>K * ( Ir – Ir0) Among the formula：Id is differential current,Id0 is setting value of differential threshold current, Ir is restraint current,Ir0 is the restraint current of turning-point, K is percentage coefficient. Operating current：Id =∣I1+I2∣ Restraint current：Ir = | I1-I2 | In the formula：I1---- generator current l2----- neutral current According to the phase in the program, if any of the above conditions is met, percentage differential protection operates. 2.3 Transverse differential protection When the generator stator winding has branch of two parallel, generally device will install transverse differential protection of differential reaction generator stator winding transverse short circuit. In order to eliminate the influence of higher harmonic, this device will filter out third harmonic in internal automatic. When the rotor of the generator excitation loop two points happen earth fault, transverse differential protection may be mis-operation. In order to prevent transverse differential protection mis-operation caused by exciting circuit two points earth fault, after one-point earth in exciting circuit, device will automatically take transverse differential protection switch to the time limit for action in the trip. The time limit for action can be set by the user. 2.4 Differential over-current alarm Under normal circumstances, device monitors every phase differential current. When 7 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 any-phase differential current exceeds the setting, protection operates. 2.5 CT failure CT is the maximum load current. 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. 2.6 Excitation Failure Non-electricity protection, the delay time can be set. 2.7 Water ride/Thermal equipment Fault Non-electricity protection, the delay time can be set. 2.8 Fault Record It records the current waveform sampled by the device, for more information please refer to communication code table. 2.9 Fault Record Device supports network printing function, can print remote control information, SOE information and the setting parameter list. The printer IP address must been set rightly on the device (the network segment of printer must be as same as that of device IP addresses), then connect a printer, put on "real-time report print ", it can print the current remote control information or SOE information when device is connected to the back-ground (including remote communication shift, protection action), and can print the current SOE information when device is not connected to the background. In addition, when press the "ok" button in the "print report" or "print setting value" menu, it can print the all setting parameter or the all report information, including action value. 2.10 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. 2.11 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. 8 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 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. 2.12 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) One section set step:1（factory default 192.168.0.253） SNTP Address (SNTP It has four One section set step:1（factory default 192.168.0.254） Address) sections. The KW default value(KW range of every One section set step:1（factory default 12.8.6.1） Default) section is Printer IP address(Printer 0-255 One section set step:1（factory default 192.168.0.255） IP) Setting of basic parameters(B. Parameters) Rating Current（In） 0-1 Set step: 1 (factory default 0) 00: 5A. 01: 1A 9 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 Parameter Range Description For harmonic calculation, select the corresponding Harmonic Channel 0-7 reference quantity: 0:exit from harmonic calculation function 1:Ia1,2:Ib1,3:Ic1,4:Ia2,5:Ib2,6:Ic2,7:IH Wave Record 0-1 Set step:1（factory default 0）00：Off;01：On Hard Word 0-1 Set step:1（factory default 0）00：Off;01：On Remote communication 10-100ms Set step: 1 (factory default 40ms) ack 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) D/A channel setting(D/A Setting) Select DA1~2 to output corresponding reference quantities: 0: No D/A output 1:Ia1, 2:Ib1, 3:Ic1, 4:Ia2, 5:Ib2, 6:Ic2, 7:IH DA1~2 Channel Rating 5A： 0-7 Selection Current reference quantity: 0-6A corresponding to 4mA-20mA Rating 1A： Current reference quantity: 0-1.2A corresponding to 4mA-20mA DA1～2 Adjustment 0.5-1.5 Adjust D/A channel 1～2（4-20mA） parameters Factor Channel factor setting(Channel Coef.) Set step:0.001（factory default 1） Channel data 1～7 0.5-5 Channel data 1-7 are corresponded to the channel factor of analog quantity 1-7. 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） 10 Protection on/off word User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 CT Failure Alarm 1/0 1/0：On/Off (factory default Off) CT Failure Lock 1/0 1/0：On/Off (factory default Off) Transverse differential protection 1/0 1/0：On/Off (factory default Off) Excitation Fault 1/0 1/0：On/Off (factory default Off) Water ride/Thermal equipment Fault 1/0 1/0：On/Off (factory default Off) Mutation startup(Abrupt Current) Starting current （Startup Current） 0.10－1.00A Set step:0.01A(factory default 0.50A) Percentage differential protection (Percent Diff.) Percentage differential threshold 0.10—5.00A Set step:0.01A(factory default 2A) current (Percent Diff. Sill) Percentage differential restraint turning-point point 0.1—12.50A Set step:0.01A(factory default 5A) (Per. Res. Inflex.) Percentage restraint coefficient1 0.10-0.80 Set step:0.01(factory default 0.50) (Restraint Coe.) Differential over-current alarm (Diff. C Over limit) Differential over-current setting 1.00-100.00A Set step:0.01A(factory default 5A) （Diff. C OL Value） CT failure alarm/block (CT Failure) Block current 0.10-10.00A Set step:0.01A(factory default 5A) (Overload Current) Delay setting (Time Set) 0.00-100.00s Set step:0.01s(factory default 5s) Excitation Fault Excitation Fault 0-100s Set step:0.01s(factory default 5s) Water ride/Thermal equipment Fault Water ride/Thermal equipment 0-100s Set step:0.01s(factory default 5s) Fault Transverse differential protection Transverse differential protection 0.10-20.00A Set step:0.01A(factory default 5A) setting Transverse differential protection 0.00-100.00s Set step 0.01s(factory default 5s) time Differential current over-current Differential current over-current 0.00-100.00A Set step:0.01A(factory default 5A) setting 11 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 Differential current over-current 0.00-100.00s Set step 0.01s(factory default 5s) time 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. The list is as follows: Analog quantity Analog quantity Test method terminal name 1 side protection Add double the rating, displayed deviation not Terminals D01、D02 phase A current (Ia1) exceed 1% 1 side protection Add double the rating, displayed deviation not Terminals D03、D04 phase B current (Ib1) exceed 1% 1 side protection Add double the rating, displayed deviation not Terminals D05、D06 phase C current (Ic1) exceed 1% 2 side protection Add double the rating, displayed deviation not Terminals D07、D08 phase A current (Ia2) exceed 1% 2 side protection Add double the rating, displayed deviation not Terminals D09、D10 phase B current (Ib2) exceed 1% 2 side protection Add double the rating, displayed deviation not Terminals D11、D12 phase C current (Ic2) exceed 1% Transverse differential Add double the rating, displayed deviation not Terminals D13、D14 current (IH) 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 Excitation fault seen. B03 Water ride/Thermal equipment The device also has a 24V DC supply, if Fault it is used, terminal B22 can be connected to B04 Rotor one point earth fault terminal B02～B21, in [Binary input] menu 12 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 B05 Input 4 in the [Run States], the status of binary input B06 Input 5 can be seen. B07 Input 6 Please note about the binary input voltage B08 Input 7 upon ordering, it is set to DC220V by default. B09 Input 8 B10 Input 9 B11 Input 10 B12 Input 11 B13 Input 12 B14 Input 13 B15 Input 14 B16 Input 15 B17 Input 16 B18 Input 17 B19 Transverse differential plate B20 Differential protection plate B21 Overhaul B22 Positive terminal of internal 24V power supply 4.3 Monitoring of binary output Binary output can be monitored under the [Binary output] menu, press the ““, ““ keys to flip over. Binary output terminals Binary output name Test method B23-B24 Trip Signal B23-B25 Alarm Signal A17-A18 Spare Trip Node A19-A20 Trip Main Switch Select open and close menu, use “+”, A21-A22 Trip Field Discharge Switch “-” key to operate and test the Close Steam valve/Guide corresponding terminals. A29-A30 A23-A24 hydrofoil and A31-A32 are common open A25-A26 Output 5 terminals that should close. A27-A28 Output 6 A29-A30 Output 7 A31-A32 Output 8 13 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 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 primary differential 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. 14 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 01.Run States -1/5- Main menu 05.Report Dis. -1/4- Protection Data Trip Report Binary Input 01.Run Status Binary Report Soft Strap Event Report Harmonic Data Print Report AD Volt. Data 02.Run Parameters 03.Setting View 06.Parameters -1/6- Comm. Setting 02.Run Param. -1/3- Transformer Coe.  Setting Zone No. 04.Setting Value B. Parameters PROT On/Off Clock Setting 05. Report Manage D/A Setting Channel Coe. Language Select 06. SYS Parameters 03.Setting View-1/8- 07.Device Test 07.DeviceTest. -1/2-  Percent Dif.  Output Test Instant Dif. 08.PassWord Lamp Test Trans. Dif. Diff. C Over-Limit 09.Version Info. 08.Password ...... □□□□ 04.Setting Value-1/8- 10.Comm Test  Percent Dif. PROT AUTO DEV V2.00 Instant Dif. Type:MGPR-810Hc Trans. Dif. 10.Comm test ID:□□.□□.□□ Diff. C Over-Limit Input Test CRC:□□□□□□□□ 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 5 submenus, including protection data, binary input, soft strap, harmonic data, AD voltage data. It is described as follows: PROT Data -1/13- Ia1 = □□□·□□ A 000.0° Secondary current value of generator side Ib1 = □□□·□□ A 000.0° Ic1 = □□□·□□ A Secondary current value of neutral point 000.0° Ia2 = □□□·□□ A 000.0° Differential secondary current value Ib2 = □□□·□□ A 000.0° Binary Input -1/20- Excitation Fault :□ According to "close", means Excitation Fault input is on Water ride/Thermal equipment According to "close", means Water Fault :□ ride/Thermal equipment Fault input is on Rotor one point earth fault :□ Input 4 :□ Input 5 :□ Description varies with model, see corresponding terminal ...... diagram for details Transverse differential strap :□ Differential protection strap :□ 15 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018  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 -1/8- Percent Diff. Off Instant Diff. Off Trans. Diff. Off Diff. C Over-Limit Off CT Failure Alarm Off ...... Harmonic Data -1/10- nd 2 ： □□□·□□% 3rd ： □□□·□□% 4th ： □□□·□□% 2~11 harmonics for which analog channels 5th ： □□□·□□% ...... have been selected in system 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. PROT On/Off -1/8- Parameter Modify Percent 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” key to complete setting, and the device will prompt modifying success or not. If the “Cance l” key is pressed, the protect plate status setting will be cancelled and the menu will retur n previous menu.  Clock setting: A battery-back real-time clock is provided in the device, which can perform time adjust 16 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 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 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 Ia1 = □□□·□□ A Ib1 = □□□·□□ A Ic1 = □□□·□□ A Ia2 = □□□·□□ A Ib2 = □□□·□□ A Ic2 = □□□·□□ A ……  System parameters After entering the [SYS Parameters] menu, the correct password is required to enter the [SYS Parameters] menu. It displays the following: 17 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 Parameters -1/6- Comm. Setting Transformer Coe. B. Parameters D/A Setting Channel Coe. Language Select  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 □□ IP Address 00：2.4KB;01：4.8KB;02：9.6KB;03：19.2KB;04： □□□. □□□. □□□. □□□ 38.4KB;05：115.2KB SNTP Address □□□. □□□. □□□. □□□ K W Default For Ethernet communication □□□. □□□. □□□. □□□ Printer IP □□□. □□□. □□□. □□□  Transformer Coefficient TransformCoe -1/1- CT Ratio □□□□ Max：5000 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: -1/6- Rating Current □□ Setting the CT secondary current rating 00: 5A. 01: 1A Harmonic Channel Setting analog quantity channels 0~11 for harmonic monitoring, select 0 □□ Wave Record 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. 18 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018  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- Spare Trip Node Press “Enter” key Trip Main Switch Spare Trip Node Trip Field Discharge Switch On Off Close Steam valve/Guide hydrofoil Note: Output 5 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 Note: For a corresponding nonstandard model, the device’s Type:MGPR-810Hc displayed Type does have to be changed. ID:□□.□□.□□ CRC:□□□□□□□□ Date:20XX-XX-XX  Comm test When debugger debug the device on-site in the case of no-accessing the actual analog electric quantity or the input quantity, [Comm. Test] is used to do the test of the communication node of the device. 19 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 6. Check of protection function 6.1 Check of differential instantaneous over-current protection Differential protection plate is on. 6.1.1 Check of differential instantaneous over-current operating value Wire as the figure 6.1. D01, and D02 is machine side A phase current input. D03 and D04 is machine side B phase current input. D05 and D026 is machine side C phase current input. D07 and D08 is the neutral A phase current input. D09 and D10 is the neutral B phase current input. D11 and D12 is the neutral C phase current input. Input each phase current in turn, gradually increase, until the protection has acted. Then the protection outputs of the corresponding protection measure output sequence should be on. Write the data in the table 6.1. MGPR-810Hc Ia1、Ia2 D01,D07 Ia1’、Ia2’ D02,D08 B29 Ib1、Ib2 D03,D09 Power supply Ib1’、Ib2’ D04,D10 Ic1、Ic2 D05,D11 B30 Ic1’、Ic2’ D06,D12 Figure 6-1 Table 6.1 Instantaneous over-current Add only machine A 6 8 10 protection setting(A) phase current, check the Operating value operating value Error rate(%) Instantaneous over-current Add only machine B 6 8 10 protection setting (A) phase current, check the Operating value operating value Error rate(%) Instantaneous over-current Add only machine C 6 8 10 protection setting (A) phase current, check the Operating value operating value Error rate(%) Instantaneous over-current Add only the neutral 6 8 10 protection setting(A) phase A current, check the Operating value operating value Error rate(%) 20 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 Instantaneous over-current Add only the neutral 6 8 10 protection setting (A) phase B current, check the Operating value operating value Error rate(%) Instantaneous over-current Add only the neutral 6 8 10 protection setting (A) phase C current, check the Operating value operating value Error rate(%) 6.1.2 Check of differential instantaneous over-current operating time Wire as the figure 6.2. Input 1.5 times of differential instantaneous over-current value to do the experiment, record the action time of the protection. MGPR-810Hc D01 B29 Current input Device power D02 B30 Protection output ms Figure 6.2 6.2 Check of Complex percentage differential protection Differential protection plate is on. 6.2.1 Check of differential current threshold operating value Wire as the figure 6.1. D01, and D02 is machine side A phase current input. D03 and D04 is machine side B phase current input. D05 and D026 is machine side C phase current input. D07 and D08 is the neutral A phase current input. D09 and D10 is the neutral B phase current input. D11 and D12 is the neutral C phase current input. Set ratio braking point value to 5.00 A, put CT lock exit. Input each phase current in turn, gradually increase, until the protection has acted. Then the protection outputs of the corresponding protection measure output sequence should be on. Write the data in the table 6.2. Table 6.2 Instantaneous over-current Add only machine A phase 6 8 10 protection setting(A) current, check the operating Operating value value Error rate(%) Instantaneous over-current Add only machine B phase 6 8 10 protection setting (A) current, check the operating Operating value value Error rate(%) 21 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 Instantaneous over-current Add only machine C phase 6 8 10 protection setting (A) current, check the operating Operating value value Error rate(%) Instantaneous over-current Add only the neutral phase A 6 8 10 protection setting(A) current, check the operating Operating value value Error rate(%) Instantaneous over-current Add only the neutral phase B 6 8 10 protection setting (A) current, check the operating Operating value value Error rate(%) Instantaneous over-current Add only the neutral phase C 6 8 10 protection setting (A) current, check the operating Operating value value Error rate(%) 6.2.2 Check of Ratio braking coefficient Wire as the figure 6.1. Setting the differential current threshold value to 2.00 A, the ratio braking point to 5.00 A, and ratio braking coefficient to 0.4. Put CT lock exit. Because the corresponding current is inverting to join, assuming that machine side current is I1, neutral side current is I2, the differential current is Id = I1 + I2, braking current is Ir = (I1-I2), ratio braking coefficient is K=(Id- Id0)/(Ir-Ir0). Among them: Id0: the differential current threshold current, Ir0: the ratio braking turning point fixed value. Table 6.3 Braking current (A) 6.00 8.00 both sides of A phase current reverse input Real measurement K Error rate(%) of K Braking current (A) 6.00 8.00 both sides of B phase current reverse input Real measurement K Error rate(%) of K Braking current (A) 6.00 8.00 both sides of C phase current reverse input Real measurement K Error rate(%) of K 6.2.3 Check of differential current operating time Wire as the figure 6.2. Input 2 times of differential current value to do the experiment, record the action time of the protection. 6.3 Transverse differential protection 22 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 Transverse protection palteis on. 6.3.1 Check of transverse differential protection operating value Wire as the figure 6.3. D13 and D14 is transverse differential protection current input, set transverse differential protection current according to table 6.4. Input current, gradually increase, until the protection has acted. Then the protection outputs of the corresponding protection measure output sequence should be on. Write the data in the table 6.4. MGPR-810Hc IH D13 B29 Device Power IH’ D14 B30 Figure 6.3 Table 6.4 Setting value(A) 1.00 5.00 20.00 Add the actual current Operating value(A) Error rate (%) 6.3.2 Check of transverse differential protection operating time When the rotor of the generator excitation loop two points happen earth fault, transverse differential protection may be mis-operation. In order to prevent transverse differential protection mis-operation caused by exciting circuit two points earth fault, after one-point earth in exciting circuit, device will automatically take transverse differential protection switch to the time limit for action in the trip. So when the device acquire the one-point earth switch signal of the excitation circuit, transverse differential protection should act according to the setting time delay, otherwise no time delay action. Wire as the figure 6.4. Input 2 times of transverse differential protection current value to do the experiment, record the action time of the protection. MGPR-810Hc D13 B29 Current input Power supply D14 B30 The one-point earth switch signal of the -KM B01 Protection excitation circuit Output +KM B04 ms Figure 6.4 6.4 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 23 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 alarm and the alarm led will be lighten. When the protection has acted, the protection outputs of the corresponding protection measure output sequence should be on. 6.5 Check of CT failure CT failure function should be on, add single phase current which is greater than 0.1 times the rated current, and less than the load current, then it should report CT failure and light the alarm led. In the case of CT failure conditions, it should be block complex percentage differential protection. 6.6 Check of Non-electricity protection 6.6.1 Check of Excitation Fault When it short circuit B01 and B02 from the external, then it should report field fail and light the trip signal led, the protection outputs of the corresponding protection measure output sequence should be on. 6.6.2 Check of Water ride/Thermal equipment Fault When it short circuit B01 and B03 from the external, then it should report water ride/thermal equipment fault and light the trip signal led, the protection outputs of the corresponding protection measure output sequence should be on. 24 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 Addendum 1: Terminal diagram of the device I/O POWER CPU A C Input comon B01 point- B02 Excitation?Fault NET1 D01 Ia1 Ia1' D02 B03 Water ride/ThermalEquipment Fault Rotor one point D03 Ib1 Ib1' D04B04 earth Fault B05 Input 4 D05 Ic1 Ic1' D06 B06 Input 5 B07 Input 6 D07 Ia2 Ia2' D08 B08 Input 7 NET2 D09 Ib2 Ib2' D10 B09 Input 8 B10 Input 9 D11 Ic2 Ic2' D12 B11 Input 10 B12 D13 D14Input 11 IH IH' B13 Input 12 D15 D16 B14 Input 13 Run Light B15 Input 14 D17 D18 B16 Input 15 D19 D20 DEBUG D21 D22 D23 D24 A17 Spare Trip Node B17 Input 16 C01 GPS-A Note： A18 Spare Trip Node B18 Input 17 C02 GPS-B 1.Ia1, Ib1, Ic1 are A19 Trip Main Switch B19 Transverse C03 protective currents ofdifferential plate A20 Trip Main Switch B20 Differential generator side. protection plate C04 COM1A 2.Ia2, Ib2, Ic2 are A21 Trip Field?Discharge B21 Overhaul C05 COM1BSwitch protective currents of A22 Trip Field?Discharge B22 （+24V） C06 Shielded ground neutral point side.Switch Close Steam 3.IH is the current ofA23 Valve/Guide hydrofoil B23 Common terminal C07 COM2A transverse A24 Close SteamValve/Guide hydrofoil B24 Trip Signal C08 COM2B differential A25 Output 5 B25 Alarm Signal C09 DCS1+ protection. A26 B26 C10 DCS1- 4.COM1,COM2 are 485Output 5 interfaces;Net1,Net2 A27 Output 6 B27 Power off C11 DCS2+ are Ethernet A28 Output 6 B28 Power off C12 DCS2- interfaces. A29 Output 7 B29 Power 5.+24V on Power board is not the standard A30 Output 7 B30 Power configuration, it is A31 Output 8 B31 used as input power A32 Output 8 B32 Shielded ground supply only when using internal 24V. Figure 1 Terminal diagram of MGPR-810Hc microcomputer generator differential protection device 25 User’s manual of MGPR-810Hc generator differential protection device WLD[K]-JY-317-2018 Addendum 2: Typical wiring diagram of the device Ia1 Ia1'Ib1 Ib1'Ic1 Ic1' Ia2 Ia2'Ib2 Ib2'Ic2 Ic2' IH IH' generator side curent neutral point side current transversedifferential current AC plug-in unit Spare Trip Node Trip Main Switch Trip Field? Discharge Switch MGPR-810Hc generator Close Steam?valve/Guide Net1 differential protection device hydrofoil Output 5 Net2 Output 6 Debugging port Output 7 Output 8 COM1A COM1B Power plug-in unit Shielded ground COM2A COM2B DCSOut1+ DCSOut1- DCSOut2+ DCSOut2- Figure 2 Typical wiring diagram of MGPR-810Hc generator differential protection device 26 CPU plug-in unit Input common KM Transverseterminal- differential plate KM Excitation?fault Differentialprotection plate Water ride/Thermal? equipment Fault Overhaul Rotor one point 24V+ earth fault Signal common Input 4 terminal Input 5 Trip Signal Input 6 Alarm Signal Input 7 Input 8 Power off Input 9 Power off Input 10 Power+ Input 11 Power- Input 12 Input 13 Shielded ground Input 14 Shielded ground Input 15 Input 16 Input 17 I/O plug-in unit