User’s manual of MGPR-850Hc generator grounding protection device V1.04

Zhuhai Wanlida Electrical Automation Co., Ltd. http://www.zhwld.com User’s manual of MGPR-850Hc generator grounding protection device Prepared by： Li Chang Wen Proofed by： He Wenhui Approved by：Lin Cunli Document No.: WLD [K]-JY-319-2018 Version No.: V1.04.01 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-850Hc is the microcomputer generator grounding protection device, the structure type of MGPR-850Hc series protection is Hc. 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-850Hc generator grounding protection device WLD[K]-JY-319-2018 1. Product description 1.1 Scope of application MGPR-850Hc microcomputer generator grounding protection device applies to medium-small capacity generator protection, the device, MGPR-810Hc microcomputer generator differential protection device, MGPR-820Hc microcomputer generator backup protection measuring and control device together constitute a complete generator protection. 1.2 Function and specification 1.2.1 Protective function  Rotor 1-point grounding protection  Rotor 2-point grounding protection  Fundamental zero sequence voltage protection（stator grounding protection ）  Harmonic zero sequence voltage protection（stator grounding protection ）  Zero sequence over-current protection（stator grounding 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. 3 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 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 voltage.)  Collecting 2 ways of 4~20mA DC quantities for measurement of non-electric quantities, such as temperature, pressure, and realizing online monitoring. (optional)  Having perfect harmonic analysis 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: 4 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Current element: 0.1In~20In Voltage component：1V～120V Timing element: 0.00s~100.00s  Error of setting value: Current and voltage setting value: ≤±3% of setting value Rotor grounding protection operation error：when 1k～5k，error does not exceed±0.5k； when 5k～50k，error does not exceed ±10%；Rotor grounding protection delay error does not exceed±1% setting +1s； grounding position setting error of rotor 2-point grounding protection does not more than 10%.  Measuring accuracy 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 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. 5 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 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. 2. Function of device 2.1 Rotor grounding protection The device employs Ping-Pong switching theory, calculating the grounding resistance and grounding position by solving two different grounding circuit equations. The principle is shown in Fig.2-1. Which: S1, S2 are electronic switches controlled by microcomputer, Rg is the grounding resistor, a is the grounding position, E is the rotor voltage. Ra, Rb as the voltage lower voltage resistors, R1 as measuring resistor. Fig.2-1 Rotor grounding protection switching sampling principal diagram 6 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Calculate and store grounding position, and it is used for judging 2-point grounding. In order to prevent from misoperation and calculation overflow, startup logic is applied, E>30V. When Rg is smaller or equal to grounding resistance setting, rotor 1-point grounding operates after time delay, the output can be selected either alarm or trip. The protection is equipped with software control word, hard strap. The protection operation logic is as Fig.2-2. ON/OFF One point grounding & Protection output t/0 sequence R g ≤grounding resistance setting Fig.2-2 Rotor 1-point grounding protection operation logic 2.2 Rotor 2-point grounding protection If generator is 1-point grounding, it is not harmful to generator, if it is another point grounding, it would be a serious threat to the safety of generator. After 1-point fault occurs, the protection device will continue to measure the grounding resistor and grounding position, when another grounding occurs, the variation of a is detected, if the variation value △a is higher than setting, the device will judge that 2-point grounding occurs, the generator is tripped immediately. The protection is equipped with software control word, hard strap. The protection operation logic is shown in Fig.2-3. ON/OFF Two points grounding & t/0 Protection Rg ≤grounding resistance setting & t/0 output sequence △a >a set Fig.2-3 Rotor 2-point grounding protection operation logic 2.3 Stator grounding protection As stator circuit single phase grounding protection of generator, when any point of the stator of generator single phase grounding, the protection operates after the required delay, the output can be selected either signal or trip. Base frequency zero sequence voltage protects stator winding single phase grounding of 85％～95％ from generator terminal; 3rd order harmonic voltage protects stator winding single phase grounding around neutral point. 7 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Base frequency zero sequence voltage operation logic is as: ∣Un∣>Uop 3rd order harmonic voltage operation logic is as: Scheme 1：∣Us3∣≧Kz∣Un3∣ Scheme 2：∣Us3＋Kp﹡Un3∣≧Kz∣Un3∣ Either of the 2 schemes can be selected through protection ON/OFF setting. Uop is the base frequency zero sequence voltage setting; Un is neutral point TV, if there is no TV at neutral point, generator side base frequency zero sequence voltage may be used; Us3 and Un3 are generator side TV open-delta winding and 3rd order harmonics at neutral point TV output accordingly; Kp is the ratio balancing coefficient, Kz is restrain coefficient, they are different positive real numbers. Zero sequence voltage criterion and 3rd order harmonics criterion are equipped with their own output circuit, The protection is equipped with software control word, hard strap (Stator grounding plate). The protection operation logic is shown in Fig.2-4.1 and Fig.2-4.2. Us>setting value ON/OFF Protection & t/0 output Zero sequence Block ON/OFF sequence voltage of HV side<setting value Fig.2-4.1 Stator grounding base frequency protection operation logic Fig.2-4.2 Stator grounding harmonic protection operation logic 2.4 Zero sequence over-current protection As stator circuit single phase grounding protection of generator, when any point of the stator of generator single phase grounding, the protection operates after the required delay, the output can be selected either signal or trip. The zero sequence block voltage 8 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 and direction voltage used are acquired from generator terminal zero voltage, and zero sequence block and direction can be set to ON or OFF. The protection is equipped with software control word, hard strap (Stator grounding plate). The protection operation logic is shown in Fig.2-5. Fig.2-5 Zero sequence over-current protection operation logic 2.5 Fault Record It records the current waveform sampled by the device, for more information please refer to communication code table. 2.6 Network print Device supports network printing function, can print remote control information, SOE information and the setting parameter list. The printer IP address must been set rightly on the device (the network segment of printer must be as same as that of device IP addresses), then connect a printer, put on "real-time report print ", it can print the current remote control information or SOE information when device is connected to the back-ground (including remote communication shift, protection action), and can print the current SOE information when device is not connected to the background. In addition, when press the "ok" button in the "print report" or "print setting value" menu, it can print the all setting parameter or the all report information, including action value. 2.7 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. 2.8 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 9 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 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. 2.9 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) Earth Mode 0-1 00：No Earth, 01：Earth(major grounding), For harmonic calculation, select the corresponding Harmonic Channel 0-4 reference quantity: 0:exit from harmonic calculation function 1:Us,2:Un,3:Ug,4:I0 10 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Parameter Range Description 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 Set step:1（factory default 0）00：Normal；01：Test(set Rotor PROT Mode 0-1 rotor protection on debug status, in order to test zero-drift voltage of RU, EU, that is dRU, dEU) Set step:1（factory default 0）00：Scheme 1；01：Scheme Harmonic protection 0-1 2 program choice For harmonic zero sequence stator grounding protection 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: DA1~2 Channel 0: No D/A output 1:Us, 2:Un, 3:Ug 0-3 Selection Voltage reference quantity: 0-120V corresponding to 4mA-20mA DA1～2 Adjustment 0.05-1.5 Adjust D/A channel 1～2（4-20mA） parameters Factor Channel factor setting(Channel Coef.) Channel coefficient 1 0.500-5.000 Adjust channel 1 analog reference value（Us） Channel coefficient 2 0.500-5.000 Adjust channel 2 analog reference value（Un） Channel coefficient 3 0.500-5.000 Adjust channel 3 analog reference value（Ug） Channel coefficient 4 0.500-5.000 Adjust channel 4 analog reference value（I0） Channel coefficient 5 0.500-5.000 Adjust channel 5 analog reference value（magnetizing voltages） Channel coefficient 6 0.500-5.000 Adjust channel 6 analog reference value（switching voltage RU0） Channel coefficient 7 0.500-5.000 Adjust channel 7 analog reference value（switching voltage RU1） Channel coefficient 8 0.500-5.000 Adjust the coefficient of ground resistance Rg dRU, the zero-drift voltage of RU. The integer digit Channel coefficient 9 0.000-1.200 stands for sign bit, 1 stands for negative, 0 stands for positive; the fraction digits stand for data. dEU, the zero-drift voltage of EU. The integer digit Channel coefficient 10 0.000-1.200 stands for sign bit, 1 stands for negative, 0 stands for positive; the fraction digits stand for data. 11 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 3.2 List of setting values Setting value Range Description Rotor grounding section I (Rotor 1-point ) 1/0 1/0：on/off(factory default off) Ⅰ (Rotor grounding section II) Rotor 1-point 1/0 1/0：on/off (factory default off) Ⅱ Rotor 2-point 1/0 1/0：on/off (factory default off) Fundamental zero sequence protection (Fund.harm.ZS U) 1/0 1/0：on/off (factory default off) High voltage side zero sequence block (High-vol.ZS Lock) 1/0 1/0：on/off (factory default off) Harmonic zero sequence protection (Harm.ZS U) 1/0 1/0：on/off (factory default off) zero sequence over-current section I 1/0 1/0：on/off (factory default off) Zero sequence over-current section II 1/0 1/0：on/off (factory default off) Zero voltage block zero current (ZSV Lock ZSI) 1/0 1/0：on/off (factory default off) Zero sequence current section I direction 1/0 1/0：on/off (factory default off) Zero sequence current section II direction 1/0 1/0：on/off (factory default off) Rotor 1-point grounding 1-point Section I resistance setting(Rotor 1-point 1R) 1.0-50.0kΩ Set step:0.01 KΩ(factory default 50 kΩ) 1-point Section I time of delay (Rotor 1-point 1T) 1.0-10.0s Set step:0.01S(factory default 10s) 1-point Section II resistance setting Set step:0.01 KΩ(factory default 20 kΩ) (Rotor 1-point 2R) 0.5-20.0kΩ 1-point Section II time of delay Set step:0.01s(factory default 10s) (Rotor 1-point 2T) 1.0-10.0s Rotor 2-point grounding 2-point resistance setting 1.0-50.0kΩ Set step:0.01(factory default 50 kΩ) (Rotor Ground R) 2-point time of delay Set step:0.01S(factory default 50s) (Rotor Ground T) 1.0-50.0s Grounding position change △ a Set step:0.01(factory default 100) （％）(Ground P.Δa(%)) 1.0-100.0 Rotor 2-point T 1.0-50.0s Set step:0.01s(factory default 50s) Fundamental zero sequence stator grounding Fundamental harmonic voltage Set step:0.01V(factory default 120V) (Fund.Harm.U) 1-120V High voltage side block zero Set step:0.01V(factory default 120V) sequence voltage 1-120V (High-vol.ZS Lock) Fundamental harmonic delay Set step:0.01s(factory default 100s) (Fund.harm.T) 1-100s Harmonic zero sequence stator grounding Harmonic ratio Kz Set step:0.01 (factory default 2) (Harm. Ratio Kz) 0.5-2 12 Protection on/off word User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Setting value Range Description Third harmonic delay 1-10s Set step:0.01S(factory default 10s) (3rd harm.T) Balance coefficient Kp 0.2-4 Set step:0.01 (factory default 4) (Eq.Coef.Kp) Zero sequence current stator grounding Section I current setting 0.01-100.00A Set step:0.01A(factory default 2A) (ZS OC Value1) section I time of delay 0.1-100s Set step:0.01S(factory default 100s) (ZS OC T1) Section II current setting 0.01-100.00A Set step:0.01A(factory default 2A) (ZS OC Value2) Section II time of delay 0.1-100s Set step:0.01s(factory default 100s) (ZS OC T2) Zero sequence Set step:0.01V(factory default 50V) voltage block of Zero sequence over-current 1-50V (ZS Voltage Lock) Zero sequence Set step:0.01º(factory default 359 º) over-current direction sensitive angle 0-359º (Dir.Sen.Angle) 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 Terminal D01, D02 Generator terminal Add 50V， displayed deviation not exceed±1% zero sequence voltage Terminal D03, D04 Neutral point side Add 50V， displayed deviation not exceed±1% zero sequence voltage Terminal D05, D06 High voltage side zero Add 50V， displayed deviation not exceed±1% sequence voltage Terminal D07, D08 Zero sequence current Add 2A， displayed deviation not exceed±1% Note: The following six items can be inspected in [Channel coefficients setting] in [System parameters], they are only used for factory testing and setting. Please set according to the following order. Excitation voltage must not be added, set all rotor grounding protection to OFF, set rotor Not add magnetizing grounding protection to debug state, save system RU zero-drift voltage voltage parameter, reenter menu[Channel coefficient 9],set according to dRU displayed to channel coefficient 9. For example, if it is -0.025V, just 13 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Analog quantity Analog quantity Test method terminal name set as 1.025; if it is 0.028V, just set as 0.028.(Note: The integer digit stands for sign bit, if absolute value of zero-drift exceeds 0.2V, it is recommended to replace the AC board). The Setting method of channel coefficient 10 is Not add magnetizing EU zero-drift voltage the same with that of channel coefficient 9. After voltage setting，set rotor protection operating mode on 0. Add DC 100V， displayed deviation not exceed Terminal D09, D11 Magnetizing voltage 2%；there is deviation，adjust channel coefficient 5. In menu, set rotor 1-point or rotor 2-point protection to on and short connect terminals D11, Switching voltage D13, add positive DC100V to D09, D11，check Terminal D09, D11 RU0 in【channel coefficient 6】, it should display 1.32V，deviation should not exceed 0.01V；if there is deviation，adjust channel coefficient 6. In menu, set rotor 1-point or 2-point protection to on and short connect D09, D13，add positive Switching voltage DC100V to D09, D11 ， check in 【 channel Terminal D09, D11 RU1 coefficient 7】，should display 1.32V，deviation not exceed 0.01V；if there is deviation，adjust channel coefficient 7. Under menu, set rotor 1-point or 2-point protection to on and connect resistance 10KΩ between D11, D13，add positive DC100V to Terminal D09, D11, Adjust grounding D09, D11，check in 【channel coefficient 8】， D13 resistance coefficient it should display 10KΩ，deviation not exceed 0.5KΩ； if there is deviation，adjust channel coefficient 8. Note: After setting above, test positive to shaft grounding and negative to shaft grounding, if deviation of the 2 resistances are high, firstly fine-tune channel coefficient 6, 7, after the deviation becomes low, fine-tune channel coefficient 8. 14 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 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 - （Should be connected to DC220V or DC110V negative terminal of external power supply） B02 Input 1 B03 Input 2 B04 Input 3 External power supply of 220V or 110V DC B05 Input 4 can be applied, connect the negative terminal B06 Input 5 to terminal B01, positive terminal to terminal B07 Input 6 B02～B21, in [Binary input] menu in the B08 Input 7 [Run States], the status of binary input can be B09 Input 8 seen. B10 Input 9 The device also has a 24V DC supply, if B11 Input 10 it is used, terminal B22 can be connected to B12 Input 11 terminal B02～B21, in [Binary input] menu B13 Input 12 in the [Run States], the status of binary input B14 Input 13 can be seen. B15 Input 14 Please note about the binary input voltage B16 Input 15 upon ordering, it is set to DC220V by default. B17 Input 16 B18 Rotor 2-point strap B19 Rotor 1-point strap B20 Stator grounding strap 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 A17-A18 Spare Trip Node Select open and close menu, use “+”, 15 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 A19-A20 Trip Main Switch “-” key to operate and test the A21-A22 Trip Field Discharge Switch corresponding terminals. Close Steam valve/Guide A23-A24 hydrofoil Rotor 1-point grounding A25-A26 output A27-A28 Output 6 A29-A30 Output 7 A31-A32 Output 8 B23-B24 Trip Signal B23-B25 Alarm Signal 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), spare, 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 16 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 “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. 01.Run States -1/5- Main menu 05.Report Dis. -1/5- Protection Data Trip Report Binary Input Binary Report Soft Strap 01.Run Status Event Report Harmonic Data 02.Run Parameters Print Report AD Volt. Data 03.Setting View 06.Parameters -1/9- Comm. Setting 02.Run Param. -1/3- B. Parameters  Setting Zone No. 04.Setting Value D/A Setting PROT On/Off Clock Setting 05. Report Manage Channel Coe. Language Select 06. SYS Parameters 03.Setting View-1/6-  Rotor 1-point Ⅰ 07.Device Test 07.DeviceTest. -1/2-  Output Test Lamp Test Rotor 1-point Ⅱ 08.PassWord ...... 09.Version Info. 08.Password □□□□ 04.Setting Value-1/6- 10.Comm Test  Rotor 1-point Ⅰ PROT AUTO DEV V2.00 Type:MGPR-850Hc Rotor 1-point Ⅱ 10.Comm test ...... Input Test ID:□□.□□.□□ Measure 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 protection data, binary input, soft strap, harmonic data, AD voltage data. It is described as follows: PROT Data -1/9- Us = □□□·□□ V 000.0° Un = □□□·□□ V Secondary value of generator terminal zero 000.0° sequence voltage, neutral point zero Ug = □□□·□□ V sequence voltage, high voltage side zero 000.0° sequence voltage, zero sequence vo current I0 = □□□·□□ A secondary value 000.0° Us3 =□□□·□□ V They are generator terminal zero sequence Un3 = □□□·□□ V voltage 3rd order harmonics, neutral point zero E = □□□·□□ V sequence voltage, Magnetizing voltage, rotor Rg = □□□·□□ kΩ grounding resistance, rotor grounding position a = □□□·□□ % 17 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Binary Input -1/20- Input 1 :□ Standby binary input Input 2 :□ Input 3 :□ Input 4 :□ Input 5 :□ ...... Description varies with model, see corresponding terminal Transverse differential strap :□ diagram for details D ifferential protection strap :□  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 -1/11- Rotor1-pointⅠ Off Rotor 1-point Ⅱ Off ...... Harmonic Data -1/10- 2nd ： □□□·□□% 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 -1/11- Parameter Modify Rotor1-poinⅠ On Off ◇Enter ◆Cancel 18 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 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 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 19 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Us = □□□·□□ V Un = □□□·□□ V Ug = □□□·□□ V I0 = □□□·□□ A Us3 = □□□·□□ V Un3 = □□□·□□ 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 -1/9- Comm. Setting Transformer Coe. B. Parameters D/A Setting Channel Coe. Language Select  Communication Setting Comm. setting -1/7- 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: -1/8- Rating Current □□ Setting the CT secondary current rating 00: 5A. 01: 1A Harmonic Channel Setting analog quantity channels 0~4 for harmonic monitoring, select 0 □□ Wave Record to exit from the harmonic calculation function □□ ...... 20 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018  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.  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 Trip Main Switch Press “Enter” key Spare Trip Node Trip Field Discharge Switch On Off Close Steam valve/Guide hydrofoil Note: …… Node:A17,A18 Open Operate All Press “Cancel” key (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. 21 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 PROT AUTO DEV V2.00 Type:MGPR-850Hc ID:□□.□□.□□ CRC:□□□□□□□□ Date:2017-12-20 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 rotor 1-point grounding protection Wire as Fig 6-1，set rotror1-point grounding sectionⅠ, Ⅱ to on，set hard strap to on. （Optional, if input requires external terminals B19）Set and take down as Tab 6-1，test operating resistance. connect terminal S to terminal D09 D11 respectively，adjust resistor to reduce resistance till protection operates. When protection op（erates, terminals corresponding to 1-point grounding protection output control word should be connected. Tab.6-1 1-point grounding resistance setting(KΩ) 10.00 20.00 50.00 Connect S to Operating value (KΩ) D09 Error (%) Connect S to Operating value D11 (KΩ) Error (%) MGPR-850Hc B29 + D09 DC 100V Power supply D11 B30 － S D13 50KΩ Fig. 6-1 6.2 Check of rotor 2-point grounding protection Wire as Fig 6-2，set rotor 2-point grounding protection to on，set hard strap to on.. （Optional, if input requires external terminals B18）When protection operates，terminals corresponding to rotor 2-point grounding output control word should be connected. Set and take down as Tab 6-2，test operating resistance and the change of grounding position. Notice that resistor R0 of slip-line rheostat should be 100～300, power should be higher 22 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 than U2/R0. Fig. 6-2 Tab.6-2 Rotor 2-point grounding resistance setting(KΩ) 10.00 20.00 50.00 Operating value (KΩ) Error (%) Rotor 2-point grounding △a setting( ) 10 20 30 ％ Operating value (％) Error (%) 6.3 Check of fundamental and harmonic stator grounding protection 6.3.1 Check of fundamental zero sequence voltage protection Wire as Fig 6-3，set fundamental zero sequence voltage protection to on. When protection operates，terminals corresponding to protection output control word should be connected. Set and take down as Tab 6-3，test operating zero sequence voltage. Tab.6-3 Setting (V) 20.00 30.00 Add Un Operating value (V) Error (%) MGPR-850Hc Us D01 B29 D03 Un Power supply D05 B30 Ug (N) D02(04, 06) Fig. 6-3 Fig. 6-3 23 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 6.3.2 Check of harmonic zero sequence voltage protection Wire as Fig 6-3，set harmonic voltage protection to on. When protection operates， terminal corresponding to protection output control words should be connected. Set and take down as Tab 6-4，test operating zero sequence voltage . Tab.6-4 Setting (Kz) 2 2 Setting (Kp) 1 1.5 Add the third Operating value (Us3) harmonic of Us and Un Error (%) Operating value (Un3) Error (%) 6.4 Check of zero sequence over-current stator grounding protection Wire as Fig 6-4，set zero sequence over-current section I, II to on，set hard strap protection to on. （Optional, if input requires external terminals B20）Set and take down as Tab 6-5，test operating zero sequence current. When protection operates，terminal corresponding to zero sequence over-current protection output control words should be connected. Tab.6-5 Zero sequence over-current setting (A) 0.50 1.00 1.50 Operating value(A) Error (%) MGPR-850Hc Us D01 B29 Us’ D02 Power supply I0 D07 B30 I0’ D08 Fig. 6-4 24 User’s manual of MGPR-850Hc generator grounding protection device WLD[K]-JY-319-2018 Addendum 1: Terminal diagram of the device I/O POWER CPU A C Input comon B01 point- B02 Input 1 NET D01 Us Us' D02 B03 Input 2 D03 Un Un' D04 B04 Input 3 B05 Input 4 D05 Ug Ug' D06 B06 Input 5 B07 Input 6 D07 I0 I0' D08 B08 Input 7 NET2 D09 Excitation B09 Input 8 voltage+ D10 B10 ExcitationInput 9 D11 voltage- D12 B11 Input 10 B12 D13 D14Input 11 Shaft 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 注： A18 Spare Trip Node B18 Two points of C02 GPS-B 1.Us is zero sequencerotor plate voltage of generator end A19 Trip Main Switch B19 One points ofrotor plate C03 Stator side.A20 Trip Main Switch B20 grounding plate C04 COM1A 2.Un is zero sequence A21 Trip Field?Discharge B21 Overhaul C05 COM1B voltage of neutral side.Switch Trip Field?Discharge 3.Ug is zero sequenceA22 Switch B22 （+24V） C06 Shielded ground voltage of main A23 Close SteamValve/Guide hydrofoil B23 Common terminal C07 COM2A transformer HV side. A24 Close Steam B24 Trip Signal C08 COM2B 4.I0 is zero sequenceValve/Guide hydrofoil curent of generator end A25 One point ofrotor Output B25 Alarm Signal C09 DCS1+ side. A26 One point ofrotor Output B26 C10 DCS1- 5.COM1,COM2 are 485 interfaces;Net1,Net2 are A27 Output 6 B27 Power off C11 DCS2+ Ethernet interfaces. A28 Output 6 B28 Power off C12 DCS2- 6.+24V on power board is A29 B29 Power not the standardOutput 7 configuration, it is A30 Output 7 B30 Power used as input power A31 Output 8 B31 suply only when using internal 24V. A32 Output 8 B32 Shielded ground Figure 1 Terminals diagram of MGPR-850Hc microcomputer generator grounding protection device 25