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GE 90.017.102, Instruction Manual

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GE 90.017.102 Instruction Manual Download Page 138

GEK-106426B

MIB High Impedance Bus Differntial Relay 

9-3

9 INSTALLATION AND MAINTENANCE

9.3 MAINTENANCE

9

9.3MAINTENANCE

Given the important role that protection relays play in the operation of any installation, a periodic program of tests is highly
recommended. The unit incorporates built-in diagnostic functions that permit immediate identification, with only the aid of
keypad and display, of some of the most likely circuit failures. It is recommended that the unit be tested at least every 5
years. Although the built-in diagnosis does not reduce the average time between failures, it increases the availability of
the protection because it allows a drastic reduction in the average interruption time involved in detecting and repairing the
failure.

Summary of Contents for 90.017.102

Page 1: ... E gemultilin ge com Internet www GEMultilin com Copyright 2006 GE Multilin MIB High Impedance Bus Differential Relay Instruction manual GEK 106426B GE Multilin Avda Pinoa 10 48170 Zamudio SPAIN T 34 94 485 88 00 F 34 94 485 88 45 E gemultilin euro ge com g GE Consumer Industrial Multilin ...

Page 2: ...8 2 5 2 MINIMUM FAULT TO TRIP 87 2 9 2 6 MULTIPLE SETTING GROUPS 2 7 MEASUREMENT AND SELF TEST 2 7 1 MEASUREMENT 2 14 2 7 2 SELF TEST 2 14 2 8 USER INTERFACE 2 8 1 LED TARGETS 2 15 2 8 2 KEYPAD AND DISPLAY 2 15 2 8 3 COMMUNICATION PORTS 2 16 2 8 4 SOFTWARE 2 16 2 9 ORDERING CODES 2 10 TECHNICAL SPECIFICATIONS 2 10 1 PROTECTION ELEMENTS 2 18 2 10 2 METERING FUNCTIONS 2 18 2 10 3 INPUTS 2 18 2 10 4 ...

Page 3: ...4 3 4 2 3 PROPERTIES 4 4 4 2 4 GET INFO FROM RELAY 4 4 4 2 5 SEND INFO TO RELAY 4 4 4 2 6 PRINT SETUP 4 5 4 2 7 PRINT PREVIEW 4 5 4 2 8 PRINT 4 6 4 2 9 CLOSE 4 6 4 3 SETPOINT 4 3 1 SETTINGS 4 7 4 3 2 MAIN SETTINGS 4 9 4 3 3 ADVANCED SETTINGS 4 9 4 3 4 RELAY CONFIGURATION 4 10 4 3 5 LOGIC CONFIGURATION 4 12 4 3 6 CLOCK 4 13 4 4 ACTUAL 4 4 1 ACTUAL VALUES 4 14 4 4 2 EVENT RECORDER 4 15 4 4 3 WAVEFOR...

Page 4: ...7 4 7 4 OPERATIONS 7 4 1 ONE KEY OPERATION AND LAST TRIP DATA 7 6 7 4 2 HMI PASSWORD 7 6 8 RELAY COMMISSIONING 8 1 VISUAL INSPECTION 8 2 COMMENTS ON THE TEST EQUIPMENT 8 3 RELAY SETTING 8 4 WIRING AND NECESSARY EQUIPMENT 8 5 TARGET LEDS 8 6 POWER SUPPLY TEST 8 7 COMMUNICATIONS 8 8 RELAY SETTING 8 9 CONTACT INPUTS 8 10 CONTACT OUTPUTS 8 11 RELAY METERING 8 11 1 CURRENT METERING 8 11 8 12 DIFFERENTI...

Page 5: ...ITING SETTINGS A 4 1 FRAME STRUCTURE 10 9 A 4 2 SETTING CHANGE CONFIRMATION 10 10 A 4 3 EXAMPLE OF SETTING CHANGE 10 11 A 5 EVENTS A 5 1 FRAME STRUCTURE 10 14 A 6 OSCILLOGRAPHY A 7 ERRORS A 8 USED FORMATS B MODEM CONNECTION B 1 HAYES MODEM B 2 V 25BIS MODEM B 3 SAMPLES OF SETTINGS FOR PARTICULAR MODEMS B 3 1 SPORTSTER FLASH X2 MODEM HAYES 11 4 B 3 2 ZOOM PKT14 4 11 5 B 3 3 MODEM SATELSA MGD 2400 D...

Page 6: ...ing chapter for information to help guide you through the initial installation procedures of your new relay CAUTION THE OPERATOR OF THIS INSTRUMENT IS ADVISED THAT IF THE EQUIPMENT IS USED IN A MANNER NOT SPECIFIED IN THIS MANUAL THE PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED INSTALLATION MUST BE ACCORDING TO THE NATIONAL ELECTRIC CODE OF THE APPROPRIATE COUNTRY ...

Page 7: ...or physical damage Check the label at the side of the relay and check that the relay model is the same model ordered Figure 1 1 RELAY IDENTIFICATION LABEL MIB Ensure that the mounting screws have been included with the relay For product information instruction manual updates and the latest software updates please visit the GE Multilin Home Page www GEindustrial com multilin ...

Page 8: ...tech euro ge com AMERICA ASIA AND AUSTRALIA GE MULTILIN 215 Anderson Avenue L6E 1B3 Markham ON CANADA Tel 1 905 294 6222 Fax 1 905 201 2098 E mail multilin tech ge com The information provided herein does not intend to cover all details of variations of the equipment nor does it take into account the circumstances that may be present in your installation operating or maintenance activities Should ...

Page 9: ...ON If you want to communicate with the relay using a computer through the front serial port please ensure that the computer is grounded to the same ground as the relay In case of using a portable computer it is recommended to not have it connected to its power supply as in many cases they are not correctly grounded either due to the power supply itself or to the connector cables used Powering the ...

Page 10: ...k the Install Now button and follow the installation instructions to install the no charge EnerVista software 3 When installation is complete start the EnerVista Launchpad application 4 Click the IED Setup section of the Launch Pad window Figure 1 3 5 In the EnerVista Launch Pad window click the Add Product button and select the relay from the Install Software window as shown below Select the Web ...

Page 11: ...n is selected choose from the list the software program related to the specific model and click the Download Now button to obtain the installation program 7 When EnerVista detects that there is already a version of the program in the Software Library you can choose whether to install it directly or to check for more versions Figure 1 5 ...

Page 12: ...e different versions of set up program from the Web Figure 1 6 9 EnerVista Launchpad will obtain the installation program from the Web If the version you already have is the last one on the Web the following screen will appear Figure 1 7 10 If there were more versions on the Web EnerVista will then show the user the different setup programs available for upgrade with their version size and release...

Page 13: ...alled in the directory indicated and the installation program will automatically create icons and add ENERVISTA MII SETUP to the Windows start menu 14 Follow the on screen instructions to install the ENERVISTA MII SETUP software When the Welcome window appears click on Next to continue with the installation procedure Figure 1 8 15 When the Choose Destination Location window appears and if the soft...

Page 14: ...rogram group where the application will be added to is shown in the Selected Program Folder window Click Next to begin the installation process and all the necessary program files will be copied into the chosen directory Figure 1 10 17 To finish with the installation process select the desired language for startup Figure 1 11 ...

Page 15: ...ntial Relay GEK 106426B 1 2 ENERVISTA MII SETUP SOFTWARE 1 GETTING STARTED 1 18 Click Finish to end the installation The MII device will be added to the list of installed IEDs in the EnerVista Launchpad window as shown below Figure 1 12 ...

Page 16: ...he relay s RS485 port from a computer s RS232 port a RS232 RS485 converter box is required GE Multilin offers F485 DAC300 and RS232 485 converters This converter box is connected to the computer using a straight through serial cable A shielded twisted pair 20 22 or 24 AWG 0 25 0 34 or 0 5 mm2 cable is used to connect the converter box to the relay rear communication terminals The converter box GND...

Page 17: ... Differntial Relay GEK 106426B 1 3 MII RELAY FAMILY HARDWARE 1 GETTING STARTED 1 Figure 1 13 RELAY KEYPAD AND DISPLAY Using this keypad it is possible to access all the different menus in the relay and to view and change settings ...

Page 18: ...t value for each phase Idiff1 Idiff2 Idiff3 Pressing the Menu button accesses the second level To access information within the same hierarchical level horizontal movement push the up down arrow buttons To access the third level push the Enter button when the desired heading is shown in the display To return back to the previous level from the third to the second level or from the second to the fi...

Page 19: ...1 14 MIB High Impedance Bus Differntial Relay GEK 106426B 1 4 USING THE KEYPAD AND DISPLAY 1 GETTING STARTED 1 ...

Page 20: ...ion Units 87 1 and 87 2 CONTROL Reset 86 Close METERING Differential currents INPUTS OUTPUTS Programmable digital inputs and outputs Up to 3 Differential current inputs COMMUNICATIONS Front RS232 port Rear RS485 port USER INTERFACE 2x16 LCD Display 6 LEDs 4 programmable SECURITY Access password for setting changes Local access priority OTHERS 1 Oscillography record 24 Event recorder ...

Page 21: ...ing the necessary settings and the resulting sensitivity to low current bus faults is very simple and straightforward requiring only knowledge of the CT secondary excitation characteristics and their secondary impedance For the best possible results all CTs should have the same rating and should have a characteristic similar to a bushing CT with a distributed secondary winding that has little or n...

Page 22: ... 106426B MIB High Impedance Bus Differntial Relay 2 3 2 PRODUCT DESCRIPTION 2 2 INTRO 2 Figure 2 1 SINGLE LINE DIAGRAM BUS BAR APPLICATION MIB 30 Figure 2 2 SINGLE LINE DIAGRAM GENERATOR APPLICATION MIB 30 ...

Page 23: ... High Impedance Bus Differntial Relay GEK 106426B 2 2 INTRO 2 PRODUCT DESCRIPTION 2 Figure 2 3 SINGLE LINE DIAGRAM REACTANCE APPLICATION MIB 30 Figure 2 4 SINGLE LINE DIAGRAM ONE WINDING RGF APPLICATION MIB 10 ...

Page 24: ...GEK 106426B MIB High Impedance Bus Differntial Relay 2 5 2 PRODUCT DESCRIPTION 2 2 INTRO 2 Figure 2 5 SINGLE LINE DIAGRAM TWO WINDING RGF APPLICATION MIB 20 ...

Page 25: ...en the access is local by the RS232 port the back port is disabled and the relay will not serve any petition or command sent by the rear port When the access is local by keypad the back port is not disabled and actual values can be read but setting changes and operations will not be allowed by the back port Setting changes either by keypad and display or by communications are password protected th...

Page 26: ...receive the differential currents corresponding to phase A B and C The elements will measure the three differential currents and operate if any of them surpass the pickup setting during the specified time delay For a one grounded winding transformer RGF application these elements will receive the differential current corresponding to the ground connection in one winding and operate if it surpass t...

Page 27: ...6 margin factor RE stabilizing resistance 2000 Calculations need only be made with the maximum value of IF for single phase and three phase faults If the relay is applicable for these conditions it will perform satisfactorily for all faults The pessimistic value of voltage determined by the equation for any of the methods outlined is never realized in practice The CT in the faulted circuit will no...

Page 28: ...um internal fault current required for the particular 87 pickup setting Where IMIN Minimum internal fault current to trip 87 n Number of breakers connected to the bus i e number of CTs per phase I Secondary excitation current of individual CT at a voltage equal to pickup level of 87 IR Pickup level in 87 unit I1 Current in the MOV unit at 87 pickup level N CT ratio The values of I 1 I 2 etc are ob...

Page 29: ...is number is higher than 24 maximum number of events stored this means that only the last 24 will be stored This event record is stored in a capacitor backed up RAM memory Events functionality in MIB is performed via the ENERVISTA MII SETUP software Inside the ADVANCED SETTINGS group there is a sub group called EVENT MASKS from where the different causes that can produce events can be masked They ...

Page 30: ...of oscillo is a circular counter that increases with each generated oscillography This value appears on the relay status and is used only for informative purposes The oscillography record is stored in a capacitor backed up RAM memory MIB functionality related to oscillography is performed from the ENERVISTA MII SETUP program The oscillography record obtained is stored on the PC in a COMTRADE IEEE ...

Page 31: ...f the protection functions 3 Oscillography trigger by communications 4 Oscillography trigger by digital input In the ADVANCED SETTINGS group there is a sub group called OSCILLOGRAPHY MASKS from where the above mentioned causes can be masked They are detailed in the SETPOINT SETPOINT ADVANCED SETTINGS OSCILOGRAPHY MASK section ...

Page 32: ... active at a given time Users can select which setting group is active using a setting sending a command to the relay from the communications program or by a digital input Settings are divided in two different categories Main Settings and Advanced Settings This makes setting the relay extremely simple for those users who want to use just the Main functions of the MIB relay Users who require the fu...

Page 33: ...al values for differential currents Accuracy is 1 at nominal current and 3 in the complete range 2 7 2 SELF TEST Self monitoring tests are carried out both when the unit is started up and during normal operation Any internal problem detected by the self monitoring function will issue an alarm and the READY output contact will be released indicating an out of service condition ...

Page 34: ... 10 and MIB 20 87 1 Trip Indicates that the trip has been issued by 87 1 87 2 Trip Indicates that the trip has been issued by 87 2 87 1 Pickup Indicates that element 87 1has picked up 87 2 Pickup Indicates that element 87 2 has picked up MIB 30 87 A Trip Indicates that the trip has been issued by 87 1 or 87 2 for phase A 87 B Trip Indicates that the trip has been issued by the 87 1 or 87 2 for pha...

Page 35: ...to 19200 bps Up to 32 MIB relays can be connected daisy chained on the same communication circuit Each relay must be assigned a different Modbus Address using a setting if multiple relays are connected on the same circuit 2 8 4 SOFTWARE MIB units are supplied together with ENERVISTA MII SETUP software a Windows based software that allows communication with the relay for data viewing and retrieval ...

Page 36: ...cify the relay is provided in the following table ACCESSORIES A depth reducing collar can be ordered separately This collar reduces the mounting depth in 63 mm 2 48 inches MIB 0 C E 0 0 0 0 0 DESCRIPTION Number of High Impedance Differential Elements 1 1 winding transformer Restricted Ground Fault application 2 2 winding transformer Restricted Ground Fault application 3 Bus machine application Pow...

Page 37: ...e Delay Timing Accuracy Reset Type Fundamental 1 A 0 005 to 0 400 A in steps of 0 01 A 97 to 98 typical 3 in the complete range 1mA 15 ms at 4 x pickup 0 00 to 600 00 sec in steps of 0 01 s 3 of operate time or 20ms whichever is greater at 1 03 x pickup Instantaneous 2 10 2 1 CURRENT Accuracy 3 1mA in the complete range 2 10 3 1 AC CURRENT Rated Current Frequency CT Current Withstand 50 60 Hz 3 Hz...

Page 38: ...umption Max 10 W Proper backup time date time and log memory without power supply voltage 1 week 2 10 4 3 LOW RANGE HID MODULE Rated DC Voltage Min Max DC Voltage 48 Vdc 38 57 Vdc 2 10 4 4 HIGH RANGE HID MODULE Rated DC Voltage Min Max DC Voltage Power consumption 125 Vdc 100 150 Vdc 8W 2 10 5 1 OUTPUT RELAYS Configuration 6 Electro Mechanical Form C Contact Material Silver alloy suited for induct...

Page 39: ... Vdc 16 A 48 A 2 6 A 125W 125 Vdc 16 A 48 A 0 6 A 75 W 250 Vdc 16 A 48 A 0 5 A 125 W AC Resistive 120 Vac 16 A 48 A 16 A 1920 VA 250 Vac 16 A 48 A 16 A 4000 VA AC Inductive PF 0 4 250 Vac 10 A 30 A 10 A 1000 VA FRONT PORT RS232 300 600 1200 2400 4800 9600 or 19200 bps Modbus RTU REAR PORT RS485 300 600 1200 2400 4800 9600 or 19200 bps Modbus RTU Operating Temperatures 20º C to 60º C Ambient Storag...

Page 40: ... MODULE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2 11 1 VOLTAGE LIMITERS STABILIZING RESISTORS TECNOLOGY MOV METAL OXYDE VARISTOR Nominal Voltage VDC Nominal Voltage VAC Nominal Current DC Pick Voltage Pick Current Power Dissipation Nominal Power Absorption 350 V 290 V 4 7 mA 50 1900 V 10 A 8 W 5400 J Resistance with latching relay 20 x 100 SAC 2k 75W ...

Page 41: ... nominal voltage Pickup value 60 of nominal voltage OPERATING TIME at nominal voltage Close time N O contact 25 ms Open time N C contact 20 ms CONTACTS Continuous current 10 A continious 20 A during 1 minute 200 A during 1 second Make and carry 30 A Breaking 5000 VA non inductive at 250 Vac 375 W inductive at 125 Vdc 250 W inductive at 250 Vdc DIELECTRIC WITHSTAND Between independent circuits 2500...

Page 42: ...ectromagnetic fields with amplitude modulation ENV 50140 10 V m Radiated Electromagnetic fields with amplitude modulation Common mode ENV 50141 10 V m Radiated Electromagnetic fields with frequency modulation ENV 50204 10 V m Fast Transients ANSI IEEE C37 90 1 IEC 60255 22 4 BS EN 61000 4 4 IV IV IV Magnetic fields at industrial frequency EN 61000 4 8 30 AV m Power Supply interruptions IEC 60255 1...

Page 43: ...2 24 MIB High Impedance Bus Differntial Relay GEK 106426B 2 11 TECHNICAL SPECIFICATIONS FOR HID MODULE 2 PRODUCT DESCRIPTION 2 ...

Page 44: ...IEW The MIB system incorporates electronic components that might be affected by electrostatic discharge currents flowing through certain component terminals The main source of electrostatic discharges is human body especially under low humidity conditions with carpet floors or isolating shoes If such conditions are present special care should be taken while manipulating MIB modules Operators befor...

Page 45: ...c stainless steel case The case contains a metallic panel to which the MOV Metal Oxide Varistors and the stabilizing resistors are hooked as well as the connections base for the latching relay and internal connections among the stabilizing resistors MOV and latching relay contacts Components are mounted on a base screwed to the rear side of the case The module is closed with the frontal plate wher...

Page 46: ...s Differntial Relay 3 3 3 HARDWARE 3 2 HIGH IMPEDANCE MODULE DESCRIPTION 3 Wiring is made in the rear side of the module Drilling dimensions are shown on the drilling dimension diagram Figure 3 3 DIMENSIONS AND DRILLING FOR HID MODULE ...

Page 47: ...its high highly resistant to corrosion It is made of stainless steel AISI 304 coated with an epoxy layer and the rest of the metallic pieces are covered with a high quality resistive coating that has successfully passed at least 96 hours in the salt spray chamber S N ASTM B 117 As well an IP52 IEC 529 protection degree against dust and water through the front and with the relay mounted in the pane...

Page 48: ...H IMPEDANCE MODULE DESCRIPTION 3 3 2 3 REAR DESCRIPTION The relay is wired through the terminal blocks located at the rear of the unit The maximum recommended cable section for this terminal board with the appropriate terminal is 6 mm2 AWG 10 Figure 3 4 REAR TERMINALS DIAGRAM ...

Page 49: ...EK 106426B 3 3 WIRING 3 HARDWARE 3 3 3WIRING 3 3 1 TYPICAL WIRING DIAGRAM Recommended cable section 12 16 AWG Copper conductor only Tightening torque 1 2 Nm Figure 3 5 TYPICAL WIRING DIAGRAM FOR MIB RELAY Figure 3 6 TYPICAL WIRING DIAGRAM FOR RELAY ...

Page 50: ... WIRING 3 3 3 2 CONTROL POWER CAUTION CONTROL POWER SUPPLIED TO THE RELAY MUST MATCH THE RATED VOLTAGE OF THE RELAY IF THE VOLTAGE IS APPLIED TO THE WRONG TERMINALS DAMAGE MAY OCCUR Table 3 1 CONTROL POWER VOLTAGE RANGE RANGE OPERATION RANGE LO 38 4 57 6 Vdc HI 100 150 Vdc ...

Page 51: ...ber of High Impedance Differential Elements is 1 the HID will have only one input If the Number of High Impedance Differential Elements is 2 the HID will have two inputs and If it is Bus machine application it will have three inputs Figure 3 7 MIB CURRENT INPUTS Current flows through stabilizing resistor into current input of the overcurrent module Once high speed overcurrent module trips latching...

Page 52: ...ater through the front and with the relay mounted in the panel The modular design of the relay simplifies repair or replacement of its components without the need to manipulate the wiring These types of operations must be performed exclusively by qualified personnel and only after removing auxiliary voltage from the unit 3 4 2 MOUNTING The high speed overcurrent module is secured to the panel with...

Page 53: ...cted to the relay common negative terminal A10 The maximum external voltage source voltage for this arrangement is 300 Vdc The voltage threshold at which an input will detect a closed contact input depends on the relay model For low voltage range relays LO model the threshold is set to 12 Vdc For high voltage range relays HI model the voltage threshold is 75 Vdc In case of using AC voltage it must...

Page 54: ... All output relays are form C relays All output relays are form C relays Only one of the two states of the form C relay is connected to the output terminal For each output relay it is possible to select which state is preferred to have at the terminals NC normally closed or NO normally open Next figure shows the PCB of a MIB relay and the location of the jumpers used to select the configuration of...

Page 55: ...d groups In this case the number of outputs is reduced to three Jx jumper is closed in the factory default configuration It is possible to order relays with Jx removed The figure shows the factory default configuration with Jx Jumper closed It is located on the soldering part of the PCB containing the inputs and outputs Figure 3 12 JX JUMPER The Jx jumper is a tin solder jumper easy to remove usin...

Page 56: ...ntact combining OUT1 and OUT2 Group 2 Terminals B9 A7 OUT3 Standard output contact Terminals B10 A7 OUT4 Standard output contact 3 4 6 1 OUTPUT CONFIGURATION AT TERMINALS B8 B7 To have a normally open contact across terminals B7 B8 configure OUT1 and OUT2 as shown bellow Remove JX internal jumper Keep OUT1 and OUT2 as normally open contacts factory default conf Using the PC software configure the ...

Page 57: ...3 14 MIB High Impedance Bus Differntial Relay GEK 106426B 3 4 HIGH SPEED OVERCURRENT PROTECTION MODULE 3 HARDWARE 3 Figure 3 13 OUT2 AND OUT1 CONFIGUTATION TO ACT AS A NORMALLY OPEN CONTACT ...

Page 58: ...s required to use this interface is a personal computer running the ENERVISTA MII SETUP software Next figure shows the communications cable configuration Figure 3 14 RS232 FRONT PORT CONNECTION WARNING IN ORDER TO PREVENT DAMAGE BOTH TO THE PC SERIAL COMMUNICATIONS PORT AND THE RELAY FRONT RS232 PORT IT IS COMPULSORY TO CONNECT THE RELAY GROUND TO THE SAME GROUND AS THE PC OTHERWISE USE AN UNGROUN...

Page 59: ...amed and As a general rule terminals A should be connected to terminals and terminals B to There are exceptions to this rule such as the GE ALPS and DDS family of relays The GND terminal should be connected to the common wire inside the shield when provided Otherwise it should be connected to the shield To avoid loop currents the shield should be grounded at one point only Each relay should also b...

Page 60: ... configure monitor and manage all MIB features a Setting files ENERVISTA MII SETUP software provides two ways of working with setting files 1 In off line mode disconnected from the relay creating or editing setting files for a future download to the relay 2 Modifying directly the relay settings while connected to the relay b Configuration The configuration of inputs outputs and LEDs can be modifie...

Page 61: ...g Otherwise communication may not be possible or the relay and or the computer could be damaged To work online the relay communication parameters e g baud rate relay address and password must match the parameters in the computer The computer parameters can be modified in the Communication Computer menu Refer to the appropriate section in this same chapter for more details 4 1 3 MAIN SCREEN The mai...

Page 62: ...relay model matching exactly the relay model to which the settings and configuration will later be downloaded The mentioned settings and configuration are related to the default factory settings of the relay Figure 4 2 Once the relay model is selected the software will load the relay structure and will enable the Setpoint Actual Communication View and Help menus for configuration 4 2 2 OPEN Option...

Page 63: ...igure 4 3 Figure 4 3 4 2 4 GET INFO FROM RELAY The File Get info from relay option enables the user to save the relay settings in a file on the hard disk of the computer This file can later be opened offline to review and modify settings and send them again to the relay after the modifications 4 2 5 SEND INFO TO RELAY The File Set info to relay option enables to send to the relay a settings file s...

Page 64: ... the the settings print out It is also provides a quick view of all the relay settings at a glance without having to navigate through the different menu trees From this screen it is also possible to configure the printer that will be used or to directly print the document Double clicking on the document with the left mouse button will enlarge the document view and double clicking with the right bu...

Page 65: ...GEK 106426B 4 2 FILE 4 COMMUNICATIONS 4 4 2 8 PRINT The File Print option prints the relay settings using Windows default active printer 4 2 9 CLOSE The File Close option exits the program It does not prompt for confirmation or save the open file ...

Page 66: ...his division is to simplify the use of the relay for those users only requiring the basic functionality of the relay Figure 4 6 SETTINGS MENU Once in the corresponding sub menu either Main Settings or Advanced Settings the procedure to enter and modify any setting value is the same Select the settings group the function selected in the example is the 51P Function in a MIF II Edit the setting doubl...

Page 67: ...ate clicking with the mouse on the option desired Numerical Settings For Numerical settings a number must be entered The program shows the minimum and maximum value for each setting and it will not accept any value out of the corresponding range Settings with a set of options For set of options settings a pop up window is shown containing all possible values Select the appropriate one clicking on ...

Page 68: ...oups Group 1 is available in the Main Settings group while Group 2 can be accessed in the Advanced Settings group The setting groups can be selected by digital input through a communications command or from the ENERVISTA MII SETUP or simply selecting it with the relay keypad The setting that shows the active group can be found in General Advanced Settings 4 3 3 ADVANCED SETTINGS 4 3 3 1 ADVANCED G...

Page 69: ...of the different columns is explained below INPUT LED OUTPUT Designates the respective element I O configuration the appearance and function of this column can be depending on the state of the respective OR checkbox column OR checkbox is not checked the element consists of a drop down list in which the user can select the function that will activate the output or LED or that will be activated by t...

Page 70: ...ll actuate when the conditions are NOT fulfilled NAME the user can write an identifying label of up to 4 characters that will get stored to be displayed later on BLINK only for LEDs the selection of BLINK checkbox makes the LED blink alternatively switch ON and OFF instead of being fixed when it is activated MEMORY only for outputs and LEDs when MEMORY checkbox is enabled the respective element wi...

Page 71: ...D gate The way they are programmed is similar to the way I Os are refer to relay configuration The device will not take into account entries that are after an empty one This means that every entry after the first empty one will be ignored For example if L1 IN1 is programmed but L1 IN2 is left empty the relay will not take into account L1 IN3 and will directly evaluate L1 IN4 In the same way the re...

Page 72: ...w with two choices Sending the PC date and time to the unit this is synchronizing the PC and the unit Selecting a date and a time and sending it to the relay Figure 4 14 CLOCK Once the new date and time have been sent the user can check in the status graph or even in the relay itself that the new date time has been correctly entered ...

Page 73: ...ll as additional information There is a vertical scroll bar to navigate up and down the table to reach the desired information Relay model number and firmware version Relay internal date and time Values of currents voltages and powers phase and ground Protection function status pickup trip for each function Active settings group number Contact inputs and outputs status and LEDs status Information ...

Page 74: ...tc and a list of the status of all inputs outputs and functions during the event Additionally the program also shows current and voltage values for all phases and ground frequency and single line sequence voltage during the event Figure 4 16 EVENTS WINDOW The retrieved events can be reviewed in this window or also saved to disk to be opened with ENERVISTA MII SETUP program or exported to CSV Comma...

Page 75: ... option the user can start the process to retrieve the Oscillography record stored in the relay The program will request the path and filename where the file is to be stored by means of the following form Figure 4 17 OSCILLOGRAPHY RECORD This file can be viewed using GE_OSC software the use of this software is described in manual GEK 105596 ...

Page 76: ... 106426B MIB High Impedance Bus Differntial Relay 4 17 4 COMMUNICATIONS 4 5 OPERATIONS 4 4 5OPERATIONS From Operations menu the user can perform all possible operation commands Figure 4 18 OPERATIONS MENU ...

Page 77: ...erform a ModBus communication troubleshooting or to update the relay with a new firmware After making any change pressing Store button saves the changes without exiting the window Pressing OK saves and exits and pressing Cancel exits without saving changes 4 6 1 COMPUTER In COMPUTER dialog the user can configure the necessary adjustments to communicate with the relay from a PC Figure 4 19 COMMUNIC...

Page 78: ...and a new box appears at the right to configure the IP address the port number and the unit id Figure 4 20 MODBUS TCP SETUP MODEM CONNECTION for modem serial connection The modem configuration options appear at the right when this option is chosen Defaults button returns the values to the factory default ones 4 6 1 2 COMMUNICATION CONTROL In COMMUNICATIONS CONTROL box the user can view the communi...

Page 79: ... will appear Figure 4 22 COMMUNICATION CONTROL COMMUNICATING 4 6 1 3 COMMUNICATION OPTIMIZATION COMMUNICATIONS OPTIMIZATION box allows the user to enter values to control device response to communication attempts Changing these parameters can improve communication although it is recommended not to make changes to the default values if it is not required Figure 4 23 COMMUNICATION OPTIMIZATION i i e...

Page 80: ...only the active window the one with all the communication parameters Yes means capturing the whole screen and No means capturing only the communications window Then a new window appears allowing to view the captured screen to save the captured file in BMP or JPG format or to print it the print dialog window will appear so as the user can select which printer to use and enter the appropriate printe...

Page 81: ...he type of data to read Setpoints Actual Values the number of registers the length of each register is of 2 bytes and the format of the data integer long float checking the checkbox at the left to make the PC start polling that address or unchecking it to stop In the lower part data can be sent to writeable addresses of the relay The working is similar to reading but to send the data the user must...

Page 82: ...ption is active only when there is no active communication with the relay If the PC is communicating with the relay the user must switch communication off in Communication Computer menu to activate this option When this option is selected a window appears asking for the new firmware version file to be uploaded to the relay Figure 4 26 FLASH UPDATE FILE After selecting the file that will be used to...

Page 83: ...e memory update Desired model option after memory update In a case where more than one unit needs to be updated all the serial numbers must be detailed and a different password will be assigned for each unit Figure 4 28 PASSWORD If the update does not require changes to the functionality of the relay the program will not request a password After completing the previous screen and during the loadin...

Page 84: ...ding to a higher model OPTION 1 or 2 may involve a MODBUS memory map change This may result a critical issue when the relay is integrated in a system and the user should take into account the modifications that will have to be performed in the programs that access the MIF II relay memory maps Additionally when a Flash memory update is performed the loading program will enter the default settings T...

Page 85: ...ve when the PC is communicating with the relay If the communication is not established to activate this option the user must switch communication on in Communication Computer menu When TRACES are active the ModBus communication traces will be displayed in the lower part of the screen as shown in Figure 4 31 Figure 4 31 MODBUS TRACES ...

Page 86: ...st switch communication on in Communication Computer menu With MODBUS MEMORY MAP option the user can extract the complete memory map from the relay and print or save it in CSV format to be later opened with any database or spreadsheet program as MS Excel It is recommended to use this feature as memory map changes with relay model and firmware version so this is the safest way of obtaining the appr...

Page 87: ...MMUNICATIONS 4 4 7 3 LANGUAGES LANGUAGES option is only active when there is no active communication with the relay If the PC is communicating with the relay to activate this option the user must switch communication off in Communication Computer menu Figure 4 33 LANGUAGES ...

Page 88: ...e relay through any of the relay communications ports and the ENERVISTA MII SETUP program The use of the keypad to modify settings is described in Chapter 8 If the computer is used to handle the settings the following steps must be considered Make sure your communication cable matches the scheme shown in Figure 3 14 Connect the communications cable between the relay or modem and the computer seria...

Page 89: ...5 2 MIB High Impedance Bus Differntial Relay GEK 106426B 5 2 MAIN SETTINGS 5 SETTINGS 5 5 2MAIN SETTINGS 5 2 1 PRODUCT SETUP ...

Page 90: ...GEK 106426B MIB High Impedance Bus Differntial Relay 5 3 5 SETTINGS 5 3 ADVANCED SETTINGS 5 5 3ADVANCED SETTINGS 5 3 1 DIFFERENTIAL ELEMENT 87 1 5 3 2 DIFFERENTIAL ELEMENT 87 2 ...

Page 91: ...5 4 MIB High Impedance Bus Differntial Relay GEK 106426B 5 3 ADVANCED SETTINGS 5 SETTINGS 5 5 3 3 GENERAL ADVANCED ...

Page 92: ...GEK 106426B MIB High Impedance Bus Differntial Relay 5 5 5 SETTINGS 5 3 ADVANCED SETTINGS 5 5 3 4 DIFFERENTIAL ELEMENT 87 1 GROUP 2 5 3 5 DIFFERENTIAL ELEMENT 87 2 GROUP 2 ...

Page 93: ...ip 87 2 Trip YES Y N NA General trip General trip YES Y N NA 87 1 Disable by input 87 1 Disable by input YES Y N NA 87 2 Disable by input 87 2 Disable by input YES Y N NA General Trip enable disable by digital input Trip disabled by DI YES Y N NA Protection status in service out of service Protection status YES Y N NA Digital output1 active non active Output 1 YES Y N NA Digital output 2 active no...

Page 94: ...ILLOGRAPHY MASK ENERVISTA MII SETUP DEFAULT RANGE STEP Oscillography Trigger by communications Oscillo by communic NO Y N NA Oscillography Trigger by digital input Oscillo by digital input NO Y N NA Oscillography Trigger by tripping Oscillo by tripping NO Y N NA Oscillography Trigger by pickup Oscillo by pickup NO Y N NA ...

Page 95: ... SYNCHRONIZATION MIB includes an internal clock to time tag events This clock can be either synchronized with the computer clock or set manually using the ENERVISTA MII SETUP software program see Setpoints Clock It can also be set to a given Date and Time using the faceplate keypad DATE TIME menu entry ...

Page 96: ...id PULSE input is over 0 015 seconds Input elements are divided into three groups besides the No definition one Up to eight elements can be configured to be activated by the same input providing that they are all in the same group Elements belonging to different groups need to be assigned to different inputs In order to configure an input with more than one element from the same group we must firs...

Page 97: ... I 0 CONFIGURATION 6 assigned to the input and all of them have been inverted Finally to validate the selected configuration the user must click on the OK button both in the OR ASSIGNMENT and the I O CONFIGURATION screens Figure 6 2 INPUT CONFIGURATION WITH MORE THAN ONE FUNCTION OR ...

Page 98: ...ser must simply open the I O configuration selection list of the desired input Once opened all possible configuration functions will be shown and the user will then be able to select one of them To invert the selected function the user must click on the NOT checkbox to the right of the functions menu Figure 6 3 SIMPLE ACTION INPUT CONFIGURATION ONE ELEMENT ASSIGNMENT In the example above Input 2 h...

Page 99: ... Trip Disable by DI Disable the operation of the trip contact INPUTS 86B Input B type contact of the latching relay 86A Input A type contact of the latching relay Trip Contact Close PULSE Activates trip contact Group Change If the input is activated the active settings group will be group 2 If it is not activated the active settings group will be the adjusted in General Advanced Settings Sett Chan...

Page 100: ... belonging to the same group can be assigned to the same output LED Elements of different groups need to be assigned to different outputs LEDs In order to assign several elements to activate an output LED we first activate the OR button next click on the I O CONFIGURATION frame and select the desired element group then choose the desired elements In order to invert an element select the NOT button...

Page 101: ... 87 2 B Pickup Pickup of phase B second level differential function 87 2 C Pickup Pickup of phase C second level differential function 87 2 Pickup Pickup of second level differential function any phase PICKUP 2 General Pickup Pickup of any of the above mentioned functions TRIP READY 1 87 1 A Virtual Trip Phase A first level differential function there is a trip condition 87 1 B Virtual Trip Phase ...

Page 102: ...setting This signal can be used to activate LEDs or auxiliary outputs If the user wants the protection unit to trip then the trip enable setting must be activated In this case the relay will activate the trip contact MISCELLANEOUS 2 Close Breaker Active when the close breaker operation is performed MIXED 2 ACTIVE GROUP Settings group 2 is active Local Active when the relay display is inside MAIN S...

Page 103: ...6 8 MIB High Impedance Bus Differntial Relay GEK 106426B 6 2 OUTPUTS AND LEDS CONFIGURATION 6 I 0 CONFIGURATION 6 ...

Page 104: ...elay and can be digital inputs outputs status and others or internal information as the firmware revision Main settings and advanced settings comprise product setup communications and protection elements adjustments Operations are the available commands that can be performed in the relay These types of messages are located within a menu structure that groups the information into categories This ch...

Page 105: ...s the three phase and neutral currents If the relay is not showing the main screen you can return to it from any other screen by pressing the Escape key as many times as necessary until exiting the menu structure From the main screen the Menu key enters the menu structure From that point on the user can navigate through the menu structure using Up and Down arrows to move horizontally Enter to ente...

Page 106: ...modified simultaneously pressing Escape arrow Escape up arrow increases the contrast Escape down arrow decreases the contrast If the keypad is not in use during 15 minutes the display turns automatically off and returs to the main screen Pressing ESC RESET key the display is automatically turned on and it shows the main screen with phase and ground Pressing any other key corresponding screen in th...

Page 107: ...3 LEDS The two LEDs in the first row Ready and Trip are not configurable For MIF II relays Option 1 or Option 2 the other four LEDs by default Phase Ground Inst and Pickup are configurable by the user using ENERVISTA MII SETUP program See Chapter 4 for more information on how to configure LEDs The color of the four LEDs in rows 2 and 3 can be changed between red and green in any relay model The wa...

Page 108: ...w to select Enter to confirm RED GREEN Enter p COLOR LEDs MENU LED2 RED Press up or down arrow to select Enter to confirm RED GREEN Enter p COLOR LEDs MENU LED3 GREEN Press up or down arrow to select Enter to confirm RED GREEN Enter p COLOR LEDs MENU LED4 RED Press up or down arrow to select Enter to confirm RED GREEN Enter p Main Screen Ia 0 0 Ib 0 0 Ic 0 0 mA ...

Page 109: ...rform a RESET operation display must be in main screen showing phase and ground currents in this situation pressin ESC RESET key for more than 3 seconds a RESET operation will be performed 1 Day month 7 4 2 HMI PASSWORD The MIB relay allows settings protection by password This password is called HMI password and is disabled by default value 0 If you change this value to other than 0 the HMI passwo...

Page 110: ...then be disabled for 15 minutes after the last setting change is made to the relay or until a reset operation the same as to reset LEDs pressing Esc for more than 3 seconds from the main screen is performed The password can be modified in the Main Settings Product Setup HMI password menu The relay then asks for the current password Once it has been entered the relay asks for the new password Here ...

Page 111: ... SERIAL NUMBER 20 345 589 Relay Name MIB Phase A Diff Current 0 00 Phase B Diff Current 0 00 Phase C Diff Current 0 00 Frequency 0 00 Input 1 0 Input 2 0 Output 1 0 Output 2 0 Output 3 0 Output 4 0 86 Status 0 MIB MAIN SETTINGS ENTER ESC ENTER ESC MAIN SETTINGS PRODUCT SETUP Relay Operation READY DISABLE Frecuency 50 60 HMI Password 0 9999 Comm Password 1 255 Slave Address 1 255 Comm Baud Rate 0 3...

Page 112: ... MAIN SETTINGS 87 1 Function 87 1 Enable Yes No 87 1 Trip Enable Yes No 87 1 Pickup Level 0 005 0 4 87 1 Time Delay 0 600 ENTER ESC MENU MIB MAIN SETTINGS ENTER ESC 87 2 Enable Yes No 87 2 Trip Enable Yes No 87 2 Pickup Level 0 005 0 4 87 2 Time Delay 0 600 MAIN SETTINGS 87 2 Function ENTER ESC ...

Page 113: ...ERAL ADVANCED ENTER ESC ENTER ESC ADVANCED SETTINGS 87 1 Function Group 2 GENERAL ADVANCED Settings Group 1 2 Trip Min Time 50 300 87 1 Enable Yes No 87 1 Trip Enable Yes No 87 1 Pickup Level 0 005 0 4 87 1 Time Delay 0 600 ENTER ESC ADVANCED SETTINGS 87 2 Function Group 2 87 2 Enable Yes No 87 2 Trip Enable Yes No 87 2 Pickup Level 0 005 0 4 87 2 Time Delay 0 600 ...

Page 114: ...ER ESC LEDS RESET ENTER TO CONFIRM ACTIVATE TABLE 1 OPERATION OK ACTIVATE TABLE 1 IN PROCESS ACTIVATE TABLE 2 OPERATION OK RESET 86 OPERATION OK OPERATIONS ACTIVATE TABLE 2 OPERATIONS RESET 86 ENTER ESC ENTER ESC ACTIVATE TABLE 2 ENTER TO CONFIRM ACTIVATE TABLE 2 IN PROCESS RESET 86 ENTER TO CONFIRM RESET 86 IN PROCESS CLOSE 86 OPERATION OK OPERATIONS CLOSE 86 ENTER ESC CLOSE 86 ENTER TO CONFIRM C...

Page 115: ...7 12 MIB High Impedance Bus Differntial Relay GEK 106426B 7 4 OPERATIONS 7 KEYPAD AND DISPLAY 7 ...

Page 116: ...NING 8 1 VISUAL INSPECTION 8 8 RELAY COMMISSIONING 8 1VISUAL INSPECTION Unpack the relay and verify that no parts are broken and that the relay has not suffered any damage during transit Verify that the model number indicated on the faceplate corresponds to the model ordered ...

Page 117: ...k up current as well as for the time for which the relay operates according to the curve under test It is important to stress that the test accuracy depends on the power supply network conditions as well as on the instruments used Functional tests carried out under inappropriate power supply conditions or using inappropriate instruments can be used for ensuring that the relay works roughly correct...

Page 118: ... will not be given here Just the specific settings required for each test are indicated and it can be supposed that the other settings do not affect the test being performed We must take into account that these tests are only valid for the default factory configuration Different configurations involving modifications in certain elements such as different contact configuration will require a subseq...

Page 119: ...nally it is advisable to have a PC available with the ENERVISTA MII SETUP software installed Relay wiring diagram Connect the relay as shown in Figure 8 1 For safety reasons the external protection earth terminal should be securely grounded Supply the unit through terminals H1 and H2 at the rated DC voltage Figure 8 1 TEST CONNECTIONS FOR MIB RELAY MIB H1 H2 H5 H6 Phase MIH Module X Y A C1 C2 B C3...

Page 120: ...B MIB High Impedance Bus Differntial Relay 8 5 8 RELAY COMMISSIONING 8 5 TARGET LEDS 8 8 5TARGET LEDS Check that pressing the ESC RESET button for more than 3 seconds all the front target LEDs light up and reset ...

Page 121: ...hat the relay can communicate with the PC program in case you are using the relay connected to a PC Voltage test and maximum consumption is shown below Shown values are only illustrative as due to the nature of the internal power supply switched power supply the consumption currents are high frequency currents and the meters used measure these values with a poor accuracy GENERAL SETTINGS Relay Sta...

Page 122: ... offers DAC300 F485 or RS232 485 converters The communications parameters that have to be set in the computer should match the relay communication settings The factory default settings for the MIB relay are Using the ENERVISTA MII SETUP program communicate with the relay and in the Status window check that the communications are not lost at any time Perform this test on both communications ports C...

Page 123: ...lowing tests Since the MIB relay has a large number of settings a list of all the settings necessary for all tests will not be given here but rather only the specific settings required for each test indicated These tests are only valid for the default factory configuration Different configurations involving modifications in certain elements such as different contact configuration will require a su...

Page 124: ...A10 and A9 A10 Check that when voltage is applied to one contact input only this input gets active and the other one remains inactive Use the INFORMATION menu on the faceplate or a PC and the ACTUAL VALUES menu in the ENERVISTA MII SETUP program Actual Actual Values to easily check which input gets active for each test Repeat this test at minimum and maximum permissible voltages ...

Page 125: ...t terminals A5 A6 and auxiliary output OUT2 terminals A7 B8 and OUT4 terminals A7 B10 close and the PICK UP LED4 OP 87B LED2 and TRIP LEDs light up Inject a current through phase C terminals equal to 0 1 amp1 x In phase to trip the relay Check that the trip output terminals A5 A6 and auxiliary output OUT2 terminals A7 B8 and OUT4 terminals A7 B10 close and the PICK UP LED4 OP 87C LED3 and TRIP LED...

Page 126: ...ETERING 8 8 11RELAY METERING 8 11 1 CURRENT METERING Set the relay to the same frequency than the AC source used and apply the following currents Check that the relay measures Ia Ib and Ic with an accuracy better than 5 PHASE 1 2 3 Ia Amps 0 2 amps phase Ib Amps 0 1 amps phase 0 3 amps Ic Amps ...

Page 127: ...LEVEL 1 F87 1 Enable only 87 1 function Set its time delay and pickup to 0 1 A With 0 9 times the pickup current the relay should not trip With 1 1 times the pickup current the relay should trip in between 10 to 50 ms With 4 times the pickup current the relay should trip in less than 15 ms The test should be carried out for phases A B and C ...

Page 128: ...LEVEL 2 F87 2 Enable only 87 2 function Set its time delay and pickup to 0 1 A With 0 9 times the pickup current the relay should not trip With 1 1 times the pickup current the relay should trip in between 10 to 50 ms With 4 times the pickup current the relay should trip in less than 15 ms The test should be carried out for phases A B and C ...

Page 129: ...CHRONIZATION 8 RELAY COMMISSIONING 8 8 14TIME SYNCHRONIZATION Synchronize the relay date and time with the PC using the ENERVISTA MII SETUP communications program SETPOINT CLOCK Check using the keypad and display that the relay is actually in synchronism with the computer ...

Page 130: ...ust be grounded For verifying isolation independent groups will be created and voltage will be applied as follows 2500 RMS volts will be applied progressively among all terminals in a group short circuited between them and the case during one second In case the Hi Pot device used to test the relay trips due to excessive consumption apply the test between each group and ground one at a time 2500 RM...

Page 131: ...ntacts operation time is below 25 ms Verify that all auxiliary contacts have changed their position to closed and that there is continuity between each pair of them Apply voltage to terminals B9 and B12 and verify that latching relay contacts opening time is below 20 ms Check that all auxiliary contacts have changed to their default position open and therefore there is no continuity between each p...

Page 132: ...SER VALUE RANGE STEP FIRST LEVEL DIFFERENTIAL FUNCTION 87 1 FUNCTION F 87 1 First Level 87 Enable 87 1 Enable ENABLE 87 1 Y N NA Permission to Trip First Level 87 87 1 Trip Enable TRIP 87 1 Y N NA First Level 87 Tap Pickup Value 87 1 Pickup Level TAP 87 1 0 005 0 04 A 0 01 A First Level 87 Definite Time Delay 87 1 Time Delay TIME 87 1 0 600 00 s 0 01 s SECOND LEVEL DIFFERENTIAL FUNCTION 87 2 FUNCT...

Page 133: ...Trip Enable TRIP 87 1 G2 Y N NA First Level 87 Tap Pickup Value 87 1 G2 Pickup Level TAP 87 1 G2 0 005 0 04 A 0 01 A First Level 87 Definite Time Delay 87 1 G2 Time Delay TIME 87 1 G2 0 600 00 s 0 01 s GROUP 2 SECOND LEVEL DIFFERENTIAL FUNCTION 87 2 FUNCTION GROUP2 F87 2 G2 Second Level 87 Enable 87 2 G2 Enable ENABLE 87 2 G2 Y N NA Permission to Trip Second Level 87 87 2 G2 Trip Enable TRIP 87 2 ...

Page 134: ...ble by input Y N 87 2 Disable by input 87 2 Disable by input Y N General Trip enable disable by digital input Trip disabled by DI Y N Protection status in service out of service Protection status Y N Digital output1 active non active Output 1 Y N Digital output 2 active non active Output 2 Y N Digital output 3 active non active Output 3 Y N Digital output 4 active non active Output 4 Y N Digital i...

Page 135: ...8 20 MIB High Impedance Bus Differntial Relay GEK 106426B 8 17 ADVANCED SETTINGS 8 RELAY COMMISSIONING 8 ...

Page 136: ...ee place with no vibrations It should also be well lit to facilitate inspection and testing Operational conditions as defined in section 3 must not be exceeded in any case The relay should be mounted on a vertical surface Figure 3 3 shows the diagram for panel drilling and mounting Given that the design of the MIB unit is based on high performance digital technology it is not necessary to recalibr...

Page 137: ...tem work correctly This connection should be as short as possible preferably 25 cm or less to guarantee maximum protection In this way capacitors that are internally connected between the inputs and ground divert high frequency disturbances directly to ground without passing through the electronic circuits with the result that the circuits are perfectly protected In addition this connection also g...

Page 138: ...orporates built in diagnostic functions that permit immediate identification with only the aid of keypad and display of some of the most likely circuit failures It is recommended that the unit be tested at least every 5 years Although the built in diagnosis does not reduce the average time between failures it increases the availability of the protection because it allows a drastic reduction in the...

Page 139: ...MAINTENANCE 9 9 4CLEANING INSTRUCTIONS In case of detecting accumulated pollution the unit can be cleaned with a clean cloth either dry or slightly dampened with a cleaner containing alcohol Abrasive cleaners must be avoided as these can damage the metallic surface or the electrical connection elements ...

Page 140: ... to memory addresses can vary depending on the model and firmware revision Therefore please make sure that the memory map is the appropriate one for the model and firmware version installed To make this easier for the user the communications software supplied with MII family units EnerVista MIIPC includes a tool that allows to extract the memory map of any MII family module connected to the comput...

Page 141: ...ll go last The message request command is generated as follows Request Reply Example Reading 75 registers 150 bytes beginning from address 04FEH 1278 Request Reply FIELD LENGTH Relay address 1 Byte Function 1 Byte 03h Beginning address 1 word High Byte Low Byte Number of registers 1 word High Byte Low Byte CRC 1 word FIELD LENGTH Relay address 1 Byte Function 1 Byte 03h No of bytes 1 Byte Value of...

Page 142: ...here must be an address where to write the corresponding operation code This address is 0 0000H for every operation The data to be written must be in Intel format this means that the order of the bytes must be inverted from lower weight to higher weight The only exceptions for this rule are texts which are in reading order Motorola format In each case the order is specified The available commands ...

Page 143: ...e format is Float32 In the rest of cases this 4th register is not used Reply FIELD LENGTH Relay address 1 byte Function 1 byte 10H Beginning address 1 word 000H High byte low byte Number of registers 1 word 0001H High byte low byte Number of bytes 1 byte 02H Value of the registers Register1 Command code Low byte High byte CRC 1 word FIELD LENGTH Relay address 1 byte Function 1 byte 10H Beginning a...

Page 144: ...mpedance Bus Differntial Relay A 5 APPENDIX A A 2 COMMAND EXECUTION A Relay address 1 byte Function 1 byte 10H Beginning address 1 word 0000H High byte low byte Number of registers 1 word 0003H High byte low byte CRC 1 word ...

Page 145: ... CONFIRMATION The operation confirmation code for Group 2 activation is 16 10h In this case it is necessary to send the relay password in this example its value is 1 Request Reply ADDRESS FUNCTION BEGINNING REGS BYTES DATA0 CRC 01H 10H 0000H 0001H 02H 0F00H A3A0H ADDRESS FUNCTION BEGINNING REGS CRC 01H 10H 0000H 0001H 01C9H ADDRESS FUNCTION BEGINNING REGS BYTES DATA0 DATA1 DATA2 CRC 01H 10H 0000H ...

Page 146: ...1st of May 1999 at 10 01 04 224 this is 107 690 464 224 milliseconds from the base date time 107 690 464 224 Decimal 00 19 12 DA 13 E0 Hexadecimal Reordering to send the lowest weight byte first E0 13 DA 12 19 00 FIELD LENGTH Relay address 1 byte 00H broadcast Function 1 byte 10H Beginning address 1 word 0000H High Byte low byte Number of registers 1 word 0004H High Byte low byte Number of bytes 1...

Page 147: ... There are three steps to write a setting 1 Execute a selection command using the corresponding code See command execution 2 Change the setting 3 Execute a confirmation command using the corresponding code See command execution The ModBus function used for setting modifications is 16 PRESET MULTIPLE REGISTERS ...

Page 148: ... Relay address 1 byte Function 1 byte 10H Beginning address 1 word High Byte low byte Number of registers 1 word High Byte low byte Number of bytes 1 byte Value of the registers Low byte high byte CRC 1 word FIELD LENGTH Relay address 1 byte Function 1 byte 10H Beginning address 1 word 0000H High Byte low byte Number of registers 1 word 0001H High Byte low byte CRC 1 word ...

Page 149: ...H High Byte low byte Number of registers 1 word 0003H High Byte low byte Number of bytes 1 byte 06H Value of the registers Register1 Command code 0200H Low byte High byte Register2 Relay password Low byte High byte Register3 Constant value 0000H CRC 1 word FIELD LENGTH Relay address 1 byte Function 1 byte 10H Beginning address 1 word 0000H High Byte low byte Number of registers 1 word 0003H High B...

Page 150: ...x 00 End of the chain The remaining characters are not considered Data1 5354 S T Data5 xxxx Data2 494E I N Data6 xxxx Data3 4700 G 00 00 End of string Data7 xxxx Reply ADDRESS FUNCTION BEGINNING REGS BYTES DATA0 CRC 01H 10H 0000H 0001H 02H 0100H A7C0H ADDRESS FUNCTION BEGINNING REGS CRC 01H 10H 0000H 0001H 01C9H ADDRESS FUNCTION BEGINNING REGS BYTES 01H 10H 0128H 0008H 10H ADDRESS FUNCTION BEGINNI...

Page 151: ...ay GEK 106426B A 4 WRITING SETTINGS APPENDIXA A CONFIRMATION Request Reply ADDRESS FUNCTION BEGINNING REGS BYTES DATA0 DATA1 DATA2 CRC 01H 10H 0000H 0003H 06H 0200H 0100H 0000H E69EH ADDRESS FUNCTION BEGINNING REGS CRC 01H 10H 0000H 0003H 8008H ...

Page 152: ...ts is 14H In the same operation it is possible to delete some of the events The number of events to delete must be specified in the 4th register sent in the frame if no event has to be deleted send this 4th register with value zero 0000H Deleting events is a good way to confirm that an event is not read twice The size of each stored event will be different depending on the module type and the memo...

Page 153: ...w byte No of registers 1 Word 0001H High byte Low byte CRC 1 Word FIELD LENGTH Relay address 1 Byte Function 1 Byte 03H No of bytes 1 Byte 02H Register value 1 Word low byte high byte CRC 1 Word FIELD LENGTH Relay address 1 Byte Function 1 Byte 10H Initiation address 1 Word 0000H High byte Low byte No of registers 1 Word 0001H High byte Low byte No of bytes 1 Byte 02H Value of registers Register1 ...

Page 154: ...lue of registers No of bytes 2 words High byte Low byte CRC 1 Word FIELD LENGTH Relay address 1 Byte Function 1 Byte 10H Initiation address 1 Word 0000H High byte Low byte No of registers 1 Word 0004H High byte Low byte No of bytes 1 Byte 08H Value of registers 4 Words Register1 Command code 1400H Low byte High byte Registers 2 3 Relay password Byte 3 byte 2 byte 1 byte 0 Register4 VALUE Low byte ...

Page 155: ... by DI 194 12 2 F4 Settings group change by DI 198 12 2 F4 Oscillo trigger by DI 199 12 2 F4 86 Status 201 12 2 F4 Oscillo trigger by communications 202 12 2 F4 Setting change 205 12 2 F4 EEPROM error 206 12 2 F4 User settings 0 factory default 1 when the first change is made to any setting 207 12 2 F4 Pickup 87 1_A 208 13 2 F4 Pickup 87 1_B 209 13 2 F4 Pickup 87 1_C 210 13 2 F4 Pickup 87 1 211 13...

Page 156: ...put 4 0 8284 Input 1 1 8285 Input 1 0 8286 Input 2 1 8287 Input 2 0 8290 Settings change disabled by digital input 8291 Settings change enabled 8292 Trip operation by digital input 8300 Active group group 2 8301 Active group Settings group 8302 Oscillography trigger by digital input 8308 Oscillography trigger by communications 8314 Settings change 8316 EEPROM failure 8318 User settings 8319 Factor...

Page 157: ...frequency oscillo number The oscillography buffer starting addresses and lengths are defined in the memory map of each module See attached table for a reference 4 Send a Close Oscillography command in a similar way as for operation confirmation The code to close oscillography is 12H The information remains in memory and it is not necessary to delete it because only one oscillography can be stored ...

Page 158: ...up 79 4 15 2 F4 87 1 Disable by input 83 5 3 2 F4 87 2 Disable by input 87 5 7 2 F4 Trip disable by input 95 5 15 2 F4 87 1 A trip 96 6 0 2 F4 87 1 B trip 97 6 1 2 F4 87 1 C trip 98 6 2 2 F4 87 1 trip 99 6 3 2 F4 87 2 A trip 100 6 4 2 F4 87 2 B trip 101 6 5 2 F4 87 2 C trip 102 6 6 2 F4 87 2 trip 103 6 7 2 F4 General trip 111 6 15 2 F4 Trip contact physical status 1 closed 0 open 120 7 8 2 F4 Alar...

Page 159: ... to be stored in the relay as the closing of this window does not involve a deletion of the information However only one oscillography window will be stored and when a new one is created the previous one will be deleted Reply from the relay VALUES AT THE MOMENT OF THE OSCILLOGRAPHY TRIGGER MIB RELAY MEMORY POSITION BIT DESCRIPTION LENGTH BYTES FORMAT Idiff_a when the oscillography was triggered 4 ...

Page 160: ...duce an error in the slave the following frame is received We can receive the following values in the error code field ADDRESS FUNCTION 80 H COD ERROR CRC 01H 90H 07H 0DC2H 01 ILLEGAL FUNCTION 02 ILLEGAL DATA ADDRESS 03 ILLEGAL DATA VALUE 04 SLAVE DEVICE FAILURE 05 ACK 06 SLAVE BUSY 07 NEGATIVE ACKNOWLEDGE 08 MEMORY PARITY ERROR ...

Page 161: ...re e In this case e 133 5º The remaining bits are m In this case m 100 0111 1111 0011 0011 0011 In decimal 0 565 approx The weights of bits for calculating m are 0 5 0 25 0 125 0 0625 0 03125 0 015625 0 0078125 Therefore Decimal value 1 0 2133 127 1 565 100 16 Amps FORMAT DESCRIPTION VALUE VALUETEXT F1 DATE TIME Milliseconds from 1 1 1996 at 00 00 00 000 F2 FLOAT 32 INTEL IEEE 32 bits Please refer...

Page 162: ...GEK 106426B MIB High Impedance Bus Differntial Relay A 23 APPENDIX A A 8 USED FORMATS A ...

Page 163: ...A 24 MIB High Impedance Bus Differntial Relay GEK 106426B A 8 USED FORMATS APPENDIXA A ...

Page 164: ... not necessary to cross the TX and RX signals in direct connection to the PC which is a DTE device TX 2 RX 3 signals However in case of a connection via modem it will be necessary to cross the wire in the relay by means of a null modem so that RX and TX signals are inverted as we will be connecting two DCE devices In addition we must check whether the relay is directly connected to the modem via i...

Page 165: ...isable any data compression hardware protocols flux control or error control Some modems allow a command e g Q0 which selects the direct asynchronous mode The local modem configuration that is the configuration of the modem that makes the call will be performed by ENERVISTA MII SETUP software by means of the provided initiation command In order to configure the remote modem connected to the relay ...

Page 166: ...ept V 25bis commands In this case the modem on the relay side could be either HAYES or V 25bis as it will not need to process any relay command The configuration of this kind of modem is performed by means of microswitches that set its operation This way the software window for entering the modem initiation commands will only be operative if a HAYES modem has been selected ...

Page 167: ... Normal mode error control disabled M0 RnConfigures the hardware flux control for data reception DR and transfer request RTS Modem ignores RTS R1 S15Record with bit representation Disable ARQ MNP for V 32 V 32bis S15 4 S32Record with bit representation Disable V 34 modulation S32 8 AnEnable disable the ARQ result codes ARQ result codes are disabled A0 DnControl the DTR operations About DTR control...

Page 168: ...ds for the RELAY modem Commands B1 E0 L1 M1 N1 Q0 T V0 W0 X4 Y0 C1 D3 G0 J0 K0 Q5 R1 S1 T4 X0 Y0 S Registers S00 001 S01 000 S02 043 S03 013 S04 010 S05 008 S06 002 S07 050 S08 002 S09 006 S10 014 S11 095 S12 050 S18 000 S25 005 S26 001 S36 007 S37 000 S38 020 S44 020 S46 138 S48 007 S95 000 S00 001 S01 000 S02 043 S03 013 S04 010 S05 008 S06 002 S07 050 S08 002 S09 006 S10 014 S11 095 S12 050 S18...

Page 169: ...igh channel OFF In PP transfers through low channel OFF 5 6 Baud ate selection for data transfer ON ON1200 OFF ON2400 ON OFFAutomatic OFF OFFAutomatic ON OFF 7 8 Automatic disconnection ON ONNo automatic disconnection OFF ONCircuit 105 ON OFFCircuit 109 OFF OFFCircuits 105 and 109 ON OFF NO DESCRIPTION VALUE 1 Synchronous format of protocol V25bis in option 108 2 ON Character oriented format BSC O...

Page 170: ...tocol selection ON HAYES Protocol OFF V 25bis Protocol OFF 7 8 Modem transmission level ON ON 6 dBm OFF ON 10 dBm ON OFF 6 dBm OFF OFF 15 dBm ON ON Nº DESCRIPTIÓN VALUE 1 112 ETD OFF ON Circuit 112 connected to ETD OFF Circuit 112 connected to ETD ON 2 112 ETD ON ON 108 circuit forced to CLOSED OFF 108 circuit follows ETD s 108 circuit ON 3 105 ETD ON ON Circuit 105 forced to CLOSED OFF Circuit 10...

Page 171: ...automatic call OFF OFFAutomatic call as per 108 2 ON OFF 7 Number of calls for automatic answer ON 1 call OFF 2 calls OFF 8 112 ETD OFF ON Asynchronous operation OFF Synchronous operation ON Nº DESCRIPCIÓN VALOR 1 2 Transmission timer selection ON ON114 OFF ON113 ON OFF114 5 OFF OFF113 ON ON 3 RTC Dialling system ON Multi frequency dialling OFF Loop opening pulse dialling OFF 4 Status of circuit 1...

Page 172: ...igh frequency signals which cannot be recognized digitally from entering the analog digital converter The maximum breaking frequency for this filter is determined by the Nyquis criterion which states that the maximum frequency that can be recognized when sampling a signal is less than half the sampling frequency In MIB the sampling is 16 times per cycle that is 800 Hz for a frequency set to 50 Hz ...

Page 173: ... by the MIGII relay MIB uses a complete cycle recursive DFT that is for each sample it calculates the phasor from the previous sample phasor and the difference between the current sample and the previous cycle sample This makes the relay require a complete cycle to obtain the correct measure value In the following figure we can see how the measure is established from a signal value that changes fr...

Page 174: ...at are not the fundamental and its harmonics as the measure varies for these frequencies As an example we can see in the next figure how a relay measure varies when it is set to 50 Hz and it is being applied 60 Hz Figure C 4 This case will never occur for the fundamental frequency and its harmonics where the filter gain is always 1 and 0 respectively ...

Page 175: ...n the machine speed During the start up process the machine will rotate at very low speed and therefore the obtained DFT measure will be affected as it works on values that are related to the fundamental frequency In order to guarantee the correct operation of the protection units during this transitory process of acceleration the MIB relay incorporates a metering capability for maximum values not...

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