Alstom MX3IPG2A Technical Manual
Alstom MX3IPG2A Technical Manual

Alstom MX3IPG2A Technical Manual

Multiple-function protection for generator (r-ucc-ucc)

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Summary of Contents for Alstom MX3IPG2A

  • Page 3: Table Of Contents

    CONTENTS 1. TECHNICAL DATA ................5 2.
  • Page 4 7. APPLICATION AND USE ............... . 23 8.
  • Page 5: Technical Data

    selection of dialogue language (Italian, English, French 1. TECHNICAL DATA and Spanish) This device belongs to the Modulex 3 line and digitally proc- self-monitoring with detailed indication of fault and alarm esses the currents and voltages injected into the rotor winding type through LED's and "normally energized"...
  • Page 6 ≤ 0.5% (minimum 1 mV) (selector Un: S23): for asymmetric values Auxiliary power supply ≤ 5% transient overreach: MX3IPG2A.11, .61 and .71 versions Uaux: 19 ÷ 100 Vcc Time errors Uaux: 19 ÷ 72 Vca ≤ 3% or 20 ms MX3IPG2A.12, .62 and .72 versions...
  • Page 7: General Characteristics

    Protection Class 2. GENERAL CHARACTERISTICS device: IP52 The device features a mechanical casing that is 4U in height, upon request when flush-mounted in a panel: IP66 and as wide as to allow up to 4 pieces to be accommodated terminal board with mounted cover: IP20 in a 19"...
  • Page 8: Selecting Rated Values

    2.1 Selecting rated values 3. OPERATION The selection of the rated current between 1 or 5 Ampères for 3.1 Underresistance protection (rotor ground) phase protection is made by acting on a jumper that is located The underresistance protection works by comparing the ratio by one of the following points: S20, S21, S22, S23, which can between voltage and current injected into the attachment X2/ be reached once the relay has been pulled out (see fig.
  • Page 9: Main And Spare Settings

    3.7 Main and spare settings 4. ADDITIONAL FUNCTIONS The device can store two groups of settings, named 'main' and 4.1 Diagnostics 'spare' settings, which can be programmed through the Diagnostic activities are envisaged which are automatically keyboard, a Personal Computer or a network. carried out upon powering on the device as well as from time The current settings are indicated on the display unit with the to time during the running, and which provide the following...
  • Page 10: Led Signalling Circuits

    4.7 Event logging 4.3 LED signalling circuits The signalling circuits are made of twelve LED's (see fig. 5). When a tripping event occurs, the following information is stored in the circulating memory: Four LED's are rigorously assigned to previously established signalling functions: - first operated threshold - (Uaux) green LED ON in the presence of input voltage and...
  • Page 11: Language

    (TM) 4.11 Language 4.14 Serial communication on LONWORKS The device can display information in four languages: Italian, The device, in the version including the special bus board, can English, French and Spanish. The language can be selected communicate with a central monitoring and control system at through the keyboard.
  • Page 12: Rs485 Serial Communication And Modbus Protocol

    [MX3IPG2A - whitout communication card (version software version [Sw Vers 2.00/01] MX3IPG2A .11 e .12); (TM) - provided with LonWorks communication card (version [PLANT IDENTIFIER] MX3IPG2A .61 e .62); plant identifier [GenPan - provided with Modbus communication card (version MX3IPG2A .71 e .72);...
  • Page 13: Local Interface

    It scrolls the menu to the left or selects 5. LOCAL INTERFACE the digit to be changed, if the settings change function is enabled. [ ] It resets the stored LED signals if the cause has been removed, or the par- tial counters, if you are in the "display counters"...
  • Page 14: Lcd Menu Structure

    - Twelve LED's, four of which are rigorously dedicated to 6. LCD MENU STRUCTURE general running functions. 6.1 MAIN READING MENU - A four-pin connector in compliance with FCC 68. By means of a special optoelectrical adapter, an optical The device has a main menu, leading to several sub-menus fibre cable and a RS232 optical converter, it allows the (tree structure).
  • Page 15: Change Date And Time

    By pressing you scroll the stored languages menu. For j) By pressing the "change time" function is enabled. The the purpose of our example, we must stop when the following steps are the same as those described in c) to i). message is displayed: The device does not accept time or date settings that do not [MENU:...
  • Page 16: Viewing Spare Settings

    second direct overvoltage threshold U->> b) By pressing the key you will enter the measurement U->> starting signalling delay tstart display menu, and by pressing the key the following sub- trip delay U->> menu will be scrolled across: additional timer t_X1 present resistance value in Ohm R(*)
  • Page 17: Display Output Relays

    the first line displays the event number, the day, the month and timer tX1 overtime t_X1 TRIP the year, whereas the second line lists the time, the minutes, timer tX2 overtime t_X2 TRIP the seconds and thousandths of a second concerning the timer tX3 overtime t_X3 TRIP event.
  • Page 18: Viewing Relay Data

    EEPROM failure b) By pressing the key you enter a sub-menu where the protection model and the software release are displayed: Internal RAM failure [MX3IPG2A External RAM failure [Soft Rel. 1.00] Analogue to Digital converter communication board failure or enabled but...
  • Page 19: Main Setting Change Menu

    whereas, as regards the VITAL FAULTS, you can only leave the diagnostic sub-menu, if the device allows you to do that, by setting of RELAY DATA entering the “settings change” menu. alphanumeric code permanent display back-lighting 2) Inhibited device (LCD) enabled [AUTOMATIC RETURN] The condition of “inhibited device”...
  • Page 20: Change Main Settings

    d) By pressing the key the new selection is confirmed, and By pressing the digit is changed (on reaching number 9 the the system goes back to the main settings change menu. The units will increase by 1) until the display unit shows: following message is displayed: [R<...
  • Page 21: Set Digital Inputs

    b) By pressing the key , you enter the output relay setting sub- c) By pressing the key the sub-menu is vertically menu, which contains all the parameters already listed in § scrolled, and by pressing the key , you can start changing 6.1.5 the selected parameter.
  • Page 22: Lcd Back-Lighting

    6.2.8 LCD back-lighting By pressing the two keys for two seconds a) Press the key until the display shows: anywhere in the test menu, the TEST function is disabled. The [AUTOMATIC RETURN] green LED (RUN) stops blinking, and the system goes back to the main display menu.
  • Page 23 7. APPLICATION AND USE 8. INSTALLATION - TRANSPORT The device is suitable to detect the ground rotor faults for 8.1 ESD Electrostatic charges synchronous machines. The relay uses electronic components that are highly sensitive It is also suitable to monitor direct voltage (Vaux) to electrostatic charges.
  • Page 24 X2/IPG2A trained staff. - ensure that the connection between the attachment X2/ IPG2A and the device MX3IPG2A is correct 9.2 Checking nameplate ratings - enter the main Settings Change mode (see 6.2 - 6.2.2) Inquire whether the equipment ratings are consistent with...
  • Page 25 To complete the start-up stage, before setting the system at work, ensure that: - the device settings match the design specifications. - the device bears the correct plant-identifying alphanu- meric code. - all the device memories (LED’s, maximum values, partial counters and wear index) are reset.
  • Page 26 SETTING RANGE OF Un: 30 - 300 V SETTING RANGE OF Un: 3 - 30 V Position of jumper Position of jumper TOP SIDE TOP SIDE RELAY RELAY FRONT FRONT fig. 4a fig. 4b SETTING RANGE OF Un: 0.3 - 3 V SETTING RANGE OF Un: 0.03 - 0.3 V Position of jumper Position of jumper...
  • Page 27 fig. 5 Warning: In the event of one sole polarity of the rotor winding (BRUSHLESS energizer) being available, the injectors (terminals 9B - 10B) shall be connected to one another.
  • Page 28 OVERALL DIMENSIONS The casing can even be mounted on a 19" rack panel, R4MX3 type, 4U in height DRILLING DIME TERMINALS fig. 6...
  • Page 29 OVERALL DIMENSIONS AND DRILLING DIME - ATTACHMENT X2 HOLES HOLES DRILLING WITH REAR CONNECTIONS DRILLING WITH REAR CONNECTIONS fig. 7...
  • Page 30 WARNING: The factory settings may prove not to suit the system. Therefore, the device must be configured anew upon installation tab. A - FACTORY SETTINGS RELAY CONTROL MATRIX LED'S 2 3 4 DESCRIZIONE FUNZIONE 1 2 3 4 5 6 del.
  • Page 31 WARNING: The factory settings may prove not to suit the system. Therefore, the device must be configured anew upon installation tab. B - TABLE OF SETTINGS CONTROL MATRIX DIGITAL INPUTS DESCRIPTION FUNCTION input enabled by normal de-energizing first underresistance threshold trip lock BLOC.
  • Page 32 WARNING: The factory settings may prove not to suit the system. Therefore, the device must be configured anew upon installation tab. C - FACTORY SETTINGS TABELLA DI REGOLAZIONE DESCRIPTION FUNCTION MAIN SPARE VALUE VALUE rated frequency 50 Hz direct voltage range IN_U- direct rated voltage 110 V...
  • Page 33 tab. D RELAY CONTROL MATRIX LED'S 2 3 4 DESCRIPTION FUNCTION 1 2 3 4 5 6 delayed start of first underresistance thr. R< START first underresistance threshold trip R< TRIP delayed start of sec. underres. threshold R<< START first underresistance threshold trip R<<...
  • Page 34 tab. E CONTROL MATRIX DIGITAL INPUTS DESCRIPTION FUNCTION input enabled by normal de-energizing first underres. threshold trip lock BLOC. R< sec. underres. threshold trip lock BLOC. R<< overcurrent threshold trip lock BLOC. I > overvoltage threshold trip lock BLOC. U >...
  • Page 35 tab. F TABLE OF SETTINGS DESCRIPTION FUNCTION MAIN SPARE VALUE VALUE rated frequency direct voltage range IN_U- direct rated voltage first underresistance threshold R< starting signalling delay R< tstart trip delay R< second underresistance threshold R<< starting signalling delay R<< tstart trip delay R<<...
  • Page 36 APPENDIX A - Network data exchange DESCRIPTION DIRECTION TIMING Identification commercial name relay--> centre plant identifier relay--> centre direct voltage range relay--> centre Setting data (main and spare) settings in use relay--> centre--> relay date of last change relay--> centre--> relay time of last change relay-->...
  • Page 37 DESCRIPTION DIRECTION TIMING Event log recorder date / time of event relay--> centre VP and AR first underresistance threshold start relay--> centre VP and AR first underresistance threshold trip relay--> centre VP and AR second underresistance threshold start relay--> centre VP and AR second underresistance threshold trip relay-->...
  • Page 38 DESCRIPTION DIRECTION TIMING Events date relay--> centre time relay--> centre tripped threshold relay--> centre resistance value relay--> centre rated voltage value relay--> centre Output relay X1 setting relay--> centre--> relay X2 setting relay--> centre--> relay X3 setting relay--> centre--> relay X4 setting relay-->...

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