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MICROENER IM3G-VX Operation Manual

Multifunction microprocessor protection relay
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MULTIFUNCTION MICROPROCESSOR
1
Mod.710
0
EMISSION
REV.
DESCRIPTION
IM3G-VX
PROTECTION RELAY
IM3G-VX
OPERATION MANUAL
MICROELETTRICA
SCIENTIFICA
MILANO
ITALY
GENERATOR
PROTECTION
RELAY TYPE
IM3G-V
Copyright 2010 Microener
31/05/00
10/03/98
DATE
TYPE
I>-I>>
I2>
T>
U,f
PROG/
Z<
B.I./
W
I.R.F.
B.F.
MODE SELECT
PROG.
ENTER/RESET
P. Brasca
P. Brasca
PREP.
Doc. N° MO-0068-ING
Rev.
1
Pag.
1 of
+
-
D. Ciminaghi
D. Ciminaghi
CONTR.
36
-
APPR.

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Summary of Contents for MICROENER IM3G-VX

  • Page 1 T> PROG/ Z< B.I./ I.R.F. B.F. MICROELETTRICA SCIENTIFICA MILANO ITALY MODE SELECT GENERATOR PROTECTION RELAY TYPE IM3G-V PROG. ENTER/RESET Copyright 2010 Microener Mod.710 31/05/00 P. Brasca D. Ciminaghi EMISSION 10/03/98 P. Brasca D. Ciminaghi REV. DESCRIPTION DATE PREP. CONTR. APPR.

  • Page 2: Table Of Contents

    = constant element F46______________________________________________________________ 28 21 Thermal Image Curves_________________________________________________________________ 29 22 Direction for pcb’s draw-out and plug-in__________________________________________________ 30 22.1 Draw-out____________________________________________________________________ 30 22.2 Plug-in______________________________________________________________________ 30 23 Overall dimensions____________________________________________________________________ 31 24 Keyboard operational diagram__________________________________________________________ 32 25 Setting’s form________________________________________________________________________ 33 Copyright 2010 - Microener...

  • Page 3: General Utilization And Commissioning Directions

    The electronic circuits reduced by M.S. are completely safe from electrostatic discharge (8 KV IEC 255.22.2) when housed in their case; withdrawing the modules without proper cautions expose them to the risk of damage. Copyright 2010 - Microener...

  • Page 4: Maintenance

    The relay can be fitted with two different types of power supply module: 24V(-20%) / 110V(+15%) a.c. 80V(-20%) / 220V(+15%) a.c. a) -   b) - 24V(-20%) / 125V(+20%) d.c. 90V(-20%) / 250V(+20%) d.c. Before energizing the unit check that supply voltage is within the allowed limits. Copyright 2010 - Microener...

  • Page 5: Measuring Input

    (see figure) Angles are measured anticlockwise from 0° to 360° with accuracy 2°. Displacement is not measured if current or voltage are null. Copyright 2010 - Microener...

  • Page 6: Algorithms Of The Different Functions

    - Time to warm-up from Tp to trip temperature (110%Tn) in function of the current overload   (Tx/Tn) (Tp/Tn) (I/[Ib]) (Ip/[Ib])   [Tc]ln [Tc]ln   (Tx/Tn) (Tb/Tn) (I/[Ib]) (Ib/[Ib]) (see curves TU0325 §20) Cooling is computed with the same time constant (Tc) as heating. Copyright 2010 - Microener...
  • Page 7 - Pick-up (operation) level : I>> = (1-12)Ib, step 0.1Ib Setting I>> = Dis blocks function’s operation - Drop-out ratio 0.95 - Minimum operation time 30ms - Independent trip time delay : t = tI>> = (0.05-3)s, step 0.01s Copyright 2010 - Microener...
  • Page 8 = (10-1800)s, step 1s     [tcs]         Cooling time = [tcs] when      Cooling only takes places if (see curves TU0312 §19) Copyright 2010 - Microener...
  • Page 9  = 270°. - Operation zone is that included in the circle having (see figure) : Center on the axle displaced by  K2  from the axles’ origin and at distance Diameter = K1 Copyright 2010 - Microener...
  • Page 10 - Voltage balance (Un +/- 1u) : operates when any phase voltage differs from the rated value more then [1u]%         (100 [1u])% (100 [1u])% [Uns] [Uns] - Operation blocked : (Un = Dis) Copyright 2010 - Microener...
  • Page 11 It operates same as the first element ; the programmable parameters are : - Pick-up level : 2f = (0.05-9.99)Hz, step 0.01Hz - Independent trip time delay : t2f = (0.1-60)s, step 0.1s - Operation mode : (Fn +/- 2f) Copyright 2010 - Microener...

  • Page 12: Controls And Measurements

    If not tripped, this button altered. restores the default display. Copyright 2010 - Microener...

  • Page 13: Signalization

    - From ON to OFF, by "ENTER/RESET" push button via serial bus command only if the tripping cause has disappeared. In case of auxiliary power supply failure the status of the leds is recorded and reproduced when power supply is restored. Copyright 2010 - Microener...

  • Page 14: Output Relays

    This second unit REX-8 is configured (by internal Dip-Switch) to operate the eight relays two by two in parallel (only four user programmable outputs with double number of available contacts) Any of the function featured by the IM3G-VX can be programmed to control up to four out of the sixteen user programmable output relays...

  • Page 15: Serial Communication

    - The relays R5, R DIAG, are not user programmable; they are normally energized and get deenergized on : - internal fault of IM3G-VX - Internal fault of REX-8 R5 - IM3G-VX power supply failure - REX-8 power supply failure R DIAG - during the programming - Interruption/fault on the serial...

  • Page 16: Digital Inputs

     4ms). If any internal fault is detected, the display shows a fault message, the Led "PROG/IRF" illuminates and the relay R5 is deenergized. Complete test activated by the keyboard or via the communication bus either with or without tripping  of the output relays. Copyright 2010 - Microener...

  • Page 17: Keyboard And Display Operation

    - Yellow key ENTER/RESET : It allows the validation of the programmed settings - the actuation of test programs - the forcing of the default display indication - the reset of signal Leds.  e) - Indirect key : Enables access to the programming. Copyright 2010 - Microener...

  • Page 18: Reading Of Measurements And Recorded Parameters

    As above, phase B As above, phase C ICxx.xIn Negative sequence current as % of generator’s rated current I2xxxx%Ib As above reverse current . (Ir=[(Icos)/Ib] 100) Irxxxx%Ib Active power as % of generator’s rated power Wxxxx%Wb Copyright 2010 - Microener...

  • Page 19: Trip Num

    Enter the mode "SET DISP", select the menu "SETTINGS" or "FRELAY", scroll information available in the menu by keys "+" or "-". SETTING= values of relay's operation parameters as programmed; FRELAY= output relay associated to the different functions as programmed. Copyright 2010 - Microener...

  • Page 20: Programming

    0.05 - 0.5 - Dis 0.01 (p.u. of Ib) Time multiplier of the I t time-current curve 5 - 80 tcs 10s Cooling time from trip level to the state corresponding to I2=1Is 10 - 1800 Copyright 2010 - Microener...
  • Page 21 0.05s 0.05 - 0.5 0.01 activation of the output relay associated to the Breaker Failure function The setting Dis indicates that the function is disactivated. Copyright 2010 - Microener...

  • Page 22: Programming The Configuration Of Output Relay

    The blocking input (3) operate on function (Z<) or (Ir>) or (Z<+Ir>) 3= --Ir The blocking input (4) (terminals 1-14) blocks the operation of one or more of the 4=1--2-- function 1U, 2U, 1f, 2f in any possible combination. Copyright 2010 - Microener...

  • Page 23: Mode "Testprog" Subprogram "W/O Trip

    If the error message displayed is “E2P Err”, try to program any parameter and then run “W/OTRIP”.  If message disappear please check all the parameters.  If message remains send the relay to Microelettrica Scientifica (or its local dealer) for repair.  Copyright 2010 - Microener...

  • Page 24: Electrical Characteristics

    RH 93% Without Condensing a 40°C Microelettrica Scientifica S.p.A. - 20089 Rozzano (MI) - Italy - Via Alberelle, 56/68 Tel. (##39) 02 575731 - Fax (##39) 02 57510940 - Telex 351265 MIELIT I http://www.microelettrica.com ute@microelettrica.com e-mail : Copyright 2010 - Microener...
  • Page 25 Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 25 of 36 The performances and the characteristics reported in this manual are not binding and can modified at any moment without notice Copyright 2010 - Microener...

  • Page 26: Connection Diagram (Standard Output)

    Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 26 of 36 16. CONNECTION DIAGRAM (SCE1564 Rev.1 Standard Output) 16.1 - CONNECTION DIAGRAM (SCE1565 Rev.1 Double Output) Copyright 2010 - Microener...

  • Page 27: Wiring The Serial Communication Bus

    Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 27 of 36 17. WIRING THE SERIAL COMMUNICATION BUS (SCE1309 Rev.0) Copyright 2010 - Microener...

  • Page 28: Change Phase Rated Input 1A Or 5A

    Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 28 of 36 18. CHANGE PHASE CURRENT RATED INPUT 1 OR 5A Jumper Rated input Current Phase A Rated input Current Phase B Rated input Current Phase C Copyright 2010 - Microener...

  • Page 29: Time Current Curves F51

    Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 29 of 36 19. TIME CURRENT CURVES F51 (TU0311 Rev.0) Copyright 2010 - Microener...

  • Page 30: T = Constant Element F46

    Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 30 of 36 20. I t = CONSTANT ELEMENT F46 (TU0312 Rev.0) Copyright 2010 - Microener...

  • Page 31: Thermal Image Curves

    Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 31 of 36 21. THERMAL IMAGE CURVES (TU0325 Rev.0) Copyright 2010 - Microener...

  • Page 32: Direction For Pcb's Draw-Out And Plug-In

    Slide-in the card on the rails provided inside the enclosure. Plug-in the card completely and by pressing the handle to the closed position. Rotate anticlockwise the screws  and  with the mark in the vertical position (locked). Copyright 2010 - Microener...

  • Page 33: Overall Dimensions

    Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 33 of 36 23. OVERALL DIMENSIONS PANEL CUT-OUT 113x142 (LxH) View of Rear Terminal Connection Copyright 2010 - Microener...

  • Page 34: Keyboard Operational Diagram

    Doc. N° MO-0068-ING IM3G-VX Rev. Pag. 34 of 36 24. KEYBOARD OPERATIONAL DIAGRAM Copyright 2010 - Microener...
  • Page 35 Trip time delay of the second frequency element Thermal time constant of the alternator Prealarm level of the thermal image Ta/n Ta/n 0.05 Pick-up level of the active underpower element W< W< Trip time delay tW< tW< Breaker Failure function 0.05 Copyright 2010 - Microener...
  • Page 36 Ta/n Breaker Failure Relay reset mode A= Automatic , M = Manual tFRes: tFRes: The blocking input (2) I>> The operation of the blocking input (2) --Ir The blocking input (3) The blocking input (4) 1--2-- Copyright 2010 - Microener...

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