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IM30-GLF

Doc. N° MO-0062-ING

Rev.

3

Date

14.02.2005

Copyright 2010 - Microener

Pag

1

of

31

MULTIFUNCTION MICROPROCESSOR

PROTECTION RELAY

TYPE

IM30-GLF

OPERATION MANUAL

GENERATOR

PROTECTION

RELAY TYPE

IM30-G

ENTER/RESET

MODE

SELECT

+

-

PROG.

I

2

>

Ir

PROGR/

I.R.F.

MICROELETTRICA SCIENTIFICA

MILANO ITALY

I>->>

O>

Z<

BR.

FAIL.

B.I/

F.D.

1
2
3
...
»

Summary of Contents for IM30-GLF

Page 1: ...ight 2010 Microener Pag 1 of 31 MULTIFUNCTION MICROPROCESSOR PROTECTION RELAY TYPE IM30 GLF OPERATION MANUAL GENERATOR PROTECTION RELAY TYPE IM30 G ENTER RESET MODE SELECT PROG I2 Ir PROGR I R F MICROELETTRICA SCIENTIFICA MILANO ITALY I O Z BR FAIL B I F D ...

Page 2: ... 12 4 SIGNALIZATIONS _________________________________________________________________________________ 13 5 OUTPUT RELAYS _________________________________________________________________________________ 14 6 SERIAL COMMUNICATION _________________________________________________________________________ 14 7 DIGITAL INPUTS ____________________________________________________________________________...

Page 3: ... Loading must be compatible with their declared performance 1 6 Protection Earthing When earthing is required carefully check its effectiveness 1 7 Setting and Calibration Carefully check the proper setting of the different functions according to the configuration of the protected system the safety regulations and the co ordination with other equipment 1 8 Safety Protection Carefully check that al...

Page 4: ...ication of the above warnings and instruction relieves the Manufacturer of any liability 2 GENERAL Input currents are supplied to 4 current transformers three measuring phase current one measuring the earth fault zero sequence current Phase current input can be 1 or 5A For zero sequence current taps for 1A and 5A input are provided on relay s terminal board Input phase to phase voltage is supplied...

Page 5: ...hereas the frequency is detected on each full cycle It is then clear that the computing time of the RMS values is inversely proportional to the frequency Any trip time delay is started as soon as at least one RMS value above the set level has been detected As already remarked the dependent time delay are affected by the frequency whereas the independent time delays are not Make electric connection...

Page 6: ...ugh 13In 1 0 02 M 0 002 In from 0 to 1 2 In 2 0 02 M 0 02 In from 1 2 to 12 In For ground current the measuring range of the A D converter runs from 0 to 2On The actual absolute error on each measurement M can be 0 0 02 M 0 004 On 2 2 2 Phase to Phase voltage Phase to phase voltage UAB is supplied to one Potential transformers rated 220V Relay s rated phase to phase input voltage Uns can be adjust...

Page 7: ...1 2 5 Ib step 0 01Ib Drop out ratio 0 95 Minimum operation time of instantaneous output 30ms Trip time delay in the definite time operation mode F I D t tI 0 05 30 s step 0 01s Trip time delay in the inverse time operation mode F I SI 1 I I tI 0 033 t 0 02 tI trip time delay at I I 5 see curves TU0311 Attachment B F2 50 51 High set overcurrent Pick up operation level Setting I Dis blocks function ...

Page 8: ... if I2 1Is Cooling time from trip level to the status corresponding to the operation at I2 1Is tc 10 1800 s step 1s Cooling time t I I Ks tc t 2 b 2 l tl tc when Ks t I I 2 b 2 Cooling only takes places if 1Is I I b 2 see curves TU0312 Attachment B F2 46 Alarm Alarm level Setting 2Is Dis blocks function s operation 2Is 0 03 1 Ib step 0 01Ib Independent trip time delay t2Is 1 100 s step 1s 2 3 5 F3...

Page 9: ...e Resistive 120 L R 240 120 Forward Inductive Reverse Resistive 90 L 270 90 Forward Inductive 60 L R 300 60 Forward Inductive Forward Resistive 30 L R 330 30 Forward Inductive Forward Resistive The direction is that of the axle where the center of the circle is located N B By definition the relation between current displacement and impedance displacement is 360 Angles are counted anticlockwise fro...

Page 10: ... value recommended value for testing K2 50 Circle diameter to any value recommended value for testing K1 200 Time delay tz to any value recommended value for testing tz 0 2s Using a single phase apparatus Voltage input at rated value to terminals 32 33 Current input to phase A terminals 25 26 Phase displacement of input current on input voltage 90 current leading voltage See attached table The tri...

Page 11: ...e output relays but some of then can be grouped to operate the same relay according to the protection system For generator protection the different functions normally operate the trippings shown in the tabel here below PROTEC DEVICE OPERATED OUTPUT RELAY CONTROLLED FUNCTION EMERG MACHINE FIELD SIGNALS OR TRIP C B C B OTHER R1 R2 R3 R4 32 Ir X X X X 40 Zc X X 46 1 1Is X X X 46 2 2Is X X 50 1 I X X ...

Page 12: ...ts Display Setting Display Programming and Test modes When in Program mode this button stores the newly selected value If not in Program mode and the relay has tripped this button resets the relay and all output contacts If not tripped this button restores the default display The and buttons are used to select the actual measurement or display desired when in Measurements Display or Settings Displ...

Page 13: ... Relay Fault f Red LED Z same as above related to Z tz g Red LED BR FAIL Lit on when the BREAKER FAILURE function is activated h Yellow LED B I F D Lit on when the operation of one or more of the relay functions has been disactivated in the programming Flashing when a blocking signal is present at the relevant input terminals The reset of the leds takes place as follows Leds a b c d e From flashin...

Page 14: ...structure does not allow to associate the same relay at the same time to instantaneous and delayed elements Therefore any relay already associated to any time delayed element cannot be associated to any instantaneous element and viceversa b The relay R5 normally energised is not programmable and it is deenergized on internal fault power supply failure during the programming 6 SERIAL COMMUNICATION ...

Page 15: ...he expiry of the set trip time delay of the function involved plus additional time 2tBF t2 2tBF By proper interconnection of the blocking inputs and blocking outputs of different relays it is possible to configurate very efficient arrangements of logic fault discrimination as well as to feature a safe and quick breaker back up protection 8 TEST Besides the normal WATCHDOG and POWERFAIL functions a...

Page 16: ... recorded in the memory SET DISP Reading of the settings and of the configuration of the output relays as programmed PROG Access to the programming of the settings and of relay configuration TEST PROG Access to the manual test routines b Green key SELECT When operated it selects one of the menus available in the actual operation MODE c Red key AND When operated they allow to scroll the different i...

Page 17: ...xxx Symmetric phase displacement I E N B If no key is operated within 60 sec the display is automatically switched to the default indication IAxxxxxA 10 2 MAX VAL Maximum demand values recorded starting from 100ms after closing of main Circuit Breaker plus highest inrush values recorded within the first 100ms from Breaker closing updated any time the breaker closes Display Description IA xxxx In M...

Page 18: ...is non volatile and can be cancelled only with a secret procedure Display Description I xxxx Trip number of Low set overcurrent time delayed element tI I xxxx Trip number of High set overcurrent time delayed element tI Io xxxx Trip number of earth fault time delayed element tO 1Is xxxx Trip number of Low set unbalance time delayed element 2Is xxxx Trip number of High set unbalance time delayed ele...

Page 19: ... of the phase C Ts 1 9999 1 A On 500 Ap Rated primary current of the C Ts or of the tore C T supplying the zero sequence current 1 9999 1 A Uns 100 V Rated secondary voltage of V Ts phase to phase 100 125 1 V Ib 0 5 In Generator s rated current as p u of C Ts rated current 0 5 1 1 0 1 In F I D Operation characteristic of the low set overcurrent element D Independent definite time SI Dependent norm...

Page 20: ...us from the dot to the relay number or viceversa Display Description I 3 Instantaneous element of low set overcurrent only one or more whatever combination operates relays R1 R2 R3 R4 tI 1 As above time delayed element operates relay R1 R2 R3 R4 I 3 Instantaneous element of high set overcurrent operates relay R1 R2 R3 R4 tI 1 As above time delayed element operates relay R1 R2 R3 R4 O 3 Instantaneo...

Page 21: ...ench test environment or after all dangerous output connections are removed 14 MAINTENANCE No maintenance is required Periodically a functional check out can be made with the test procedures described under MANUAL TEST chapter In case of malfunctioning please contact Microelettrica Scientifica Service or the local Authorised Dealer mentioning the relay s Serial No reported in the label on relays e...

Page 22: ... IEC61000 4 4 level 3 2kV 5kHz HF disturbance test with damped oscillatory wave 1MHz burst test IEC60255 22 1 class 3 400pps 2 5kV m c 1kV d m Oscillatory waves Ring waves IEC61000 4 12 level 4 4kV c m 2kV d m Surge immunity test IEC61000 4 5 level 4 2kV c m 1kV d m Voltage interruptions IEC60255 4 11 Resistance to vibration and shocks IEC60255 21 1 IEC60255 21 2 10 500Hz 1g CHARACTERISTICS Accura...

Page 23: ...M30 GLF Doc N MO 0062 ING Rev 3 Date 14 02 2005 Copyright 2010 Microener Firmware 2 0X Pag 23 of 31 17 CONNECTION DIAGRAM SCE1395 Rev 5 Standard Output 17 1 CONNECTION DIAGRAM SCE1468 Rev 2 Double Output ...

Page 24: ...IM30 GLF Doc N MO 0062 ING Rev 3 Date 14 02 2005 Copyright 2010 Microener Firmware 2 0X Pag 24 of 31 18 WIRING THE SERIAL COMMUNICATION BUS SCE1309 Rev 0 ...

Page 25: ...IM30 GLF Doc N MO 0062 ING Rev 3 Date 14 02 2005 Copyright 2010 Microener Firmware 2 0X Pag 25 of 31 19 TIME CURRENT CURVES F51 IM30 G TU0311 Rev 0 ...

Page 26: ...IM30 GLF Doc N MO 0062 ING Rev 3 Date 14 02 2005 Copyright 2010 Microener Firmware 2 0X Pag 26 of 31 20 I2 t constant element F46 IM30 G TU0312 Rev 0 ...

Page 27: ...izontal position of the screws driver mark Draw out the PCB by pulling on the handle 21 2 Plug in Rotate clockwise the screws and in the horizontal position of the screws driver mark 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 loc...

Page 28: ...IM30 GLF Doc N MO 0062 ING Rev 3 Date 14 02 2005 Copyright 2010 Microener Firmware 2 0X Pag 28 of 31 22 MOUNTING PANEL CUT OUT 113x142 LxH View of Rear Terminal Connection ...

Page 29: ...IM30 GLF Doc N MO 0062 ING Rev 3 Date 14 02 2005 Copyright 2010 Microener Firmware 2 0X Pag 29 of 31 23 KEYBOARD OPERATIONAL DIAGRAM ...

Page 30: ...overcurrent element 0 05 30 s 0 05 I Trip level of high set overcurrent element 1 12 Dis Ib 1 tI Trip time delay of the high set overcurrent element 0 05 3 s 0 05 O Trip level of earth fault element 0 02 0 4 Dis On 0 02 tO Trip time delay of low set earth fault element 0 05 30 s 0 05 1Is Generator s max continuos negative sequence current rating 0 05 0 5 Dis Ib 0 05 Ks Time multiplier of the I 2 t...

Page 31: ...e delayed 1Is 2Is 2 As above second unbalance element 2Is Ir 1 Reverse power time delayed element Ir Z 1 Underimpedance time delayed element Z tBF 4 Breaker Failure function operates tBF tFRes A The reset after tripping A automatically M manually tFRes 2 Ih The input 2 for blocking the time delayed elements relevant to phase and ground 2 t2 OFF The operation of the blocking input 2 can be programm...

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