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MICROPROCESSOR OVERCURRENT
AND EARTH FAULT PROTECTION RELAY
Copyright 2010 - Microener
TRIPLE SINGLE PHASE
IM30-BY
OPERATION MANUAL
MICROELETTRICA
SCIENTIFICA
MILANO
ITALY
MULTIFUNCTION
OVERCURRENT +
EARTH FAULT
RELAY TYPE
IM30-BY
IM30-BY
TYPE
3.00
O>
I>>
O>>
I>
PROG/
BLOCK
BR.
FUNC.
I.R.F
INPUT
FAIL.
DISAB.
MODE SELECT
PROG.
ENTER/RESET
Firmware:
Doc. N° MO-0024-ING
Rev.
1
Date
08.03.2004
+
-
Pag
3.0X
of
1
31
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Related Manuals for MICROENER IM30-BY
Summary of Contents for MICROENER IM30-BY
- Page 1 AND EARTH FAULT PROTECTION RELAY TYPE IM30-BY 3.00 OPERATION MANUAL O> I>> O>> I> PROG/ BLOCK FUNC. I.R.F INPUT FAIL. DISAB. MICROELETTRICA SCIENTIFICA MILANO ITALY MODE SELECT MULTIFUNCTION OVERCURRENT + EARTH FAULT RELAY TYPE PROG. IM30-BY ENTER/RESET Copyright 2010 - Microener Firmware: 3.0X...
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Page 2: Table Of Contents
20 Time current curves IEC___________________________________________________________________________ 26 21 Time current curves IEEE__________________________________________________________________________ 27 22 Direction for pcb’s draw-out and plug-in_____________________________________________________________ 28 22.1 Draw-out______________________________________________________________________________ 28 22.2 Plug-in_______________________________________________________________________________ 28 23 Overall dimensions_______________________________________________________________________________ 29 24 Keyboard operational diagram______________________________________________________________________ 30 25 Setting’s form____________________________________________________________________________________ 31 Copyright 2010 - Microener Firmware: 3.0X... -
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 Firmware: 3.0X... -
Page 4: Maintenance
80V(-20%) / 220V(+15%) c.a. a) - b) - 24V(-20%) / 125V(+20%) c.c. 90V(-20%) / 250V(+20%) c.c. Before energising the unit check that supply voltage is within the allowed limits. Copyright 2010 - Microener Firmware: 3.0X... -
Page 5: Operation And Algorithms
Phase CTs 1500/5A and Core Balance CT 100/1A Load In = 1500A and On = 100A Configure CT input card with jumpers J1, J2, J3 in the 5A position. Connect Earth Fault input to terminals 32-33 Copyright 2010 - Microener Firmware: 3.0X... -
Page 6: 1F50/51 - First Overcurrent Element
Serial Port (see MSCom operation). Reset of the output relay takes place as explained in § 5. Any time the time delayed element trips, the Event Recording “ Last Trip “ is activated (See § 10.3) and the trip counter “ TRIP NUM “ is increased (See § 10.4). Copyright 2010 - Microener Firmware: 3.0X... -
Page 7: 2F50/51 - Second Overcurrent Element
- Instantaneous operation level : 3I = (0.5-40)In adjustable in steps 0.1In. It trips instantaneously as soon as the current exceeds the set level [3I], operates programmed output relays and the led ” I>> “ - Reset takes place at 0.95 [3I]. Copyright 2010 - Microener Firmware: 3.0X... -
Page 8: 1F50N/51N - First Earth Fault Element
Serial Port (see MSCom operation). Reset of the output relay takes place as explained in § 5. Any time the time delayed element trips, the Event Recording “ Last Trip “ is activated (See § 10.3) and the trip counter “ TRIP NUM “ is increased (See § 10.4). Copyright 2010 - Microener Firmware: 3.0X... -
Page 9: 2F50N/51N - Second Earth Fault Element
“tBF” is started; if at the and of the delay “tBF” the current flowing in any of the phase elements has not drop down to zero, the Led “BR. FAIL.” is lit-on and the Relay “R1” is energized if so programmed (R1 = BF see § 12.2). Copyright 2010 - Microener Firmware: 3.0X... -
Page 10: Algorithm Of The Time Current Curves
For the IEC curves, being B = 0, the Time/Current equation (1), becomes: Where Kt = (10 -1)Ts is the time multiplier Copyright 2010 - Microener Firmware: 3.0X... -
Page 11: Clock And Calendar
During power on, time tolerance depends on the on board crystal (+/-50ppm typ, +/-100ppm max. over full temperature range). During power off, time tolerance depends on the RTC’s oscillator (+65 /–270 ppm max over full temperature range). Copyright 2010 - Microener Firmware: 3.0X... -
Page 12: Controls And Measurements
If not tripped, this button altered. restores the default display. Copyright 2010 - Microener Firmware: 3.0X... -
Page 13: Signalization
Leds e,f,h From ON to OFF, automatically when the lit-on cause disappears. In case of auxiliary power supply failure the status of the leds is recorded and reproduced when power supply is restored. Copyright 2010 - Microener Firmware: 3.0X... -
Page 14: Output Relays
Each relay is identified by its programmable address code (NodeAd) and can be called from the P.C. A dedicated communication software (MSCOM) for Windows 95/98/NT4 SP3 (or later) is available. Please refer to the MSCOM instruction manual for more information Microelettrica Scientifica. Copyright 2010 - Microener Firmware: 3.0X... -
Page 15: 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 Firmware: 3.0X... -
Page 16: 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 Firmware: 3.0X... -
Page 17: Reading Of Measurements And Recorded Parameters
On As above, earth fault current. xxxx Max. current of phase A during the first 100ms. As above, phase B. xxxx As above, phase C. xxxx On As above, earth fault current. xxxx Copyright 2010 - Microener Firmware: 3.0X... -
Page 18: Lasttrip (Last Trip)
Enter the mode "SET DISP", select the menu "CONFIG A" or “CONFIG B” or "F RELAY", scroll information available in the menu by keys "+" or "-". CONFIG = values of relay's operation parameters as programmed RELAY = output relays associated to the different functions as programmed. Copyright 2010 - Microener Firmware: 3.0X... -
Page 19: Programming
= IEC Extremely Inverse Curve type C F(1I) (MI) = IEEE Moderate Inverse Curve (SI) = IEEE Short Inverse Curve (VI) = IEEE Very Inverse Curve = IEEE Inverse Curve (EI) = IEEE Extremely Inverse Curve Copyright 2010 - Microener Firmware: 3.0X... - Page 20 Expected time interval between sync. pulses. 15-30 Tsyn 5 - 60 - Dis Identification number for connection on serial communication NodAd 1 1 - 250 The setting Dis indicates that the function is disactivated. Copyright 2010 - Microener Firmware: 3.0X...
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Page 21: Programming The Configuration Of Output Relay
2xtBF (tB2 = 2xtBF). 2tBF As above, for the earth fault elements (tB3 = Dis) or (tB3 = 2tBF). Copyright 2010 - Microener Firmware: 3.0X... -
Page 22: Manual And Automatic Test Operation
This is extremely important as discharges eventually tacking place in other parts or components of the board can severely damage the relays or cause damages, not immediately evident to the electronic components. Copyright 2010 - Microener Firmware: 3.0X... -
Page 23: Electrical Characteristics
Microelettrica Scientifica S.p.A. - 20089 Rozzano (MI) - Italy - Via Alberelle, 56/68 Tel. (##39) 02 575731 - Fax (##39) 02 57510940 http://www.microelettrica.com ute@microelettrica.com e-mail : The performances and the characteristics reported in this manual are not binding and can modified at any moment without notice Copyright 2010 - Microener Firmware: 3.0X... -
Page 24: Connection Diagram (Standard Output)
Doc. N° MO-0024-ING Rev. IM30-BY Date 08.03.2004 17. CONNECTION DIAGRAM (SCE1497 Rev.1 Standard Output) 17.1 - CONNECTION DIAGRAM (SCE1447 Rev.1 Double Output) Copyright 2010 - Microener Firmware: 3.0X... -
Page 25: Wiring The Serial Communication Bus
18. WIRING THE SERIAL COMMUNICATION BUS (SCE1309 Rev.0) 19. CHANGE PHASE CURRENT RATED INPUT 1 OR 5A Connector Jumper Rated Input Phase A Current Input Rated Current Phase B Rated Input Current Phase C Copyright 2010 - Microener Firmware: 3.0X... -
Page 26: Time Current Curves Iec
Doc. N° MO-0024-ING Rev. IM30-BY Date 08.03.2004 20. TIME CURRENT CURVES IEC (TU0388 Rev.0 1/2) Copyright 2010 - Microener Firmware: 3.0X... -
Page 27: Time Current Curves Ieee
Doc. N° MO-0024-ING Rev. IM30-BY Date 08.03.2004 21. TIME CURRENT CURVES IEEE (TU0388 Rev.0 2/2) Copyright 2010 - Microener Firmware: 3.0X... -
Page 28: 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 Firmware: 3.0X... -
Page 29: Overall Dimensions
Doc. N° MO-0024-ING Rev. IM30-BY Date 08.03.2004 23. MOUNTING PANEL CUT-OUT 113x142 (LxH) View of Rear Terminal Connection Copyright 2010 - Microener Firmware: 3.0X... -
Page 30: Keyboard Operational Diagram
Doc. N° MO-0024-ING Rev. IM30-BY Date 08.03.2004 24. KEYBOARD OPERATIONAL DIAGRAM Copyright 2010 - Microener Firmware: 3.0X... -
Page 31: Setting's Form
The input (B3) for blocking the operation of the time delayed elements relevant to earth faults The blocking of the phase fault elements 2tBF 2tBF As above, for the earth fault elements Commissioning Engineer : Date : Customer Witness : Date : Copyright 2010 - Microener Firmware: 3.0X...
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