AIR CIRCUIT BREAKERS - Electrical and Electronics Division

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TECHNICAL DATA
GENERATOR PROTECTION RELAYS
Multifunction Generator Protection Relays and
Percentage Biased Generator Differential Relay
✦ Display of various parameters, trip count & trip data on 8 digit alphanumeric display.
✦ Separate LEDs for various fault indication.
✦ �our user programmable output relays.
✦ Built in self supervision & self testing feature help maintenance
✦ Easy operation by 5 push buttons.
✦ RS 485 port for serial communication with “MSCOM” User friendly software.
Model IM3GV IM30G MD32G
Description Generator Protection Generator Protection Generator Differential
Device Code 50/51V, 49,46,27,59,81,40,32,37 50/51, 46, 64S, 40, 32 87, 50/51, 50LBB, 64S / 87N
Design Numeric Numeric Numeric
�unctions Available Voltage rest. O/C Highset Lowset O/C Generator Differential
Trip time char. NI, Def time Highset O/C Bias % with dual adjustable slope
Thermal Image Stator E/� Over Current
Lowset Negative sequence Negative Sequence Stator E/�
Highset Negative sequence
Under voltage, Over frequency
Loss of field, Reverse Power
Low forward power,
CB �ailure protection
Reverse Power CB �ailure protection
Other �eatures 1 A or 5 A site selectable 1 A or 5 A site selectable 1 A or 5 A site selectable
Display of Parameters Display of Parameters Display of Parameters
Built in Self supervision Built in Self supervision Wave form capture feature
RS485 Port, Blocking �unction RS485 Port, Blocking �unction Built in Self supervision, RS485 Port
Burden on CT 0.2 VA for 5A, 0.01 VA for 1A 0.2 VA for 5A, 0.01 VA for 1A 0.2 VA for 5A, 0.01 VA for 1A
Burden on PT 0.04 VA 0.04 VA Not applicable
Burden on Auxiliary supply 8.5 VA 8.5 VA 8.5 VA
Operating temp 10° to 60° C 10° to 60° C 10° to 60° C
Weight < 2kg < 2kg < 2kg
Output Contacts 4 C/O, S/R or H/R or Time del 4 C/O, S/R or H/R or Time del 4 C/O, S/R or H/R or Time del
1 C/O for self supervision 1 C/O for self supervision 1 C/O for self supervision
Construction Drawout Drawout Drawout
Dim W x H x D in mm 121 x 158 x 224 121 x 158 x 224 121 x 158 x 224
Panel Cutout 113 x 142 113 x 142 113 x 142