GE Multilin 750/760 Feeder Management Relay 2-11
2 INTRODUCTION 2.2 SPECIFICATIONS
2
2.2.7 OUTPUTS
ANALOG OUTPUTS
Type: Active
Outputs: 8 Channels; specify one of the following
output ranges when ordering:
Output ranges: 0 to 1 mA, 0 to 5 mA, 0 to 10 mA,
4 to 20 mA
Maximum load: 12 kΩ for 0 to 1 mA output,
2.4 kΩ for 0 to 5 mA output,
1.2 kΩ for 0 to 10 mA output,
600 kΩ for 4 to 20 mA output
Isolation: Fully isolated
Accuracy: ±1% of full scale
Response time: 100% indication in less than 6 power
system cycles (100 ms at 60 Hz)
SOLID STATE TRIP
Make and carry: 15 A at 250 V DC for 500 ms
2.2.8 OUTPUT RELAYS
Relay contacts must be considered unsafe to
touch when the 750/760 is energized! If the output
relay contacts are required for low voltage acces-
sible applications, it is the customer’s responsibil-
ity to ensure proper insulation levels.
CONFIGURATION
Number: 8
Type: Trip (1) and Close (2) Relays: Form A
Auxiliary Relays 3 to 7: Form C
Self-Test Warning Relay 8: Form C
Contact material: silver alloy
Contact durability: 100 000 operations (at 1800 operations/
hour) at rated load
FORM A CONTACT RATINGS
Applicability: Trip and Close Relays (Relays 1 and 2)
Make: 30 A (per ANSI/IEEE C37.90)
Carry: 20 A continuous
Break (DC): 300 W resistive,
150 W inductive (L/R = 40 ms)
Break (AC): 5000 VA resistive
5000 VA inductive (PF = 0.4)
FORM C CONTACT RATINGS
Applicability: Auxiliary Relays 3 to 7
Self-Test Warning Relay (Relay 8)
Make: 30 A (per ANSI/IEEE C37.90)
Carry: 10 A continuous for 15 seconds
5 A continuous
Break (DC): 150 W resistive,
90 W inductive (L/R = 40 ms)
Break (AC): 1250 VA resistive
500 VA inductive (PF = 0.4)
2.2.9 CPU
COMMUNICATIONS
Baud rate: 300 to 19200 baud
Parity: programmable
Protocol: Modbus RTU or DNP 3.0 protocol
EEPROM
100000 program/erase cycles max.
CLOCK
Resolution: 1 ms
Accuracy with IRIG-B: ±1 ms
Accuracy without IRIG-B: ±1 minute/month
Backup battery life: 10 years continuous use
WARNING
Courtesy of NationalSwitchgear.com
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