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2 INTRODUCTION
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)
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-
WARNING
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
COMMUNICATIONS
Baud rate:
300 to 19200 baud
Parity:
programmable
Protocol:
Modbus RTU or DNP 3.0 protocol
EEPROM
100000 program/erase cycles max.
GE Multilin
Courtesy of NationalSwitchgear.com
SOLID STATE TRIP
Make and carry:
FORM A CONTACT RATINGS
Applicability:
Make:
Carry:
Break (DC):
Break (AC):
FORM C CONTACT RATINGS
Applicability:
Make:
Carry:
Break (DC):
Break (AC):
CLOCK
Resolution:
Accuracy with IRIG-B:
Accuracy without IRIG-B: ±1 minute/month
Backup battery life:
750/760 Feeder Management Relay
2.2 SPECIFICATIONS
2.2.7 OUTPUTS
15 A at 250 V DC for 500 ms
2.2.8 OUTPUT RELAYS
Trip and Close Relays (Relays 1 and 2)
30 A (per ANSI/IEEE C37.90)
20 A continuous
300 W resistive,
150 W inductive (L/R = 40 ms)
5000 VA resistive
5000 VA inductive (PF = 0.4)
Auxiliary Relays 3 to 7
Self-Test Warning Relay (Relay 8)
30 A (per ANSI/IEEE C37.90)
10 A continuous for 15 seconds
5 A continuous
150 W resistive,
90 W inductive (L/R = 40 ms)
1250 VA resistive
500 VA inductive (PF = 0.4)
2.2.9 CPU
1 ms
±1 ms
10 years continuous use
2
2-11
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