O Utputs - GE 745 Instruction Manual

CHAPTER 2: OVERVIEW
2.2.4 Outputs
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
INSULATION AGING
Hottest spot limit:
Pickup level: ............................... 50 to 300°C in steps of 1
Delay: ............................................ 0 to 60000 min. in steps of 1
Aging factor limit:
Pickup level:................................ 1.1 to 10.0 in steps of 0.1
Delay: ............................................ 0 to 60000 min. in steps of 1
Loss of life limit:
Pickup level:................................ 0 to 20000 × 10 h in steps of 1
ANALOG OUTPUTS
Number of outputs: .......................................7
Output range:...................................................0 to 1 mA, 0 to 5 mA, 0 to 10 mA, 0 to 20 mA, or 4 to 20
Maximum load:................................................10 kΩ at 0 to 1 mA
Isolation: .............................................................fully isolated
Accuracy: ...........................................................±1% of full scale
SOLID STATE OUTPUT
Maximum ratings:..........................................make and carry 15 A at 250 V DC for 500 ms
TRIP RELAYS 2 TO 5
Configuration:..................................................form-A (breaker trip rated)
Contact material:............................................silver alloy
Max. ratings: .....................................................300 V AC, 250 V DC, 15 A, 1500 VA
Make/carry:.......................................................20 A continuous; 40 A for 0.2 s (DC voltage); 80 A for 0.2 s
Voltage
DC resistive 30 V DC
125 V DC
250 V DC
DC inductive 30 V DC
L/R = 40 ms
125 V DC
250 V DC
AC resistive 120 V AC
240 V AC
AC inductive 120 V AC
PF = 0.4
240 V AC
AUXILIARY 6 TO 8 RELAYS, SELF-TEST RELAY 9
Configuration:..................................................form-C
Contact material:............................................silver alloy
Maximum ratings:..........................................300 V AC, 250 V DC, 15 A, 1500 VA
Make/carry:.......................................................10 A continuous; 30 A for 0.2 s
mA
600 Ω at 4 to 20 mA
(AC voltage)
Break Maximum load
10 A 300 W
0.8 A 300 W
0.4 A 300 W
5 A 150 W
0.3 A 150 W
0.2 A 150 W
20 A 5000 VA
20 A 5000 VA
8 A 5000 VA
7 A 5000 VA
SPECIFICATIONS
2–9