GE 845 Instruction Manual page 382

MONITORING
Output Relay 1 (TRIP)
FA_1
COM
FA_1
NO
V
FA_1
OPT/V
Output Relay 2 (CLOSE)
FA_2
COM
FA_2
NO
V
FA_2
OPT/V
DANGER:
4–254
Figure 4-102: Trip and Close Coil Circuit with Continuous Monitoring
DC +
External
Jumper
Bypass
R
52a
resistor
contact
Trip
Coil
DC -
DC +
External
Jumper
Bypass
R
52b
resistor
contact
Close
Coil
DC -
Table 4-35: Value of Resistor "R"
Power Supply (V DC)
24
48
110
125
220
Trip and Close Contacts must be considered unsafe to touch when the relay is
energized.
TRIP CIRCUIT MONITORING
Output Relay 1 (TRIP)
FA_1
COM
FA_1
NO
V
FA_1
OPT/V
Output Relay 2 (CLOSE)
FA_2
COM
FA_2
NO
V
FA_2
OPT/V
Resistance (Ohms)
1000
10000
25000
25000
50000
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS
DC +
External
Jumper
Bypass
R
52a
resistor
contact
Trip
Coil
52a
Bypass
R
contact
resistor
DC -
DC +
External
Jumper
Bypass
R
52b
resistor
contact
Close
Coil
52b
Bypass
R
contact
resistor
DC -
Power (Watts)
2
2
5
5
5