GE SR345 Instruction Manual page 254

M3 BREAKER MAINTENANCE
Output Relay 1 (TRIP)
V
7–6
Courtesy of NationalSwitchgear.com
Figure 3: Trip circuits with continuous monitoring
DC +
External
A2
jumper
B3
A3
By-pass
52a contact R
resistor
Trip
Coil
DC -
Output Relay 2 (TRIP)
V
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The following path is available using the keypad. For instructions on how to use the
keypad, please refer to Chapter 3 - Working with the Keypad.
PATH:
MAINTENANCE > M3 BKR MAINTENANCE > W1(W2) BKR TRIP
RLY1(2) COIL FUNCTION
Range: Disabled, Alarm, Latched Alarm
Default: Disabled
Selecting Alarm, or Latched Alarm, enables the RLY1(2) Coil Monitor monitoring function.
The "ALARM" and "MAINTENANCE" LEDs will light up upon detection of a RLY1(2) coil
circuitry problem. The "ALARM" LED will flash upon RLY1(2) Coil Monitor operating
condition, with the RLY1(2) Coil Monitor function selected as Alarm, and will self-reset,
when the condition clears. If Latched Alarm is selected, the "ALARM" LED will flash during
the RLY1(2) Coil Monitor condition, and will stay "ON" after the condition clears, until the
reset command is initiated. Any or all of output relays 3 to 6 can be selected to operate
when the RLY1(2) Coil Monitor function is selected as Alarm, or Latched Alarm.
DC +
External
B4
jumper
A4
B5
By-pass
52a contact R
resistor
Trip
Coil
DC -
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: MAINTENANCE
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