4–264
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
MONITORING
CHAPTER 4: SETPOINTS
Figure 4-105: Trip Coil Circuit with Monitoring
Figure 4-106: Close Coil Circuit with Monitoring
FASTPATH:
To monitor the trip coil circuit integrity, use the relay terminals “FA_1 NO” and “FA_1 COM”
to connect the Trip coil, and provide a jumper between terminals “FA_1 COM” and “FA_1
OPT/V” voltage monitor).
Some applications require monitoring the Trip coil or/and Close coil continuously,
regardless of the breaker position (open or closed). This can be achieved by connecting a
suitable resistor (see the table
Value of Resistor “R”
) across the breaker auxiliary contact(s)
52a in the trip circuit (across 52b contact(s) for Close coil). With such connections, the
trickle current is maintained by the resistor. For these applications the setting for the
Bypass Breaker Status should be set to ENABLED.
V
DC +
DC -
Output Relay 1 (TRIP)
52a
contact
Trip
Coil
FA_1
COM
FA_1
NO
FA_1
OPT/V
External
Jumper
V
DC +
DC -
Output Relay 2 (CLOSE)
52b
contact
Close
Coil
FA_2
COM
FA_2
NO
FA_2
OPT/V
External
Jumper
Содержание 869
Страница 10: ...VIII 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ...
Страница 48: ...1 38 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION ...
Страница 78: ...2 30 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ELECTRICAL INSTALLATION CHAPTER 2 INSTALLATION ...
Страница 127: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL 3 49 ...
Страница 129: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL 3 51 ...
Страница 538: ...4 406 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 4 SETPOINTS ...
Страница 578: ...6 22 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FLEXELEMENTS CHAPTER 6 METERING ...
Страница 592: ...7 14 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL CLEAR RECORDS CHAPTER 7 RECORDS ...