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CHAPTER 4: PROGRAMMING
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] GROUND CURRENT
]
MESSAGE ▲
MESSAGE ▼
] TEMPERATURE
]
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239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL
Courtesy of NationalSwitchgear.com
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| BREAKER FAILURE
|
BREAKER FAILURE
FUNCTION: OFF
BREAKER FAILURE
PICKUP ≥ 5.0 x CT
BREAKER FAIL PICKUP
DELAY: 100 ms
BREAKER FAIL DROPOUT
DELAY: 100 ms
MESSAGE 4
GROUND TRIP:
TRIP
GROUND PRIMARY TRIP
MESSAGE 3
PICKUP ≥ 10.00 A
GROUND TRIP DELAY
ON RUN: 500 ms
GROUND TRIP DELAY
ON START: 500 ms
GROUND
ALARM: MOMENTARY
MESSAGE 4
| THERMISTOR
|
THERMISTOR FUNCTION:
MESSAGE 3
OFF
THERMISTOR HOT
RESISTANCE: 5.0 kΩ
MESSAGE ▲
THERMISTOR COLD
RESISTANCE: 0.3 kΩ
MESSAGE ▼
THERMISTOR NOT
CONNECTED ALARM: OFF
Range: OFF, ALARM, AUXILIARY,
ALARM & AUX
Range: 0.1 to 11.0
Step 0.1 x CT
Range: 10 to 60000, INST
Step: 10 ms
Range: 10 to 60000, INST
Step: 10 ms
Range: OFF, TRIP AUXILIARY,
TRIP & AUXILIARY
Range: 0.05 to 15 step 0.01A (GND PRI = 50:0.025);
3 to 100 step 1% (GND PRI = X:5; RESIDUAL)
Range: 10 to 60000, INST
Step: 10 ms
Range: 10 to 60000, INST
Step: 10 ms
Range: MOMENTARY,
LATCHED, OFF
GROUND PRIMARY
ALARM PICKUP ≥ 5.00 A
GROUND ALARM DELAY
ON RUN: 5.0 s
GROUND ALARM DELAY
ON START: 5.0 s
Range: OFF, ALARM, TRIP,
AUXILIARY, TRIP & AUXILIARY
Range: 0.1 to 30.0
Step: 0.1 kΩ
Range: 0.1 to 30.0
Step: 0.1 kΩ
Range: ON, OFF
Range: Same as GROUND
TRIP
Range: 0 to 60.0
Step: 0.1 s
Range: 0 to 60.0
Step: 0.1 s
4–29
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