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A4 TARGET MESSAGES
NOTE:
NOTE
4–22
Phase Short Circuit Settings:
•
SHORT CIRCUIT FUNCTION = Latched Alarm
•
SHORT CIRCUIT PICKUP = 1.00 x CT
•
SHORT CIRCUIT DELAY = 0.20 s
When current greater than the Short Circuit pickup level is applied, the 339 display shows
the following target message:
A4 TARGET MESSAGES
Ph Short Circuit Alarm
STATE: PKP
After the 200 ms time delay expires, the display shows the following message only:
A4 TARGET MESSAGES
Ph Short Circuit Alarm
STATE: OP
Example 3:
Phase Short Circuit Settings:
•
SHORT CIRCUIT FUNCTION = Alarm
•
SHORT CIRCUIT PICKUP = 1.00 x CT
•
SHORT CIRCUIT DELAY = 0.20 s
When current greater than the Short Circuit pickup level is applied, the 339 display shows
the following target message:
A4 TARGET MESSAGES
Ph Short Circuit Alarm
STATE: PKP
After the 200 ms time delay expires, the display shows the following message only:
A4 TARGET MESSAGES
Ph Short Circuit Alarm
STATE: OP
Once the condition clears, the target message will disappear.
CHAPTER 4: ACTUAL VALUES
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
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