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what is meant by trip circuit supervision & directional or
non directional over current ?
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Answer Posted / k.prakashchandra
Trip circuit supervision is for supervision of trip circuit
for loss of DC supply,faults on trip coil or cables,faults
in auxiliary contacts and in itself, with breaker in any
position.Directional OCR acts for over current in one
direction only where non-directional acts for both the
directions
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