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when any relay trips in any ckt then what type of setting is
there in motor?what is function of relay in that ckt?
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Answer Posted / sath
relays are classified into
under current, voltage, power relay,
over current, voltage, power relay,
distance relay,
directional or reverse current relay,
differential relay.
based on any one of the catageries the relay will
operate.Based on the application of the motor relay will
selected.
These are the device which direct the abnormal condition in
the electrical system by measuring the electrical quantity
like voltage, current, frequency, phase angle.Due the
abnormal condition any one of the above mentioned values
are changed.After detecting the fault relay will complete
the trip circuit and energised the circuit breaker.Hence
isolate the fault current.
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