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what is a diffrence between MCCB, RCCB, MCB, & ELCB ?
what is rated current e.g. on motor name plate indicated
that is rated curent?
what is full load current?
If we run D.C. motor with mechanical coupling and we measure
voltage on terminal it shows voltage or not ? same in AC
also possible ?
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Answer Posted / manoj kumar
MCCB IS A PROTECTING DEVICE THAT PROTECTS CIRCUIT FROM OVER
LOAD AND SHORT CIRCUIT IT COMES WITH CURRENT SETTING THE
SAME FUNCTION IS OF MCB BUT THERE IS NO SETTING
RCCB USED FOR PROTECTION OF PROPERTY AND PERSON IT DETECTS
LEAKAGE CURRENT AND BREAKS CIRCUIT
RATED CURRENT IS THE CURRENT FOR WHICH EQUIPMENT CAN
CARRYSAFELY WHITHOUT HEATING OF ITS PART ABOVE ALLOWABLE
TEMPERATURE
THERE SHOULD BE SUUFICIENT RESIDUEL MAGNETISM IN POLE OF
MOTOR TO SHOW VOLTAGE IN CASE OF DC MOTOR , OFCOURSE IT CAN
RUN AS GENERATOR
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