Why sometime AVR and sometime Booster coil is used in
Alternator? what is the diferance between AVR & Booster
coil due to which they are selected
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in our 6.6kv motor feeder[it is having two sources from Bus A&B] earth fault relay is acting, we checked CBCT connection and cable meggerd values found very good still earth fault acting during first two are three start after that it will hold. please clarify what was the reason. if same motor is starting from other Bus-A it will start.
1.Why hydrogen used for cooling in generators 2.Why electrical equipment protected by ground 3.Why earthing for transmission line 4.What is rms value of half wave rectified square wave. If Rms value of actual wave 2amps.
which has more heat effect(dc or ac)
HOW SKIN EFFECT REDUCE THE CROSS SECTION OF THE CONDUCTOR
what is meant by negative half cycle
Name different types of circuit breakers and their voltage ratings?
what is unit of inductance
12 Answers Bhel, Bosch, OSML, Vijai Electricals, Voltage,
what composit error,ratio error,phase error in CT and PT??
In separetly excited m/c,we excite the field by a dc source,what not with ac source?
Define step response?
Slipring moter find external resistance
why the earth conductor in top of the tranmission line ?