tell me about roaster switch .& what is the function in
transmission & distribution?
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IT IS DESIRABLE THAT THE INCOMING MACHINE SHOULD BE A LITTLE FAST AT THE TIME OF SYNCHRONIZING.EXPLAIN?
What is meant by locking of rotor in synchronous motor? Explain me locking in detail?
What is a formula to decide the size of the cable of the star delta motor ( From Contactor to the motor 2 runs )
if two bulb of 50w &30w apply in series having 230v the which bulb glow bright ,why
If excitation will increase, then what will be the effect on power factor? Will it decrease or increase?
In a panel 2500A ACB is the incoming breaker then what is the size of the bus bar?
what is the control circuit for operating the clean room air shower
1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system
why breather cap filled with oil?
What is the permissable nutral current of three phase system as per IS standards?
What are the advantages of using distance protection schemes as opposed to normal overcurrent/ earth fault protection on high voltage feeders.
What is ht lt switchgear.
3 Answers Bhel, HBL Power Systems,