What is meant by Guard relay ?

2 Answers  

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What are protection of transformer on HT side & on LT side?

4 Answers  

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1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

0 Answers   IBM, Kirloskar,

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WHY THE SYNCHRORONOUS MOTOR IS NOT SELF STARTING, AND WHY THE STATOR AND ROTOR IS COUPLED?

3 Answers   Essar, GCUF,

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Why compensation is necessary in feedback control system?

0 Answers  

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In induction machine when the load increase the current will increase .why? what is the relation ship between the sleep and current drown by stater?

1 Answers  

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How the Transformer oil testing is done & Why oil dielectric goes LOW & what is solution for that ??

3 Answers   NTPC,

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At which conditions a synchronous motor acts as a synchronous condenser?

9 Answers   KSEB,

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please tell me formula of 3 phase induction motor under condition{1]when we 3 phase motor starts without load in star or delta connection?thanks

1 Answers  

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What's the part of OTCC in transformer?

7 Answers   Bhel, RRB,

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Why don't we use ground free electricity to avoid electric shock.As birds are do not get shock.

3 Answers  

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best manufacturer for busbar for outdoor switchyard having double bus bar scheme, can any one share technical specification of busbar. 132kv voltage ?

0 Answers  

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