what is the string efficiency

1 Answers  

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why the efficiency of the dc machine is high ,when it is operated as a generator?

3 Answers  

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The principle of switching circuits for different types of batteries in application of storage systems

0 Answers  

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what is the principle of generator , induction motor,d.c motor

1 Answers  

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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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whats the one main difference between UPS & inverter ? And electrical engineering & electronics engineering ?

16 Answers  

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What will happen if 60 Hz rated transformer is connected to the supply of 50 Hz say 415 V (3-phase) step up to 3.3 kV...?? ?

2 Answers   Essar,

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1. name the relay for protecting transformer 2. Current Transformer 3. potential Transformer

1 Answers  

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How we calculate the current carrying capacity of H.T. cabel?

0 Answers   Bhel,

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how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.

0 Answers   Hindustan Unilever Limited,

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Can you any explain about active,reactive and apparent power in power system with example.

1 Answers  

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What is a feedback in control system?

0 Answers  

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