What is the difference between ELCB and RCD

7 Answers  

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why odd hormonics only will effect the power system.why not even hormonics

2 Answers  

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what is reactive poower

3 Answers  

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sir , what happen if we decrease ( approx 3 inch ) the lenth of shaft in 110KW Induction , three phase motor. actually a 110KW motor is couppled with star couplling to 120TR compressor. When we doing maintenance in compressor it is required to skid the motor backword and resulting dis- alightnment . so we want to change the tyre coupling in place of existing coupling. so it is required to cut off the rotor aprox 3 inch form driving side.

2 Answers  

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How many types oil using in transformer ? How many letars using in transformer..?

0 Answers   TATA,

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what is the difference b/w circuit breakers and relays?

3 Answers  

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how to measure the transformer resistance values(dyn11)?and howmuch the minimum value?

0 Answers  

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What is industrial plc

0 Answers   TCS,

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What is thyristor?

13 Answers  

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What is NDR in HT capacitor panels.

2 Answers  

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Instead of single phase(220), if apply Phase to phase supply (eg: for lighting fixture). what will be the power formula? what will be the volt and current value? please explain me with some example.

1 Answers  

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What is Automatic Voltage regulator(AVR)?

6 Answers   Cummins,

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