why the supply power frequency is 50hz in india? where as it is 60hz in US?

4 Answers  

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WHATIS TIME CONSTANT? WHATIS ITS SIGNIFICANCE? ILLUSTRATE THROUGH EXAMLES.

0 Answers  

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I am an electrical power engineer and arranged power system for a data center, I installed MCB, ELCB and erthing system TN-C-S. But some times several ELCBs Disconnect circuits at the same time! what may be the reason? (the ELCBs are 25A ,30mA)

9 Answers  

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In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

0 Answers   Aegis,

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how to calculate neutrel current

2 Answers  

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what is single phase motor?

5 Answers  

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What is the differemce between Pulse transformer and Welding transformer.

1 Answers   BARC,

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What is on delay and off delay timers

1 Answers   NCC,

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What is the practical way to calculate the cable size for known ampere load?

0 Answers  

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what is difference between ELCB, RCBO & MCB

2 Answers  

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how we can set the IDMT relay.

0 Answers   Suzlon,

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How magnetic balance test of single phase transformer is done,Especially in ESP transformer rectifier set.

2 Answers   Bhel,

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