Answer / hrb

single phase 1hp motor carries 4 ampere and in case of 3phase motor of 1hp carries 1.28 ampere in each phase . temperature is depends on square of current ie., i*i*r

What will happen if primary of transformer is fed with Square wave instead of sinsoidal wave ?Will it operate or Not?

3 Answers   Areva,

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how the direction relay sense rhe directional fault?it's forward or reverse?

2 Answers  

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what about the power of wattmeter at starting and loding?

0 Answers   TATA,

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What is the formuala to calculate the rating of motor protection circuit breaker

0 Answers  

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what is neutral ground resistance relay? how it is helpful in protecting system?

5 Answers  

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How do you select a cable size(cu and Al) for a particular load

6 Answers   Pepsi,

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What are the safety equipments you should use while you are in a hvac switch yard

1 Answers   GPSC Gujarat Public Service Commission,

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How multimeter shows phase to phase voltage 440V & phase to neutral 220V.

2 Answers  

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how to reduce the transformer size in ups ?

2 Answers  

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Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?

0 Answers  

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If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?

0 Answers  

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can any one help me out by posting something related to rvnl interview for site engineer electrical.? what is the procedure? what kinda question they ask us? how long the interview goes? and any tips? and any thing you want to share?

0 Answers  

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