How can find thermal state value in relay for calculate thermal overload.

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IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?

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Define what is difference between fuse and breaker?

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how many types of transformer.

3 Answers   Technocrats,

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how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?

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what is slip what is the use of slip?

1 Answers  

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where is highest transmission voltage is used in india

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What kind of preventive maintenance are there for transformer?

0 Answers   Gulf,

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why do we connect voltmeter in parallel,why not in series,and why do we connect ammeter in series why not in paprallel...

4 Answers  

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Why does amplifier gain reduce?

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What are test signals and their significance?

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what are ABCD curves in MCBs and how we observe that curves?

2 Answers  

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