why exterrnal C.T. protection is used even though ACB& VCB is having inbuild C.T. protection?

2 Answers  

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What is the need for checking knee point voltage for CT's?

1 Answers  

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what is the mean of"turbo" in turbo alternator???

1 Answers   CCCL,

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please explian how may types of maintenance works.

4 Answers   HP,

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For the requirement of a furnace of temperature range up to 1200 oC using silicon carbide rods, What is the required rate of transformer needed (please do it with all details)?

0 Answers   Intel,

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What happens to voltage when current is zero?

0 Answers  

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what is the working of air drayar

1 Answers  

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and gate circuit diagram,amplifier circuit diagram

0 Answers   NHPC,

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Please give me a erda placement paper

0 Answers  

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What differance between Circuit brekar and Isolater?

14 Answers   TATA,

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Any link for Electrical objective type questions ?

0 Answers  

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when we decide to use soft starter drive or vfd drive in mcc to operate apump?

0 Answers  

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