Answer / Harish Jain

Safety aspects of a vacuum circuit breaker include: no arcing during operation, low heat generation, high rupturing capacity, and ability to withstand repeated switching operations without wear or degradation.

what is meant by impedance & transient protection?

1 Answers  

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How many kw will suply from one db

1 Answers  

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why is a earth pit 10 ft usually? And, what should be the distance betweeen two earth pit?

4 Answers  

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I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.

1 Answers   NCC,

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What is the minimum distance between taransformer (say 2000 kva)and its earth pit?

2 Answers   Bhel,

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how a vibration switch's high signal will going to trip the motor? can u explain with some examplesand wiring diagrams?

1 Answers   Bhel, Wartsila,

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What is the operational principle of direct current current transformer and direct current potential transformer?if possible plz reply with ckt. diagram.

1 Answers  

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how to check the 3ph capacitor is good or not.

14 Answers   MacLellan, Yash Technologies,

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power transmission pole used one support , that only for support or earthing

1 Answers  

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what is the design factor that affects the size of a motor ?

3 Answers   Reliance, SGI,

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Explain the construction of the conservator, operation and purpose, and draw the diagram of the conservator.

1 Answers   Siemens,

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What can a fresh(without experience) electrical engineer contribute to NTPC( Or any PSU company) growth?

3 Answers   NTPC,

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