How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

0 Answers  

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how much amp MCB is required for 1/2 kva power back up?

2 Answers   Havells,

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How CFL &T5 tube light glows?

0 Answers   HAL,

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ARE YOU NOURVAS ?

4 Answers  

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1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

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what are the names of oil used in transformer and its chemical name?

11 Answers   Bhel, CSEB,

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can we use only a isolator in the subtation..

1 Answers   ABB,

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What is the knee point of voltage of CT?

5 Answers   NTPC,

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In our factory there is one no. of Series trip HT 6KV OCB. 1. Is it possible to measure CT out put current by 440V Clamp meter? The measurement is required for knowing the exact value of current in CT secondary to set up protection for transformers. 2. plase forward the single line diagram of AMF panel?

1 Answers   HAL,

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We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

0 Answers  

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How to calculate per unit impedance of transformer?

0 Answers  

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how to build a network which step down 415v to 1v rms

0 Answers  

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