the current which flows during lightening is ac or dc,,,,,,,,,,, WHY

6 Answers  

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what is the diffrantial relay???????why we use it on the MDB

5 Answers  

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what is the grounding Calculation formula? spouse i want to provide grounding to 3phase 18kw motor or i want to provide ground to 3phase 10kva dry type transformere or you give me any exemple...... Thanks.

0 Answers  

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difference between the earth mat and earth grid?

3 Answers  

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Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

0 Answers   HAL,

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How to calculate loses in transformer of 160 KVA ?

0 Answers   IDV,

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What is difference between Harmonic and Non harmonic Capacitor Bank?

0 Answers   TATA,

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what is the term of desruptive voltage

5 Answers   Bhel, Energy Infratech,

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send me all basic electrical question and answers

0 Answers  

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why insulation cost is more in underground cable than in overhead line?

2 Answers  

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why there is a temperature rise at different metal to metal contact at cable lug??suppose cable is aluminium and the lug is copper,than why the temperature rise takes place??

2 Answers   JK Cement,

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does meager test perform on lightning arrester ? if doesn't then why ?

1 Answers  

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