What is CRT (Contact Resistance Test) for Isolators or Dis- connector Switches? Why we performed it & whats the Testing procedure.

1 Answers   Siemens,

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What is pd controller?

0 Answers  

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Why pmg used in electrical generators for excitation.is there any other method without pmg ?

1 Answers  

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i want to know that what is the eligibility critaria for ongc exam?

0 Answers  

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tate and explain super position theorem

2 Answers  

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single phase can run in PVC conduit. Three phase can also run in one PVC conduit. But two phase cannot run in one PVC conduit. WHY? reply plz....awaiting your answer.

8 Answers   L&T,

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This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

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explain PV modules in solar energy generation.

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What is restricted earth fault protection ?

1 Answers  

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What is the formulae of Megger value for a A.C.Motor

0 Answers  

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what is the d/f b/w iverter & converter.

5 Answers   Indeco,

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I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.

0 Answers   Jindal,

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