what are the C&D CHECK OF DG set

1 Answers   HCL,

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What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?

0 Answers  

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plz tell me about BACK emf and how it generates?

2 Answers  

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Why Lightning arrester used? Can we use piece of iron as a core material of transformer, if No, why? In CRGOSS material what is meaning of cold rolled grain oriented? Why Impegrenation of Transformer is done? Properties of Insulator? what is phase angle? Testing of transformers (Routine & Monthly)?

6 Answers   NTPC,

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What is the difference between KV,KVAR,KVA,KW?

6 Answers   L&T, PowerHouse, YUI,

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WHY IL=IPH IN STAR AND WHY IPH=IL/1.732 IN DELTA? WHAT IS REASON BEHIND IT?

0 Answers   Siemens,

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what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

0 Answers  

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What is GIS Substation and how it operate? where these type of substation installed?

8 Answers   Power Grid,

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Swg formulae

0 Answers   Bokaro Steel,

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Why a dc generator gives result during two different condition,- 1)separately exited gen.- Eg=110 V, field current=0.25 A. 2) self exited gen.- Eg=30 V, field current=0.025 A.

1 Answers  

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What is Grounding? any difference b\w earthing? if yes plz explan??

3 Answers   ABB,

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In a HT switchboard where Nos. of Transformers are connected, how to decide Incoming cable size? Whether Cable should be rated for connected load or maximum demand?

1 Answers   Power Grid,

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