why power factor is only cosine angle not sine angle?

2 Answers  

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How to calculat the size of copper& aluminium wire ?

5 Answers   Hindalco, IOCL,

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what is the difference b/w neutral and ground?

4 Answers  

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what is the full form of KVAR

6 Answers  

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

0 Answers  

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why transformer rating in KVA or MVA instead of KW n MW??

3 Answers  

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why master trip(86) used in eletromagnet?

1 Answers  

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PLEASE EXPLANE WHAT IS " MOSFET AC CONVERTER"? WHERE AND HOW IT IS USED?

2 Answers  

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1.what type of oil used in tranformer. 2.oil vesocity. 3.oil gauge. 4.witch time oil filterring & how much temperature maintaned.

9 Answers   NTPC, Reliance,

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1. What are the tests to be carried out for CBCT? 2. can measure the secondary resistances? 3. with respect to secondary maximum how much voltage can be applied for IR test.

0 Answers  

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What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

0 Answers   Ambuja,

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what is CT class? depending upon which it is classified?

3 Answers   Siemens,

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