7. Why AC motors, AC bulbs etc... are donot operated by DC signals? and Why DC motors, DC bulbs etc... are donot operated by AC signals?

2 Answers   Bhel,

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As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

1 Answers   NEPC,

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method to check earthing

5 Answers   ECC,

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what is diffrence between MH LAMP and HELLOZEN LAMP

1 Answers  

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why is the rating of transformer done in kva and not in kw.

21 Answers   Honeywell, Satyam,

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what size of copper busbar use for 11kv 630A

3 Answers   ABB,

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cable tray sizing & selection

1 Answers  

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What is power factor why we should maintain the power factor unless what will happen

0 Answers  

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1 hp single phase motor is more likely to get hot thsn inone hp 3 phase motor its true or false? If true why?

3 Answers   Focus, Focus Energy,

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What is Engine?

6 Answers   HSL,

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Why cpaciter opposes sudden changes in voltage?and how?

1 Answers  

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How vaccum is formed to create a vaccum interrupter or anything related with vaccum?

6 Answers  

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