why only violet glow appears in corona effect?

1 Answers  

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How to test IR testing & magnetic balance test

0 Answers  

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If 110 volts ac is mixed up ith 12 volts dc what will be the resultant voltage and what is the wave form?

1 Answers  

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low frequency protection why recomend?

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Why neutral grounding Transformer provided for generator?

1 Answers   Siemens,

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What test must you do before powering up a circuit that you have been working on?

0 Answers  

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List out the types and name of the motor under their application?

0 Answers  

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control wiring purpose,standards, ferrule code standard, interlock, schematic, symbol

1 Answers  

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during parallel operation of two ac generator which condition must match before taking both parallel i.e speed /voltage rating /kva/exciation

2 Answers  

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can you any one give exact mathematical relation between AC current and DC current?

0 Answers  

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which pump is suitable for home use ?

3 Answers  

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if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

0 Answers  

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