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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plz explain the snubber circuit unit

1 Answers  

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Explain the power rating of a bulb, say 60W, what if the voltage changes

4 Answers  

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how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

0 Answers  

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What will happen if we give AC supply to DC motor?

4 Answers  

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what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

0 Answers   Jindal,

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how to work current transformer and potential transformer

1 Answers   Adhunik,

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Power Factor Controller

1 Answers  

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What is difference between insulating medium and fault current interruption medium in a switching device.

0 Answers  

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what is meant by dedicated earthing?

1 Answers  

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How can one connect three source of electricity in a house..the source are 2 gen and one electricity.

2 Answers   SAUDI ARABIAN BAYTUR, Wantro Technical Services,

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difference between the earth mat and earth grid?

3 Answers  

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