gd eve frndz my qstn is how convert sound energy to electrical energy

1 Answers   HCL,

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why dc supply is given for excitation of ac alternator?how dc can produce flux?

5 Answers  

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What is the safety of UPS?

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how can 3phase motor speed can be controlled without vvf drive?

1 Answers  

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In Delta connected capcitor bank, One bank failed due to some problem. Can we connect Open delta capacitor bank to 3 phase motor. The motor voltage rating is 6.6KV. IF yes what changes will happen?

1 Answers  

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What is core CT & it's function?

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what is ALF and ISF in current transformer?

1 Answers  

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How many gap between finger contact in a.c.b. and v.cb.?

0 Answers  

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In UPS, battery connections if parallel connection given, what will happen?

2 Answers  

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I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain

0 Answers  

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what is diff kav & kvarh?

3 Answers  

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in how many ways we can make induction motor to run in reverse direction?

5 Answers  

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