Answer / r.sreemanikandan

VFD used to control the speed by varying the frequency.
when the frequency is reduced the power consumption also
will be reducing. by this way we can the save the power
consumption also

Answer / vijith

we can save the energy by controlling frequency through
cdp& we can protect the motor also

actually i can't understand what is 3dB ? and it's really not clear to me.please any one let it me be cleared.

0 Answers  

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what is vch ?

1 Answers   CTS,

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What do you understand by external characteristics of a d.c. Generator?

0 Answers  

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I decided to provide a 11KV / 440V Xformer in my Substaion. What are the protection required for that?

5 Answers  

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11 kv metering is done in my factory.Meter show PF 1.000 but kvarh lag&lead show 24&94 respectively & Avg.PF is .956 .? is what i do for inproove my PF to 1.000

3 Answers  

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what is the minimum voltage require to injure our body?

4 Answers  

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How to control the dc motor in ac supply without thyristor circuit?

2 Answers  

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What are the advantages and disadvantages of the dc motors?

0 Answers  

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Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?

0 Answers  

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Define filter?

0 Answers  

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what is the difference between contactors & relay.

2 Answers  

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why electron produce magnetic field when it is in motion?

0 Answers   Power Grid,

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