Answer / balamurugan

online ups no change over time (0 ms)from EB supply to Battery supply. offline ups some mls time to change over from EB supply to battery supply (more or less 3 ms )

In what way does the variable ratio-arm improve the usefulness of the wheatstone bridge?

1 Answers  

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what are advantage and disadvantage of zener diode?

2 Answers   Infosys,

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Where r use in Dc motor in power plant?

2 Answers  

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what is the difference between neutral and earth?

2 Answers  

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how water and air molecules are conduct the heat?

1 Answers  

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A 10 kva ,400v/200V , single phase transformer with 10% leakage impedance draws a steady short -circuit line current of

1 Answers  

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An alternator is started without excitation then how much voltage it will produced at strating at full rpm??

4 Answers  

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In power plant synchronizing time (synchroniging meter should be 12'o clock position only. why not 6'o clock position not possible.

1 Answers   ITC Infotech,

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What is the numerical quantity of sqcm?

0 Answers  

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what is the minimum voltage require to injure our body?

4 Answers  

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WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....

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Where to use pt and where to use CVT

2 Answers  

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