what is the difference between ac drives and dc drives?

1 Answers  

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Transformer TTR test procedure

2 Answers   Descon,

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What is the difference between Neutral And Earth ?

2 Answers   Ambuja, Reliance,

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What is the Ohms low calculation

2 Answers  

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which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant

0 Answers   Dalkia,

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what is the current limit of lighting arrester ?

1 Answers   ABB,

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When testing an earthing connection, we use a 60 or 100 candle bulb with a phase connected direct from supply and the other wire to the new earthing provided.If the bulb glows then the earth is ok.Else earth connection is not Ok. So, why dont we can use all the home appliances taking a single wire from the phase and the return connection to Earth instead of return connection to neutral?

2 Answers  

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I want the details about BHEL company examination.Can anyone able to help me please.

0 Answers  

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In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

0 Answers  

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why use phase displacement in transformer.and effect of phase displacement on transformer

0 Answers   IOCL, ONGC,

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what is power factor

3 Answers  

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Name the earthings?

3 Answers   HSL,

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