Answer / thavam

UPS uninterpreted power supply this out put automatic
voltage regulation.
inverter DC to AC converter for include UPS one of the
circuits

Answer / dinesh.n

UPS-Uninterpreted Power Supply,once the power failure the change over process will b done with out any fluctuation because of strategic switch is available in the UPS.

Inverter-Once the power failure the change over will b done with interruption bcoz DC power is converting AC.Batteries is charging at the time power available then DC power is converting into AC at the time of power failure.

Why there is not any reactive power in DC although it causes magnetic field.

7 Answers  

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What is the purpose of reactor in over head transmission line.Can you any explain it.

2 Answers   Dr Reddys, L&T, Reddy Labs,

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what is the definition of Nominal current or voltage

1 Answers  

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what is a starter ??

2 Answers   NPTC,

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What is the advantangeous over SFU (switch fuse Unit) & FsU (Fuse Switch unit) which one is better & application of Both?

2 Answers  

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which motor is used in mixies

10 Answers  

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why the secondary winding of the transformer is not open circuited ?

5 Answers   Nepal Electricity Authority, Torrent Pharma,

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Y phase plates are used in transmission line??? what is there need???

0 Answers  

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what is use of capacitor in fan

8 Answers   ABB,

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how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.

0 Answers   L&T,

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friends., why celling fan rotate cockwise direction and wall fan anticickwise direction ?

3 Answers  

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what are the insulation properties.

2 Answers   Cable Wireless, MAHINDRA,

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