what is AB switch???

6 Answers   NTPC, Simplex,

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How do you maintain the batteries for generators, what is the daily maintenance of a generator?

2 Answers   Jindal,

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Relay setting for earth fault of reciprocating and centrifugal compressor motor feeder.Setting will be different or same?

1 Answers   Reliance,

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what will happen when two dc motors are connected to each other and anyone of them rotated?

1 Answers  

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I have two power supply.a)govt. power b)Captive power.3 phase load connected inside factory.when source change govt. source to captive some motor rotate reverse. Is phase sequence changes when if off & on?If I off generator & on it again is it possible to get changed phase sequence??

4 Answers   ABB,

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if a single phase 3 hp submersible pump of Crompton Greaves is moving in reverse direction and sometimes it moves in rigth direction ,then what may be the cause....

2 Answers   Crompton Greaves,

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There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

0 Answers  

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On monitor it is written that current rating is 2.2 Amps. Is it a monitor current drawing capacity or CPU & monitor. If it is only monitor rating, what will be the rating of only CPU and what will be the power consumption rating of PC, Monitor & Scanner? In net, I learnt that computer consumes only 200-300W while running. With the current rating of 2.2 Amps, how it could be 200-300Watts. Please explain?

3 Answers  

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why secondary of c.t. will kept open ?

4 Answers   L&T,

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What are stable systems?

0 Answers  

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how many joints are allowed in underground HT cable of 1 KM

0 Answers  

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What is different between Difnit time and instatous over current relay

0 Answers   NCC,

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