what is mean impedance?

7 Answers   ONGC, Wipro,

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Does VT metering core can be used for synchronizing.

1 Answers   Shrishti Power Technologies,

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how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example.

5 Answers  

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In Plug used in house,Why Earth of the plug more thicker & deeper?

8 Answers   L&T,

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What happens when the power factor is leading and its disadvantages.

1 Answers  

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circuit breaker is ...............connected with circuit

2 Answers   Rancho,

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how we start 40w tube light with 4 diodes,2capacitors,1 choke and without starter.(a product avilable in market which lights burnt tube lights also)

0 Answers  

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1.What will be stored in online ups EPROM IC?

0 Answers   IBM,

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1.what is difference in maintain Hz again Hz in USA ? 2.how to calculate the battery AH? 3.why are yearly maintained in transformer how many tests in required?

0 Answers   Areva, Google,

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why three phase system is not preferred in aircrafts power cckts if yes than explain reasons?

3 Answers  

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what type of oil is used in transformers? a)conduting b) insulating

25 Answers   ABB, LGS,

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1.what is use of isolation transformer. 2.Differance between KWH,KVAH,KVARH,KVA. 3.Main use of the CT and PT.

1 Answers  

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