Answer / sundar

Dc system direct current or direct voltage system.This is getting pulse depend from incoming source.
Single phase system giving pulse positive and negative pulse but positive single pulse only negative ground.Two phase system giving four pulse ..
Negative pulse like ground.If you touch negative when circuit is not closed no effect?O effect?

what is relation betn. KW & KV?

10 Answers  

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upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

0 Answers   ABC,

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why we are using earth pit in sub stations.?

0 Answers  

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What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??

0 Answers   Emerson,

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why dc did not flows to earth?

2 Answers  

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what is phase to phase fault? what is line to line fault?

6 Answers  

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What may be happen if neutral and earth is shorted in a substation

3 Answers   Bureau Veritas,

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Hello sir. if u have electical engineering exam paper then plz mail me at bhumika_1187@yahoo.co.in. i m appearing exam for HPCL.

1 Answers   HPCL,

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i am using auto transformer for starting of induction motor to provide reduse voltages...but the principle of a tansformer according to definition"which transform energy to on circuit to another circuit with constant power and constant frequency". so if i am using reduse voltage then current obsely hige because power is same.but we use auto transfarmer for starting of induction motor to give low current.but here according to definition we are giving hige current.

0 Answers  

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why the electrical insulators suspention breakdowen

2 Answers  

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What is the purpose of stand by earth fault protection for transformer ?

0 Answers  

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What is the major difference between P.T. & C.V.T ? Why CVT is used in HT Transmission line in place of P.T.?

13 Answers   APGenco, OPTCL,

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