Answer / mk

In Three phase supply ,phases are 120 deg appart and act as ref against each other .for single phase application, neutral which is commen point of phases is ref.ref is essential.ground pt is for safety where leakage current if any will pass to gnd.

Answer / naresh

ground wire is where you connect diff equipment to control their potential diff at one level.this applicable to only body parts only. like a generator where engine , alternator , radiator connect with a wire to control their potential generating due to rotetion of generating set.
and eath wire is the wire which connect between body to earth point of earth pit to control potential of equipment.
this point also imp. to human and machine safety

An AC coil to give DC supply whats happen in the coil.what type of problem are create.

2 Answers  

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Why diversity factor are applied to the load?

2 Answers  

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Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

0 Answers   DAE,

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pls send previous bhel electrical papers

0 Answers   Siemens,

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Iin ESP why positive is grounded ? why not negative ?

0 Answers  

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what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

0 Answers  

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Transformer cores are laminated in order to A simplify its construction B minimize eddy current loss C reduce cost D reduce hysterisis loss

0 Answers  

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Why we use 2core cable for Dc motor.Can I use 3core?

5 Answers   JK Paper, Maharaja Whiteline,

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how to select the power contactor in Diffrent AC motors.

6 Answers   Titan,

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why we usually call 415 volts instead of 440 volts

3 Answers   S Tech,

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i have a wire.and the current flowing in that.when we cut the wire then why dont we seen the elactrons....

8 Answers   GM General Motors,

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which is better to use svc or synchronous condenser why ?

0 Answers  

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