venkatesan


{ City } vriddachalam
< Country > india
* Profession * b.e ( e.e.e)
User No # 33291
Total Questions Posted # 0
Total Answers Posted # 8

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Questions / { venkatesan }
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Answers / { venkatesan }

Question { ONGC, 10623 }

how many typetesting of transformers?


Answer

1.insulation resistance test
2.ratio test
3.short circuit test
4.open circuit test
5.back to back test
6.oil testing

Is This Answer Correct ?    4 Yes 3 No

Question { 58846 }

phase clearance between phase to phase and earth


Answer

phase to phase=130mm
phase to earth=110mm

Is This Answer Correct ?    25 Yes 10 No


Question { L&T, 65711 }

WHAT IS THE USE OF EARTH SWITCHES?


Answer

earth switches used in substation . in that when isolator
OPEN condition earth switch is CLOSED. here any induction
that passes thro' earth switch to ground.when isolator in
CLOSED condition Earth switch should be Open

Is This Answer Correct ?    68 Yes 9 No

Question { 6001 }

what is mean by current? and voltage?


Answer

current: flow of electrons
voltage: potential difference between the two points

Is This Answer Correct ?    22 Yes 2 No

Question { 11924 }

in transmission line 11kv is step up or step down? why?


Answer

In transmission line we can step up the voltage 11KV to 132
Kv,230Kv,400KV and to reduce the losses .

Is This Answer Correct ?    14 Yes 2 No

Question { 11542 }

why tan delta test conducted in electrical equipmenr


Answer

to checking transformer bushing

Is This Answer Correct ?    10 Yes 33 No

Question { Torrent Power, 17052 }

What is the lower limit of megger value for 66/11KV power
Transformer ?


Answer

minimum 200-250Mohms

Is This Answer Correct ?    5 Yes 2 No

Question { 3339 }

what does kirlosker deals with?


Answer

it deals with HT motor & transformers

Is This Answer Correct ?    0 Yes 0 No