Answer / sunil

At this condition, Pole discripency trips the Before breaker or previews breaker so that mechanical person can short out the pole mechanism problem because power isolated.

Answer / kamalesh

question incomplete....

Answer / mustafa

it is due to mechanical problem
if one pole does not open possibility of heavy arching,for
that reason only AB switches provided on both side of the
breaker

i have 6oo kva dry type transformer and its neutral is not grounded even body of transformer ground i want to know it is safe or not ?

2 Answers  

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what is the CT & PT. where is it uses.what is the using that plese kindly answer me...?

4 Answers   Cap Gemini, JLL,

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what is meant by servo motor ? how its operating either AC or DC?

0 Answers  

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how many by pass system in online UPS.

4 Answers  

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how to calculate the voltage drop in electrical cable while laying cables?

2 Answers  

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IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?

0 Answers   ABB,

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What do you mean by pf of a generator? Power factor purely depends on the load (wether inductive, reactive or unity) then what does the pf mentioned on the generator nameplate means?

3 Answers  

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What are the advantages and disadvantages of short-pitched winding?

0 Answers  

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what will be the effect if you were using different brands of outlets?

0 Answers   TESDA,

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in 220/132 substation in place of PT what equipment used & what r the role of that equipment

2 Answers  

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what is the need of capacitor in transmission lines?and how it works.

2 Answers   SCCL,

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why dc is used in control circuits for MV & LV switchgeras instead of ac

0 Answers  

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