Answer Posted / s syed mohamed

Actually the thing is vacuum has high arc queching property
compare than air .becoz in VCB ,the die electric strength
is equal to 8 times of air . That y always vaccum used as in
HT breaker and air used as in LT in these breakers employ
with high resistance intruption principle.

orifice sizing how done, checking & selection

2018

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Can we transmit digital signal to long distance ?

1999

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hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

3004

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what is the function of gss in the dg set.

2021

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What is the meaning of loop in transformer

1856

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WHAT IS THE MEANING OF BALANCED / UNBALANCED IN STABILIZER TYPES.

2710

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what is consequences of neutral and earth connect?

2172

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what is cascade speed control device?and how this device control the speed of motors?

2227

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any one please tell taht what type questions will be asked in BHEL interview, i am having interview on 24th Dec, please send this to mail pradeepsistam@yahoo.co.in

2049

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Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .

3582

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234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

2091

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how 650 volts creates? where is use?

2250

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what is the efficiency of thyristor

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How to reduce the static electricity producing in solvent room? By P.D.Patil BioCon

2151

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Installation method of self treated earth electrode.

2115

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