Answer / bivin shankar

in vcb the arc extinguishing medium is vaccum which is
having high arc extinguishing capacity .but in ACB the arc
extinguish medium is air which is having low arc
extinguishing capacity, so if we use the air circuit
breaker in the place of vcb the arc will not extinguish and
may cause the equipment damage.

What happens if 25 Hz frequency is applied for 400/200,50 Hz single phase Transformer.Will Voltage increase ?

2 Answers   Bhel, Dawlance, IBM,

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If auto trip is operated, can you close the breaker.

2 Answers   KSEB, L&T, Siemens,

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I have iti elec, 1st aid, and 5 yrs experience in 7.5 mw power plant. Am i eligeble for 11kv license in telangana state..when, how to apply for that.?

0 Answers  

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what is the ambient temperature of transformer oil & winding?

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why we cannot apply ohms law to transformer?

3 Answers  

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anybody can give the voltage value for 1M ohm

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The CHARGED BATTERY GET DISCHARGED WHEN IT IS NOT IN USE FOR LONG TIME.GIVE REASON.

1 Answers  

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what is the uses of C.V.T transformer in switch yard?

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wat is the need of capacitor on aceiling fan?

5 Answers  

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