Answer / rakesh

In an air blast breaker a high velocity jet of air is made
to flow through the arcing contacts that extinguishes the
arc much before natural ac current 0 is reached , the air
blast breaker retains the same extinguishing power
irrespective of the nature of the fault , onsequently the
blast of air sweeps out the ionised particles in between
the contacts thereby buiding the rsistance and hence
ultimately extnguishing the arc .

what's burden resistor, why it's used?

1 Answers   Bhel, TVS Group,

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can any one provide some material?

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2 Answers   Divis Laboratories,

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what is inrush current in transformer?

17 Answers   Bhel, Essar, GMR,

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What is Magnetic Current Test of Transformer.

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1 Answers   ABB, ABC, Indo Asian,

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How to work E.L.C.B and how to connect in circuit.

0 Answers  

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