Answer / master rapper

a closing resistor is attached to the poles of a circuit breaker to provide damping effect to over-voltage due to switching transients. It simply provides additional protection to the insulation/dielectric of the circuit breaker.

Answer / william wright

Closing resistors are also intended to allow shunting of
over-voltages power surges that cause that can damamge the
system protected.

Answer / k.prakashchandra

You mean the resistance connected in series with the
closing coil ? It is used to reduce the current in solenoid

what is breaking capacity

1 Answers  

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Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

0 Answers  

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what is CT class? depending upon which it is classified?

3 Answers   Siemens,

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how to mesure the earth pit value and what is the minimum value of single earth pit?

3 Answers  

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two TG running in parallel at equal load.one TG CB tripped in reverse power relay.after tripping found its excitation was on & turbine running at rated speed.Please clearify why that TG tripped in reverse power ?

1 Answers   Bhel, Birla,

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What is the use of 1:1 isolation t/f in any circuit...?

3 Answers  

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say a transformer is designed for 33/11kv step down with ratio 0.33 for load 1 mva. if am giving 11kv as a input that same transformer what will happen to its o/p voltage. and whether it can be operated for 500kva

4 Answers  

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Megar test tell sufficient resistant

1 Answers  

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how fan speed decrease or increase by using regulator? thank you

3 Answers  

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can we find the inductance of a induction motor?

0 Answers   Trident,

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What core magnetic balance test of transformer? How to do this test in a three phase Star star (star-LV, star-HV) transformer? How to measure and where to measure?

1 Answers   Alstom,

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One amps in HT is equal to how manys amps in LT

5 Answers  

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