Answer / mskailash

lighting arrestor design is withstand only 1.5 or 2 times
of system voltage.if lighting is occur voltage and current
level is more it will bypass that voltage and current to
the earth.

Answer / rajnikanth

lightening works on the principle of corona discharge.the
sharp edges of the arrestor gets accumulated with charges
once a lightning of high voltage occurs.these charges are
then passed to the ground.

What is Automatic interlocking circuit dighram between two contactor for DG SET panel.

1 Answers  

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how can I check HT cable ?

2 Answers  

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1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

0 Answers   IBM, Kirloskar,

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WHY IS THE EARTH FAULT CURRENT ALWAYS LESS THAN THE NORMAL CURRENT??

7 Answers   Reliance,

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which oil is used in transformer?

7 Answers  

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Whats the type of current and potential transformers?

3 Answers  

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cab we add capacitor bank with generator to improve power factor or not??????

1 Answers  

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what is timing for mccb 800A tripping?

1 Answers   L&T,

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While elctrical load on DG,capacitor banks kept off why so? If capacitor banks on is their any effect DG?

4 Answers   IL&FS Infrastructure Leasing Financial Services,

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Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both

0 Answers   Jindal,

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the circuit having same properties in either direction is known as.......

2 Answers  

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why dc is used in control circuit for mv & hv switchgear instead of ac

0 Answers  

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