Answer / k.prakashchandra

1) to check the growth of vegetation 2) to reduce touch and
step voltages 3) to offer an anti-skid surface

Answer / pallab phukon

if during rainy season ,water may form any conducting path
causing short circuit,so to prevent this stones is used.

Answer / ramandeep

There are many points in switchyard which are earthed,so to provide low resistance path,we should have to increase moisture in soil and when there is raining water easily absorbed by earth or soil which increases moisture and provide low resistance path by which fault current easily transfer to ground and the stones which are used at switchyard work as a insulation b/w wet soil and living body or human.

during parallel operation of two ac generator which condition must match before taking both parallel i.e speed /voltage rating /kva/exciation

2 Answers  

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what difference between tapping -15% to +5 % and -5% to +15% tap. & how can define HV turns on maximun & minimum tap of power transformer.

2 Answers  

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can we run AC & DC cables in same tray

1 Answers   Aurobindo,

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a wire in which bulb is connected there is two terminal when one terminal is connected to phase than why the value of current shock in nutral terminal is max. or large??

4 Answers  

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1. what is the power factor and whatis his losses 2. what is the working procedure of 51RNB AND 87 relay

3 Answers   ABB,

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What is the function of under voltage release ?

0 Answers  

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can we install LT panel & HT panel in one room?

1 Answers  

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tate and explain super position theorem

2 Answers  

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What do you mean by isolators and circuit breakers?

6 Answers   Bhushan Power Steel,

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is it necessarry to charge the battery of ups always??

3 Answers  

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what is a,b,c,d checks diesel generator?

1 Answers   AFMC,

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which type of breaker sould be used for different level of voltage ? (i.e at 11 Kv, 33 Kv, 66 Kv....

8 Answers  

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