Answer / k.prakashchandra

Fill the earth pit with dry saw dust with bottom resting on
an insulated block

Answer / sanjay d. dabli

Look this is tricky question because earth has resistance from 0 ohms to 10 ohms.This means if we make earth pit we get resistance between 0 to 10 ohms. We can get 1000 ohms resistance between two earth pit by providing 1000 ohm resistance between them.

what is the basic principle of the alternator ????

2 Answers  

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i want to estabilish an loss energy storage system,such that it can store electricity lost during the transmission of electricity in conductor,so that this system stores energy lost during transmission and supply it to street lights during night

2 Answers  

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What is meant by sag?

0 Answers  

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what is the difference between potential transformer and capacitive voltage transformer?

1 Answers  

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give single line diagram of D.O.L and star -Delta starter ?

8 Answers   ABS, Al-Shuaah, Alkali Metals, Cabin Crew, Cognizant, CRI, Gwalior Distilleries, Hotels, Logicon Engineers, Max India, Nicomet, Radisson Blu, RK Company, Siemens, SLCM, Solar, Steel Strips Wheels, Sugar Factory, TATA, TCS,

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Why double earthing is required ?

1 Answers  

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oltc of a transformer, how it works? and what are the equipment consist of describe briefly?

0 Answers  

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is it possible to start a motor in felid connected to a remote mcc

0 Answers   BIET,

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along with technical test papers

0 Answers   Vee Technologies,

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what is the current carrying capacity of 725 va generator

2 Answers  

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My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

0 Answers   Premier,

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how you can select circuit breaker for 2000kva transformer?

9 Answers   TATA,

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