Answer / prashant

strictly earth resistance must be zero

Answer / shiva

good earthing less than 3 ohms

Answer / ilango

earth resistance value=0 to 10 to 100 to 1000 ohms

why there is a humming noise in transformer

6 Answers  

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Define active and passive network?

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why we not connect the 12 V batteries in parallel to get the more backup supply for an UPS ? wheter off line or on line UPS ?

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What is an 86-P or an 86-A trip

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generaly all power generating devices is expressed in KVA or MVA then why power ststion is expressed in MW

6 Answers  

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What is the battery voltage limit

3 Answers  

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If the circuit breaker will not close or it will trip, what will you do?

3 Answers  

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hey guys i recently saw a long transmission line in which a sort of balloons in red and white color were hanging at each section.do u have any idea why are they kept for?

3 Answers  

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how c-curve of mcb's actually looks alike?

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Why breakers not synchronized when the synchroscope is going in the anticlockwise direction?

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if i get a drop in my 1st year and the i clear my 2nd year and 3rd year all clear and i dont have any back logs so can i be able to sit in campus selection??

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what is feeder?

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