Which of the following are the important limitations of rod gap surge arresters? 1. They are not capable of selling off power frequency follow up current. 2. After a discharge, the rods are destroyed completely. 3. Performance is affected by climatic conditions. Use the following codes for selecting the correct answer. Codes: (a)1, 2 and 3 (b)1 and 2 (c)2 and 3 (d)1 and 3

1 Answers  

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which %age if losses increases when frequency is increased to 25%

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How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.

0 Answers   El Seif,

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the typical output of a solar cell is........

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block diagram of 2 ups system connected in parallel mode?

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what is the formula to calculate the fault level current for any substation?

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can any one suggest paper presentation topies for electrical engg?

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Is voltage & potential transformer are the same? Are they used for same application ?

11 Answers  

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