Answer / srajan

The insulation of transformer winding is tested with megger..it is tested as insulation of lv to earth , hv to earth and hv to lv..it is commonly known as IR testing..its value will be different according to weather..changes drastically in monsoon..

In any Industry, Which voltage level either 3.3kV or 6.6KV to be chosen? Then I would like to know ,Is there any cost consideration or Rating of motor?

5 Answers  

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Why are transmission lines multiples of 11? Is it because of some historic reason ? Or is there a scientific base to it?

5 Answers  

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1. What are the tests to be carried out for CBCT? 2. can measure the secondary resistances? 3. with respect to secondary maximum how much voltage can be applied for IR test.

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BRIEF ME CHECKING PRCEDURE OF BATTERY 12V 26AH

1 Answers   DRJ ARDE,

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what is 3rd Harmonics? how it is generated in alternator

2 Answers   Aditya Birla,

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What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

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What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?

0 Answers  

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what is the working principle of energy saver control panel. please give the complete calculation & theory.

0 Answers   Lupin,

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what is the d/f b/w dol & star delta starter.

2 Answers  

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Can you explain about TEE protection scheme?

0 Answers   Voltech,

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what is voltage ?

7 Answers  

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how i run d.c. moter with solar panel without use of battery?

1 Answers  

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