Answer / asif khan

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If there is volagte between earth and neutral, what should be the reason ? and solution * What should be allowable limit in case, if the voltage between earth and neutral exist ? / OR what is limit for safe voltage between earth and neutral?

3 Answers  

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what is the purpose for open delta connection in potential transformer

2 Answers  

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Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT

1 Answers   GE,

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1)what is hypo test. 2) which cable need to hypo test.3) when hypo test can be done before or after glanding.4) what is the purpose of hypo test.

5 Answers  

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why ohms law does not obey semi-conducters?

2 Answers  

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Saving in copper achieved by converting a 2 winding transformer in to an auto transformer is determined by A voltage transformation ratio B load on secondary C quality of core material D size of transformer core

0 Answers  

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why capacitor is placed in fan

4 Answers  

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while doing the excitation current test on power transformer what is the value of voltage to be applied? Nomonal rated voltage or 10% of rated voltage? Is it necessary to apply on high voltage side?

1 Answers   ACC,

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If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021

0 Answers  

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in india,we use 230V,50 Hz,whereas many other countries use 110V,60Hz.what r d advs and disadvantages of each of them?

11 Answers  

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what is the difference between relay and a contactor.

5 Answers   Siemens,

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what are the main parts of DG? explian thier functions?

8 Answers   Apollo Power, Tata DoCoMo, Tyco, Vizag Steel,

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