Answer / pillay

Most importantly the insulation and HV holding test is done on
all the installations.
on the tx former;winding insulation test,
ratio test, vector group test,impedence test, oil dielectric and
other test,
bucholtz relay test, all protective equipments operation test,the
switchgears insulation and conductivity tests along with pressure
tests on cables also . all tests have to meet the local
requirements or as relevant BS.

what's the difference between ATS and AMF...??pls answer me in detail with its working principle and construction also..

3 Answers  

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nwhat are the main Components of servo motor?

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If the capacity of water Tank is 50000 Liters situated at 20 meters height from ground level,What would be the size of pipe and how much USGPH water will be supplied and what will be the motor or pump rating used for this work?Illustrate by showing formula?

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why transformer does not obey ohm law?

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how to calculate the over current rating of 3phase motor

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what is power factor?

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When star connection of motor is use?

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when we are going to higher voltage level in substations why we are using Sf6 circuit breakers instead of Vacuum circuit breakers.

3 Answers  

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