Answer / sheikh

In case of cable testing there is no PD test. although cable at the time of manufacturing or
after manufacturing passing in test of voltage grade like a cable nominally use on 220V ang it,s permissible voltage grade may be 600 V. it means this cable cannot use over to 600voltage.

where to use CT and PT?

4 Answers   CEB, Reliance,

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what is the difference between ground, earth and neutral?????????....

1 Answers  

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derive the e.m.f equation of transformer

2 Answers  

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what is the difference b/w ground & virtual ground?

0 Answers   Accenture,

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what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?

0 Answers  

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Why two phase welding machine is used instead of three phase welding machine.

0 Answers   Merck,

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what is control supply rating of a machine

0 Answers  

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What is the role of ESP(Electro Static Precipitator)in steam power plants? Where it is located? How it works?

1 Answers  

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what is floating charger and boosting charger?

4 Answers  

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A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

0 Answers  

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what is difference between 5A and 100A CT constructional wise and operation?

1 Answers  

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what is surge impedence loading

2 Answers   NHPC,

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