Answer / ravi

Physical observation:
Power Cable consist group of high dia bundles.but in signal
cable consist low dia copper (in mm or microns)bundles.

If rotor works in clock wise what happens

0 Answers  

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for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that .explain

4 Answers   WGPSN,

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which seven wonders are selected in india in 2008-2009

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how to measure genset CT coil range?

1 Answers  

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what is the current generated in a 230v megger?

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what should be distance between phase to phase in 415v system?

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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.

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tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

10 Answers   ABB,

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Electrical Design specifications

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What is vcb?

3 Answers  

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I have 1500KVA transformer ,How much Maximum KW Load is allowed?

15 Answers   GKC Projects Limited GKCPL,

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What is meant by turbo alternators?

0 Answers  

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