In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?

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if installing the transformer why put the sprit the stone ?

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why bulbs when connected in series glow dim

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What is the principal of motor?

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What are the functions of different Parts of Alternator?

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Why tripping not occur when the transmission lines (11KV & above) breaks? Doesn't we provide earthfault protection for it?

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From, which load current range ( upper - lower limit current)can Air circuit breaker used for in electrical circuit.

4 Answers   ABC,

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if a number of plc s are there then how many modbus to be used

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Define settling time.

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at which places we use 6.6KV Transformers and Motors

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we have 3*1 MW generator one NGR is common for all it will be selected during paralle our problem is two generator ca be paralled but when slecting third one we need to close NGR selection on third one other wise voltage not matching why?

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Is voltage & potential transformer are the same? Are they used for same application ?

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