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For weather condition protection we will use various thing for indoor machines there is no need but for outdoor ie:-
for transformer we use LA
For motor & Generator we use Canopy
In summer time we use cooling arrangement for substation for CT & PT units.

why high voltage is reqiured or L.T. panels? what type of tests should be taken for electrical panels?

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when voltage increases current decreases & vice versa why it is so?

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why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

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what is name of transformer oil ?

58 Answers   L&T, MPSEB, OPTCL, Practical Viva Questions, Servo, TATA, XLPE, ZGL,

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How to configure the drives in PLC, through Profibus commnication. And to how to address it?

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Why earthing is necessary for any equipment?

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Which of the following are the important limitations of rod gap surge arresters? 1. They are not capable of selling off power frequency follow up current. 2. After a discharge, the rods are destroyed completely. 3. Performance is affected by climatic conditions. Use the following codes for selecting the correct answer. Codes: (a)1, 2 and 3 (b)1 and 2 (c)2 and 3 (d)1 and 3

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what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????

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For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

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what is the differencce inn series and cascade connection??

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Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

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What is the high series capacitance winding on high voltage power transformer ?

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