What are the types of TESTS in CIRCUIT BREAKERS based on Testing and commissioning?

2 Answers  

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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

1 Answers  

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Can we use Motor protection CB while we use the VFD for Speed control?? if not means please tell the reason!!!

1 Answers  

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in house wiring when two wires are same colour coding and there is no any connection one end how to find which wire is earthing wire

1 Answers  

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Can we connect two or more energy meters/Amp meters on one CT set(Three phase).

5 Answers   Parle, Watermark Engineering,

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why is used for starters for staring motors?

6 Answers   Amrapali, L&T,

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what is electricity.

6 Answers   HP, L&T,

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how to find under ground cable fault ??? if our cable size is 95*4 then what will load capacity with far mull

2 Answers   Imdad,

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Draw a SLD of HT distribution EB grid up to users Transformer?

0 Answers   HSL, VVL,

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what do you mean by switchgears?

5 Answers   Practical Viva Questions,

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IN 6.6KV 3 phase switch gear .i will give 6.6kv to R phase only to earth in during H.v testing (through H.v KIT).what happen remaining phases.how much voltage get remaining phases.why? explain.

1 Answers  

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How can we calculate cable size in Low voltage & high voltage

0 Answers   United Breweries UB,

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