How LT megger works ?

0 Answers  

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Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

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how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?

0 Answers  

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why earth hole size is biggest in plug point?

22 Answers   Al Qabas, HCL, RRB,

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is there any lightning by passer is arranged in ship like buildings?

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in railways why we use the power in 10,20 30kv,why not in the multiple of 11kv

2 Answers  

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What is step signal?

0 Answers  

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Which Class insulation is prefered for the sandwich Busducts ? Why?

0 Answers  

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Unit of Magnetic Flux Density a) Tesla b) weber c) Hendry d) Farad

3 Answers   Ecil,

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what is tower earthing and what for it is required

1 Answers  

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what is differnce between oil transformer & dry type transformer ???????????

2 Answers  

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length of 4 core cable 95mm from substation LV VFD panel to Motor at field approximately 150 meter. Motor stop and power has been isolated from LV MCC ( Substation )to disconnect Motor for services. After Motor completed service propose to reinstall and reconnect Motor Cable, found earth cable sparkling during touching at metal / motor body. Inspect by clamp meter found earth cable have current flow AC 1-2amps and all earth cable at MCC LV also have current flow as same value. why it is happen?

2 Answers  

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