When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
2228how we identify between current transformer and potential transformer without having it name plate?
5 13033what was the rate of duty i have to pay if i want to import 1) lubricants(engine oil, etc) 2) grease 3) v-belts(rubber belts used in machines, cars, etc)
2109Post New TATA Interview Questions
what rectifiers is and what are the types of rectifiers?
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