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Why is the frequency not changed during transformation of electrical energy in a transformer?
What are the special cables required for explosion proof wiring?
in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply
what things to be considered when designing UPS
why current flow to the opposite direction of flow of electrons???????????
how to select electronic timer(Star-Delta) setting for diff. rating motors
what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)
what is mean by dual digital protection in the relay field?
why dimmerstate always connected in star connection? what will happen if it connected in delta?
What do you mean by reach and reach the point of the relay?
How do you compute voltage drop and cable size over distance?
why do we carry out winding resistance test?
draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.
Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?
is it possible to say motor horsepower number without seeing name plate(when name plate damaged)
