what is anti-pumping relay and the significance of it in a switcgear cb control system?
hello everybody. please tell me the function of transformer bushing,s. i heared somewhere that it saved transformer winding from sky electricity. please tell me if that is right then how it work,s. Thank,s.
why in the three pin plug all 3 pins are cutted ?
What_is_mean_by_negative_dc_voltage? why we use -48v except +48v in DC power supply systems.
what are the protection relays for trasformer
Buchholz relay is used ………. a) protection T/F b) oil T/F c) Air core T/F
which motors are used in electric traction?
how to select the rating of neutral ct with reference to transformer secondary current(in power transformer,stepdown tansformer,for example2000kva,11kv/415volt
Why is the generator rating always in kVA and motor rating in kW?
What is over fluxing in transformer?
If I need to purchase a step-down transformer (from three phase 33kV 50Hz to 400/230V), what additional information do I need from the main supply power line?
how to find out three phase motr kw with out name plate..