last week we did the REF relay test by closing single pole
(R phase) of CB and apply 380V at the primary of delta
transformer. we get 33A at the primary of the R phase star
end. but we get 380A at both R an B in delta side. how and why?
derive the formula of amp hours is calculated for 12v battery.where no. of plates is given
what is oti and wti
For Synchronisation of DG Sets Sometimes we people use NIC (Neutral Isolation Contactor) Instead of 4-pole ACB or any switchgerar..Please guide me why is it so????
4 Answers Piramal Glass Limited,
why the excitation is necessary to produce the reactive power
Hello, I am just preparing my self for a university interview and struck on the 11kv ring main unit system network. I just know that ring main unit has total three breakers, fuses and use to supply a power to any load/ building without any interrupt. But i am not be able to visualize the connections, either Ring main unit getting power from two different power sources? or there is always one feeder in complete ring circuit??? I would be highly thanks full of you help me.
In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?
if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.
what is the working principle/operation/theory of 3-phase rectifier power transformer used in cold rolling mills.
Define corner frequency?
in thermal power plants by opening the turbine governor valve increase the generator load. how
Explain marx circuit.
what is the function of garing capacitir in SF6 circuit braker?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)