why dc power can not be used in transformer?
Answer Posted / subba lakshmi
DC current should not be given to TFR bcoz in it frequency
is zero due to which the reactance which is given by
2*pi*f*l will be zero hence the entire voltage applied is
opposed only by the resistance fo the wire which is nearly
zero hence current produced will be high as v=I*R hence due
to which there are chances of melting wire.
Is This Answer Correct ? | 8 Yes | 3 No |
Post New Answer View All Answers
What is servo motor? what is its purpose?
How the PF control while running DG set with load
how is the testing of an REF relay? what are the test REF circuit having?
What are the types of class b amplifier?
what is model question rrb junior engineer electrical gr.II
while starting a liquid starter ,is there any volage drop on water/soda on tank.can we touch the tank on starting?
What is size 00, 01, 1 etc., in HRC fuse types?
What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?
Batteries. What is the difference between Lead and Nickel batteries ?
hi, i have 3x200KVA and 2 x 80KVA UPS with battery bank of 150AH 68Nos. and 100AH 204Nos., i need to install AC either ductable or PAC type, so can you help me to calculate heat load and capacity of the AC to install.
How to improve fuel cell in a distribution system?
Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?
How phase displacement change in the over current relay coils.
how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.
draw the restricted earth fault protection circuit install on power transformer and identify its parameters and draw C/C curve of it