why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?
Answer / swapnil hete
Motor is the dynamic device so, frictions losses& windage losses is include in the total losses.
on the other hand trnasformer is the static device hence there is no frictions losses & windage losses
| Is This Answer Correct ? | 11 Yes | 1 No |
If the capacitor bank is installed in switchyard say 132/22kv then on LT side say 22kv/0.433kv is it necessary to install capacitor bank for maintaining power factor. if pf is maintained on HT side then will that be maintained on LT side as well.if not then how&why??????/ please explain...........
why PD testing for power cables
1 Answers Bhushan Power Steel, CSE, Datre Corporation,
what are the industrail measures to overcome ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system? plz reply
Now I inject 1kv DC supply r&y=??? R&Y=?? Y&B=?? B&R=???? RYB&N=??? RYBN&E=????? Minimum value====???????
what is differentila pilot supervision in the incomer control panel in the power station?
single phase voltage 230 and Three phase voltage 450 why 690 voltage
What is the diffrence (Technical & Construction ) between CBCT & Normal CT?
If a Power Transformer Fails and the transformer manufacturer suggest that "Do all electrical test on the transformer?". What are the test to be conducted in this condition?
Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.
How to measure 20 hp motor resitance
The rating of Transformer are 11KV, 22KV, 33KV instead of 10KV, 20KV & 30KV?
3,12,24,33,_ ,75,150 Find the missed number in this sequence
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)