Interested to Buy Any Domain ? << Click Here >> for more details...
Can any one advised me how we can measure the losses in a
11kV/415v power transformer? We have no access to the
incoming mains into the primary of the transformer.
Can one derive something useful by measuring temperature
rise in the transformer?
- 1 Answers
- 3328 Views
- Dexdyne, I also Faced
- E-Mail Answers
Answer Posted / rk
losses in transformer are 1) core loss2) copper loss
copper loss is proportional to current . the resistance of the copper changes with temperature. approximately it is 1.2 times at 85 degree celcius as compared to 40 degree ambient.so
total power consumed by the transformer during no load conditon can be read from the wattmeter connected in the primarry. this will give the core loss which varies with the loading of transformer insignificatly lets say 1000W.
now if transformer is distribution type or generation type.
maximum efficiency is when core loss = copper loss
so total loss at 50% loading is 2000w
copper loss at 100% load will be approx 4*1.2*1000=4800w( 4 due to doubling of current , copper resistance almost increases by 20% from 40 to 85 degree celsius rise
so total loss at 100% load = 1000+4800w=5800w
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
can u please tell me how to calculate the concrete quantity for a under reamed pile? r=300mm,depth=3m for a cylinder and for bulb l=.750mm,width=.525
how to differentiate between "ALL fuel lost" and "All Fuel Lost" in Boiler MFT condition?
what is restricted earth fault explain in details
We have Demin Closed cooling water system with expansion tank for cooling oil system. Expansion tank having N2 bladder. Whenever N2 bladder bursts out, Closed cooling water circuit pressure drops and make-up happening, eventhough there is no leaks. And how Circuit pressure drops?
why do you consider yourself a suitable candidate for this position
What is surging in a centrifugal compressor ? How it occur's ? How is antisurging done ?
im try to calculating seawater flow required for SW-FGD system. I need a guide, equation or method to do it, can some one help me! Thanks very much
why is the in steam turbine axial displacement of active side thrust pad is positive and non active side thrust pad is negative.
How to calculate boiler capacity? I have 1 Autoclave, Which has to use for AAC block. Dimension for this Autoclave is - 13 Meter Length & 2.2 Meter Diameter.
Which will have more strain energy 1.Spring 2.Circular disc 3.Solid square plate.
What is difference between secondary Air & Tertiary Air and Their use.?
LAPT working in alternator / generator
what does mean by kva rating
explain how the third harmonic content of the magnetising current affects transformer design
operation
