aarthivg
aarthivg
Branch Unspecified
28 Mar 2012

No load losses of the transformer

How the no load losses of the transformer can be minimized ?
6 years ago
If you use superconducting coils, the efficiency will be of the order of 99.85%.
Harshad Italiya

Harshad Italiya

Electronics and Communication
6 years ago
bioramani
If you use superconducting coils, the efficiency will be of the order of 99.85%.
And remaining 0.15% are because of the core we are using in transformer? I am not sure.
Shreyas Sule

Shreyas Sule

Aeronautical
6 years ago
The no load losses are due to:
1. Hysteresis- In core laminations
2. Eddy current-In core laminations
3. Stray Eddy current- In core clamps, bolts and other components
4. Dielectric losses.
5. I2R losses-Due to no load current
Hysteresis losses and eddy current losses are the primary contributers (about 99%) of the no load losses.
Eddy current losses are reduced by using thinner and better quality of core steel and designing the core effeciently. Hysteresis losses are caused by molecules in the core laminations which resist getting magnetized and demagnetized by the alternating magnetic field. This resistance by molecules causes friction and heat is generated. Hystersis losses can be reduced by selection of proper size and type of core material.

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