Regulation and Efficiency :
Important points:-
1. Good regulation means low value of %regulation
2.Good transformer means high value of % efficiency
3. Rotational loss is zero % in a transformer
4.Transformer efficiency is very high. Even it may be 99.99%.
5.Iron loss or core loss ic constant loss
6.Copper loss is variable loss.
7. copper loss is proportional to its square of the load.
8. Condition of maximum efficiency is- Core loss= Copper loss at full load.
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| What is the condition of parameters when primary referred to secondary and vice versa |
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| Equivalent circuit and phasor diagram of referred circuit |
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| Referred circuit |
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| Voltage regulation |
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| Percentage and per unit impedance |
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| Condition of zero and maximum voltage regulation and Loss of transformer |
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| Tr Losss |
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| Efficiency of transformer |
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| Condition for maximum efficiency |
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