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Transformer Derating Due to Non-Linear Loads

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EddyWirbelstrom

Electrical
Feb 17, 2002
214
Can anyone provide examples - in addition to those shown in C57.110 - of transformer derating calculations based on measured harmonic load current using the IEEE C57.110 methodology where the known data is :-

- Xfm rated sinusoidal current.
- Xfm Load Loss ( P LL ) in watts.
- d.c. resistance of primary phase winding and secondary phase winding.
- Magnitudes of individual load harmonic currents ( in amps ) through the transformer.

 
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