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The document discusses harmonics in three phase transformers. Harmonics are multiples of the fundamental frequency that distort the voltage and current waveforms, increasing losses and insulation stress. In three phase transformers, the non-sinusoidal magnetizing currents produce sinusoidal flux, but contain necessary third and higher harmonics. Delta and star connections handle harmonics differently: delta connections cancel third harmonic currents in transmission lines, while in star connections the third

Author

SaurabhThakur

Language

EN