help with third harmonics
- Thread starter Kapitan
- Start date
Kapitan,
There can be third harmonic distortion of sine waveforms even in single phase transformers. It is caused by magnetic saturation of the iron core. Gets worse as the transformer power rating is approached.
The sinusoid essentially has its peaks flattened. If you sketch a sinusoid, then a smaller wave at three times the frequency and add them, you will see the effect.
It can be a harmful condition because of the additional heat dissipated in the transformer. A less harmful effect may be additional noise produced by motors when driven by distorted sinusoids.
There can be third harmonic distortion of sine waveforms even in single phase transformers. It is caused by magnetic saturation of the iron core. Gets worse as the transformer power rating is approached.
The sinusoid essentially has its peaks flattened. If you sketch a sinusoid, then a smaller wave at three times the frequency and add them, you will see the effect.
It can be a harmful condition because of the additional heat dissipated in the transformer. A less harmful effect may be additional noise produced by motors when driven by distorted sinusoids.
Last edited:
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