A. increased core losses
B. increased I2R losses
C. magnetic interference with communication circuits
D. all of the above
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A. increased core losses
B. increased I2R losses
C. magnetic interference with communication circuits
D. all of the above
This Answer Is B
Harmonics in transformers can result in a range of issues, including increased core and I2R losses, magnetic interference with communication circuits, lesser efficiency, reduced capacity, reduced power factor, transformer overload, and overheating of circuits.
Non-linear loads can cause a substantial increase in losses in conventional or K-rated delta-wye distribution transformers. Harmonic-mitigating (or zigzag) transformers (HMTs) are often used to reduce the presence of harmonic currents in an electrical system.
Harmonics are a distortion in the waveform of the voltage and current and are integral multiples of some reference waves. They can also cause voltage distortion, which increases losses due to hysteresis and eddy currents in the transformer core.