👉Harmonic distortion is like electrical pollution which cause problems.
👉It is a higher multiple of primary frequency super imposed on the alternating current waveform.
👉A distorted harmonics of a 50Hz current wave may contain harmonics at 100Hz,120Hzetc.
👉The harmonic whose frequency is twice that of the fundamental frequency is called second order harmonics.
👉Harmonic distortion is the degree to which a waveform deviates from its pure sinusoidal waveform.
✏️CAUSE AND EFFECTS OF HARMONICS:
👉Harmonics power current electronic and voltage convertors, are motor computers, electronic lighting, created stators, welding, supply, etc.
👉Harmonics cause cable overheat and may by nonlinear variable loads speed uninterruptible like drives, power damage 👉It overheats transformers and creates tripping of insulation circuit breakers.
✏️HOW TO CONTROL HARMONICS:
👉Some popular methods to control harmonics are use of passive filters.isolation and harmonic reduction filters,and active solution.
👉In case of transformer overheating,special K-rated transformers are used.
👉Redistribution or relocation of harmonic-producing loads is an easier solution for many problems.
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