EMC Filter

A harmonic filter is an electrical device used to reduce or eliminate harmonics in voltage or current signals. Harmonics are known as extra frequency signals or distortions at the fundamental frequency (fundamental frequency) of the power system and are usually caused by nonlinear loads in power systems. These filters are specifically designed to improve power quality.

An EMC filter or harmonic filter (noise filter) helps in the immunity of the system against electromagnetic signals and noise and sudden impulses in electrical input and output devices to produce a sinusoidal and noise-free output. There are different types of harmonic filters which are classified based on type, size, impedance, maximum DC resistance, capacitance and current capacity.

Function of Harmonic Filters:

• Harmonic Reduction: These filters use various components that purposefully help in the elimination of unnecessary frequencies and distortions in voltage and current signals.
• Improving Power Quality: By reducing harmonics, harmonic filters help improve power quality in the power grid, which can result in better equipment efficiency, reduced energy losses, and prevention of damage to electrical devices and equipment.

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