Causes

Electrical harmonics causes and cures

Electrical harmonics causes and cures
  1. What are the causes of electrical harmonics?
  2. What are some of the main causes of harmonics?
  3. What are the effects of harmonics?

What are the causes of electrical harmonics?

Harmonics are the result of nonlinear loads that convert AC line voltage to DC. Harmonics flow into the electrical system because of nonlinear electronic switching devices, such as variable frequency drives (VFDs), computer power supplies and energy-efficient lighting.

What are some of the main causes of harmonics?

Nonlinear loads are the primary causes of harmonics in an electrical system. Non-linear loads draw short bursts of current, which creates a situation where current is not proportional to the voltage. These loads create harmonic distortion that can have adverse effects on your equipment.

What are the effects of harmonics?

Simply stated, there are two basic concerns: Current harmonics cause unwanted current and overheating. Voltage harmonics cause misoperation of equipment.

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