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7 types of power quality disturbances

How clean is your power?

Industrial and commercial operations increasingly rely on non-linear loads, high-current equipment, and lightning systems to meet their needs. However, this can lead to power instabilities that, while invisible at first, gradually impact the safety and reliability of equipment sharing the same power supply. These instabilities can cause equipment damage, reduce lifespan, trigger component failures, decrease efficiency, and drive up energy costs. In fact, 50% of power outages are directly linked to power quality (PQ) issues, and 80% of all PQ problems originate from within the facility.

There are seven key types of power disturbances: Harmonics, Reactive Power, Transients, Oscillations, Flicker, Voltage Variations, and Network Unbalance.