How to Resolve Power Quality Issues?
Each power quality issue needs to be resolved individually. Typical solutions include installation of relevant protective devices (e.g. uninterruptible power supplies, surge suppressors, and isolating transformers), reinstallation or modification of equipment. Below are a few types of frequently used equipment for resolving power quality issues:
Uninterruptible Power Supply (UPS)
UPS is a comprehensive protective device which provides an alternative power source for the connected equipment while mitigating power interruptions or fluctuations. Among all types of UPS, the true on-line UPS systems are the most effective solutions to date.

Harmonic Filter
Harmonic filters not only effectively suppress harmonics, but also help cut power demand by increasing the power factor. There are two types of harmonic filters, namely the passive filters and the active filters.
Filter Type | Auxiliary Power | Application |
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Passive Filter | Not Required | Suitable for equipment that generates constant harmonics |
Active Filter | Required | Suitable for equipment with dynamic harmonic distortions |