HomeIndustry SectorsAsset MaintenanceCommon PQ issues: Voltage dips and swells

Common PQ issues: Voltage dips and swells

Voltage dips and swells are two of the most common power quality events; however, voltage dips and swells cannot be prevented on the power system.

As impedances change during the course of a day, the voltage will momentarily change as well.

The goal of power quality is to limit the number of dips and swells as well as the magnitude of these events such that they do not cause equipment malfunction or failure.

The malfunction or failure of this equipment can cause large financial losses to various manufacturers.

This paper will define the various types of voltage dips and swells that occur and the effect they have on various types of equipment.

It also describes methodologies to measure and locate these events that cause equipment malfunction and failures

Megger designs and manufactures portable electrical test equipment. Megger products help you install, improve efficiency, reduce cost and extend the life of your or your customers’ electrical assets. Established in the late 1800s, the company has been designing and making test and measurement instruments that perform electrical measurements for preventative maintenance, troubleshooting and commissioning for decades. Megger products have supported customers all over the world to improve their facilities’ efficiency, reduce costs, extend the life of apparatus and through trending and analysis, anticipate equipment failure and future performance. It now has local offices in many locations with technical support teams and distributors all over the world. Manufacturing plants are located in Germany, Sweden, the UK, and USA.