Power Quality paper 1 Causes of voltage dips amp resulting problems By GJ Coetzee 0 OVERVIEW The smooth operation of industrial manufacturing and mining plants will be referred to as a plant are dependent on a steady power supply Dips in the supply voltage depressions in supply voltage of short duration can lead to unnecessary stoppage of plant processes unless adequate measures have been taken in the design of the electrical equipment The capital losses
Frequently asked questions Q Does the stepped square wave shape adversely affect the load in any way A No Although there is some harmonic content which is negligible under load the DPI is only supplying this wave shape during a dip or sag and is therefore only present for very short periods of time Heat build up and other possible side effects need not be considered and the type of loads generally present in control circuits will function normally Remember that it is not