Protection of the Neutral Conductor
Overload detection shall be provided for the neutral conductor in a multi-phase circuit Where the cross-sectional area of the neutral conductor is less than that of the line conductors. The …
Power Electronics Converter Harmonics: Multipulse Methods for Clean Power
Power Electronics Converter Harmonics: Multipulse Methods for Clean Power Derek A. Paice Harmonics generating non-linear electrical equipment is here to stay. There will be more non-linear equipment to be installed …
Cable Rating Reduction Factor due to Harmonic Currents
The presence of harmonic current in a power system increases the current in the neutral conductor due to phase current imbalance (refer to Fig. 1b). To ascertain that the current-carrying …
Transformer K-factor Rating and Variable Speed Drives
In this article, I have discussed the difference between a conventional transformer and a K-factor rated transformer. In modern day plants, Variable Speed Drives (VSD) are widely used. The project …
Phase Shifting Transformers to Cancel Harmonics
When there are several non-linear loads of equal ratings in a power systems, the use of phase shifting transformers could help cancel harmonics. After harmonic filters, phase shifting transformers are …