Role of Utility, Customer and Manufacturer Cooperation for Solution of Pq Problems

摘要

Power quality is a growing concern effecting utility supply continuity, sensitive customer productivity and manufacturer equipment reliability. Power quality problems such as voltage sags, swells, distortions and transient surges caused by short circuit faults or motor starting, switching reactive loads or phase to ground faults, VSD or arcing loads and inductive or capacity load switching may result in process shutdown or contactor dropout, undervoltage tripping and speed drift or ASD tripping. This work describes result of a power quality study concluding urgent need for enhancing cooperation between utilities, customers and manufactures to improve power quality problems. Individual responsibilities of utilities personnel, sensitive equipment customers and power equipment manufacturers in light of available power conditioning technology, regarding deployment of equipment and improvement of design strategies have been discussed for precious end users.