Tools for supplying premium quality power

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:269856

Baldwin, T L; Tison, K

The electric utility industry has done a good job of minimizing the long term outage, but for some industries, reliable power is not good enough. There is an increasing demand for premium quality power. The proliferation of sensitive electronic equipment at industrial and commercial sites has resulted in an increasing number of major power users who are sensitive to temporary voltage disturbances, momentary outages, and voltage fluctuations. An EPRI survey of distribution power quality reveals that the average site experiences several voltage sags per month. Many sensitive critical processes are impacted by these events resulting in significant production losses and demands for better quality power that is free of voltage disturbances, fluctuations and momentary interruptions. Not all voltage disturbances come from the electric power network. Problem loads can cause variations in the voltage. Examples include compressors, mining shovel and hoists, wood chippers, saw mills, paper mills, steel rolling mills, water pumping stations, petroleum pumps, welders, and induction furnaces. These loads can produce voltage fluctuations and voltage sags. Electric utilities are reallocating resources to better serve power quality sensitive customers. New technologies are emerging adding to the tools available. A commercial framework for power quality is needed to support the implementation of these technical solutions within today`s business environment.

• OSTI ID: 269856
• Report Number(s): CONF-951050--
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
CONTROL SYSTEMS
ELECTRIC UTILITIES
ELECTRICAL FAULTS
ELECTRONIC EQUIPMENT
FLUCTUATIONS
OUTAGES
POWER DISTRIBUTION SYSTEMS
POWER TRANSMISSION
RELIABILITY
VOLTAGE DROP