Monthly Archives: July 2005

Relay Upgrade for Southeastern U.S. Utility Improves Reliability

Posted on July 25, 2005

To improve the reliability of their distribution system, an investor-owned utility in the Southeastern U.S. turned to S&C to upgrade the existing electromechanical protection and control equipment on their 15-kV and 23-kV feeder breakers. New relay panels would be required. … Continue reading →

Posted in Power Systems Services

Maker of Lens Cleaning Solution Clearly Sees Advantages of PureWave UPS System

Posted on July 18, 2005

A maker of lens cleaning solution, located near Toronto, Ontario, has a strictly controlled manufacturing process which requires a clean room environment. Motor-driven blowers are used to maintain positive air pressure in the clean rooms. Their facilities were experiencing a … Continue reading →

Posted in Uninterruptible Power Tagged

Technical Paper: Economical Self-Powered Transformer Protection

Posted on July 5, 2005

Traditionally, substation transformer protection was provided by relayed circuit breakers or circuit-switchers, power fuses, or relayed-remote fault-interrupting schemes. Relayed protective schemes required an expensive substation control house and station batteries. Power fuses can only be applied where the continuous and … Continue reading →

Posted in Substation Tagged