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G&W’s Lazer automation system is a pre-engineered solution package that works in conjunction with power distribution switchgear to perform automatic switching operations on overhead and underground loop or radial distribution circuits. G&W utilizes over 100 years of industry experience to match the proper switchgear with the proper control for the application. For the Lazer solution, G&W utilizes Schweitzer controls, one of the industry’s most popular suppliers of quality protective relays. The Lazer is a protection and control package that features one or more microprocessor-based protective relays, equipped with distributed capabilities and peer-to-peer communication to make intelligent operating decisions and to monitor field conditions. It focuses on critical load installations to maximize service reliability.
G&W’s Lazer automation system specifically addresses fault detection, isolation and restoration (FDIR) requirements. It continuously monitors the loop or radial circuit. When it senses an electrical overload or short-circuit fault within its protection zone, it will issue a command to the responsible switchgear to trip open within a pre-determined time delay based on the severity of the fault. Communication with other upstream and downstream Lazer devices functions continually to determine what other actions are required to re-configure the distribution circuits through a sequence of “Open” or “Close” operations of other switchgear to automatically restore power to customers connected to the unfaulted lines.
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