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Generator Protection Products

SEL has set the standard in generator protection. Apply SEL generator protection products and avoid expensive equipment damage and failure while maintaining system performance and increasing availability.

SEL-700G Generator Protection Relay

The SEL-700G Relay is the right solution for utility and industrial generator protection, with an autosynchronizer, flexible I/O, and advanced communications. Apply the SEL-700G Relay for comprehensive primary and backup generator protection.

SEL-300G Generator Relay

In order to make technology available for the first time that complies with IEEE turbine protection standards, SEL has applied its expertise in the production of microprocessor-based relays to create the SEL-300G, a generator relay that includes several unique features designed for unsurpassed protection, monitoring, and control of electrical generators.

SEL-547 Distributed Generator Interconnection Relay

Apply the flexible SEL-547 at the transfer switch site (interconnection point between the utility and the customer) and at each individual generator site. When the SEL-547 at the transfer switch site detects utility supply problems, it separates the customer system from the utility supply.