The Naval Facilities Engineering Systems Command, Pacific is conducting market research to identify potential sources for a transformer protection relay with performance equal to the SEL-3555, for the Fiscal Year 2027 SIOP Project at Pearl Harbor Naval Shipyard in Hawaii. The required device must function as a real-time automation controller for substation automation, a communications gateway supporting multi-vendor interoperability, and provide programmable logic for control schemes. It must also enable data collection, monitoring, and secure system integration with cybersecurity features. Responses must be submitted electronically by 2:00 p.m. H.S.T. on 30 July 2026. No budget information is specified.