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-587Z, manufactured by Schweitzer Engineering Laboratories. The relay must provide high-impedance differential protection for bus and ground faults, bus monitoring, event reporting, and communications integration. Performance of services is at Joint Base Pearl Harbor-Hickam, Hawaii, under Fiscal Year 2027 SIOP Project P-8026. Responses must be submitted via email by 2:00 p.m. H.S.T. on 30 July 2026. No budget amount is specified.