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-387L, required for the Fiscal Year 2027 SIOP Project P-8026 at Joint Base Pearl Harbor-Hickam, Hawaii. The relay must provide line differential protection, backup protection, line monitoring, reporting capabilities, and front-panel control switches. Responses with detailed technical data must be submitted electronically by 2:00 p.m. H.S.T. on 30 July 2026. This is not a solicitation or request for proposals, but a market survey to assess alternative sources. No budget amount is specified.