Sources Sought for SEL-587Z

The Naval Facilities Engineering Systems Command, Pacific (NAVFAC Pacific) is conducting a market survey to determine if other potential sources of supply can provide a transformer protection relay that has equal performance requirements as the SEL-587Z, manufactured by Schweitzer Engineering Laboratories (SEL). The required characteristics include high-impedance differential relay with capabilities such as bus differential protection, ground fault protection, bus monitoring, reporting and monitoring, and communications and integration. The notification is for market research purposes only, and respondents are asked to submit detailed technical data for the Government to conduct a comprehensive evaluation of their manufactured product. • The product must provide high-impedance differential protection to protect medium- and low-voltage switchgear buses. • The product must provide sensitive bus ground fault protection using high-impedance differential principles. • The product must continuously monitor differential zone current, relay operating status, and current transformer circuit integrity. • The product must provide Sequential Events Recorder (SER), relay targets, alarms, and event reporting. • The product must support integration with station automation and supervisory control systems through industry-standard communications protocols.