MNA Spillway Power & Controls Infrastructure Upgrades

The U.S. Army Corps of Engineers, Walla Walla District, is seeking information from responsible sources who can provide a solution that is fully and seamlessly interoperable with the existing Schweitzer Engineering Laboratories (SEL) equipment and control systems infrastructure at McNary Lock and Dam. The project involves replacing critical substation switchgear and installing a comprehensive feeder protection and relaying system. Interested parties must provide a statement of capability with clear and convincing evidence that their proposed alternative components can meet the comprehensive functionality, programming versatility, and robust physical requirements of the specified SEL equipment. • The project requires replacing critical substation switchgear (DS1 and DS2) that services the spillway loads. • The installation of a comprehensive feeder protection and relaying system is necessary to safely enable and integrate the multitude of functions required for spillway operation. • The Government intends to specify the use of Schweitzer Engineering Laboratories (SEL) Protection Relays, Motor Management Relays, Annunciator Panels, and Human Machine Interfaces (HMIs) due to the need for system standardization, operator familiarity, and proven reliability.