WADDELL_KW1A_TRANSFORMER_REPAIR_SCOPE_OF_WORK_.pdf

This is a Scope of Work document for the Central Arizona Water Conservation District (CAWCD) related to the Waddell Pumping Plant KW1A Transformer Repair project in Arizona. The project involves comprehensive repair and re-gasket work on a power transformer that has sustained multiple oil leaks from primary bushings (H1, H2, H3), secondary bushings (X1, X2, X3), Buchholz Relay, and other connection points. The scope requires the contractor to clean and prepare all sealing surfaces including faces, grooves, flanges, and glands, and replace all sealing materials with new gaskets, o-rings, packing, bolts, nuts, and washers at the main tank, oil preservation system, radiators, and primary bushing gasketed flanges. The work encompasses complete removal, processing, and vacuum re-filling of insulating mineral oil from the main tank, radiators, and conservator, with SF6 gas isolation and refill to be performed by others. All bushings must be removed, regasketed, and reinstalled, and the conservator bladder requires replacement along with all associated gaskets, seals, vents, and drains.

The project addresses critical equipment reliability, environmental compliance, and personnel safety concerns stemming from the transformer's oil leaks. This constitutes a complete transformer re-gasket project with comprehensive scope including all main tank, oil preservation system, radiator connections, and primary CT well connections. The specific pricing terms, bid due dates, site visit information, and award timeline are not detailed in this Scope of Work document, as these elements are typically contained in the formal solicitation notice and bid documents.