Hayward Area Recreation And Park District Opengov #27-005

Repair and return the City of Hayward’s West Substation transformer to service

The City of Hayward is seeking a qualified contractor to repair and return its West Substation transformer to service at the Water Resource Recovery Facility. - Government buyer: City of Hayward, Public Works Department; buyer contact identified as Kevin Kaveh. - OEM: The existing transformer is Square D / Schneider Electric, serial number 20261134-011-01, S.O. PC20374-001. - Products and materials requested: - New copper windings and insulation for one transformer; quantities and part numbers are not specified. - Approximately 466 gallons of Envirotemp FR3 natural ester dielectric fluid. - Durable light-gray exterior finish, ANSI 70 or City-approved equivalent. - Equipment specifications: 1,500/1,680/1,932 kVA, three-phase, 60 Hz, KNAN/KNAF; 12,000 V primary to 480Y/277 V secondary; 5.67% impedance. The repair must restore the specified ratings. - Services: One complete transformer repair and return-to-service effort, including removal, transportation, repair, delivery, reinstallation, reconnection, testing, and startup. Inspect and test existing accessories; obtain City authorization before replacing defective components. - Notable requirements: Provide work, outage, transportation, repair, quality-control, safety, testing, and schedule plans; transit insurance and rigging/crane support; applicable electrical, fluid, functional, and operational test reports; fluid certification and repair/startup documentation; a staff walkthrough and training; and a minimum one-year parts and workmanship warranty. Dissolved gas testing is required 30 days after the transformer returns to service. Applicable work must comply with relevant IEEE, NETA, NFPA 70, and California Electrical Code requirements. A California C-10 Electrical Contractor license is required for applicable field electrical work, and bidders must show at least five years of comparable experience with references. - Completion timeframe: Within 20 weeks after issuance of an agreement or purchase order; no specific start or end dates or option periods are stated.

Description

The City of Hayward is seeking a qualified contractor to completely repair the existing West Substation transformer at its Water Resource Recovery Facility and return it to service. The work includes replacing the windings and insulation, supplying and testing approximately 466 gallons of Envirotemp FR3 fluid, repainting the transformer, and coordinating its removal, transport, reinstallation, testing, and startup. The contractor must provide work plans, test reports, repair documentation, and a minimum one-year warranty, and complete the work within 20 weeks of issuance of an agreement or purchase order. Responses must be submitted electronically through OpenGov by October 28, 2026.

View original listing