Description
The Public Utility District No. 1 of Clallam County is seeking bids for the purchase of one new, rebuilt, or reconditioned step-up transformer, 5MVA or larger, 12.47kV/29.94kV. The transformer should conform to the latest applicable IEEE, ANSI, and NEMA standards. The successful bidder will be required to provide a bid bond, certified check, or cashier's check in an amount equal to five percent of the bid. The contract will include provisions for payment, delivery, and warranty.
• The transformer should be designed for outdoor use and have a 60 Hertz frequency.
• The transformer should have a three-phase, oil-immersed design with a 55°C average winding temperature rise and an 80°C hot spot winding temperature rise.
• The transformer should be rated for elevation up to 3,300 feet.
• The transformer should have a high voltage of 24,940 Volts Wye and a low voltage of 12,470 Volts Wye.
• The transformer should have a high voltage BIL of 150 kV and a low voltage BIL of 110 kV.
• The transformer should have an impedance of 12,000 kV.
• The contractor should provide a detailed dimensional drawing and design specifications for the construction of the transformer.
• The contractor should provide a complete and detailed operation and maintenance manual, inspection manual, and test data for the transformer.