Three Phase Padmount Transformers

The City of Farmington is requesting bids for 3 Phase padmount transformers with various kVA ratings, including 75KVA3PH, 150KVA3PH, 500KVA3PH, and 750KVA3PH. The bid must include the manufacturer's name, product number or description, and delivery lead time. The equipment must meet or exceed the City's written specifications and be manufactured within the United States. The contract will be awarded to the lowest responsible, responsive Bidder meeting specifications and terms and conditions. Some key points to note: • The City reserves the right to reject any or all bids and to waive technicalities. • Bidders may submit more than one bid that meets or exceeds the specifications. • The City will pay for any taxes due on the contract and will pay any increase in applicable taxes which become effective after the date the contract is entered into. • The successful Bidder may not assign their rights and duties under an award without the written consent of the City's Central Purchasing Office. • The City reserves the right to demand bond or penalty to guarantee delivery by the date indicated. Some of the required specifications for the transformers include: • High- and low-voltage ratings and kVA sizes as specified in Table I. • Minimum BIL rating of 95kV. • Transformers shall be of triplex or five-legged core design and connected wye-wye with primary and secondary neutrals internally connected and brought out to a neutral bushing in the secondary compartment. • High-Voltage Taps: Two (2) 2-1/2% above and below high-voltage taps shall be provided. • The transformer design shall allow field replacement of high-voltage bushing wells, bushing inserts, and low-voltage bushings by means of common hand tools and oil handling equipment, without totally untanking the transformer. • Approved bushing inserts include Elastimold Cat. #1601A4 and RTE (Eaton Cooper Power) Cat. #LBI215. • The transformer shall be of sealed tank construction, so designed that the interior is sealed from the atmosphere and the gas plus oil volume remains constant. • The tank shall be of sufficient strength to withstand a pressure of 7 psi gauge, without permanent distortion. • The transformer nameplate shall indicate "10kV under oil arrester" and LA shall be stenciled on the upper left side of the transformer cabinet door. • The manufacturer shall provide the following certified data by transformer serial number for each transformer shipped: excitation loss, impedance, and total loss.