POWER MATERIALS

The City of College Park Power Department is soliciting bids for the purchase of single-phase overhead transformers, three-phase UG padmounts, and related power materials. The bid includes the supply of underground transformers, transformer pads, and other related equipment. The bidder is required to provide a certified test report for all transformers, indicating the actual loss data for each unit delivered. The vendor shall also provide an outline drawing showing physical dimensions, total transformer weight, location of accessories, and connection diagram. • The transformers must be designed and tested in accordance with ANSI C57.12.26 and ANSI C57.12.90. • The transformers must be provided with an externally operated no-load tap changer having two 2-½% steps above and two 2-½% steps below the rated voltage. • The low-voltage bushings on units rated 500 kVA and larger shall be supported with an insulating material in a manner designed to counteract the normal and customary downward forces resulting from the connection of multiple cables to the bushings. • The vendor shall guarantee the transformers for a minimum period of 18 months from shipment or 12 months from installation, that all equipment covered by this agreement is to be free from defects in material and workmanship.