Transformer for the new Oyster Hatchery building on GCRL's Cedar Point Campus

The transformer shall be designed in accordance with this specification and the kVA rating shall be 1,000 kVA. 2.2. The primary voltage, configuration, and the basic lightning impulse insulation level (BIL) shall be 12,470-volt DELTA @ 95 kV BIL. The contractor MUST field verify primary voltage and provide voltage available at site. The secondary voltage, configuration, and the basic insulation level (BIL) shall be 480Y/277 WYE @ 30 kV BIL. 2.3. The transformer shall be furnished with full capacity high-voltage taps. The taps shall be +/- 2 - 2½% above and below nominal voltage The tap changer shall be clearly labeled to reflect that the transformer must be de-energized before operating the tap changer as required in Section 3.3 of ANSI C57.12.26. Taps shall be provided on the higher voltage of dual voltage primary units. The tap changer switch shall be an externally operated, snap action switch with a hotstick-operable handle. 2.4. The average winding temperature rise above ambient temperature, when tested at the transformer rating, shall not exceed 65C at the base transformer rating, shall not exceed 55C, and when tested at 112% of the base rating, shall not exceed 65C...