Transformers. a. Each transformer in a double ended sub-station shall be sized to serve 75% of the maximum demand on the sub-station. In critical loads such as hospitals and research facilities or where determined to be necessary by the University and design team, this may be increased to 100%. b. Where feeders are arranged in a looped system, full capacity feed-through capability will be required. c. Generally the first transformation shall be to 277/480 volts, 3 phase, 4 wire. 4160 volts, 3 phase, 3 wire may be required for large motors. d. Three phase dry type transformers shall be installed at strategic locations to provide 120/208 volt, 3 phase, 4 wire service to incandescent and task lighting, convenience outlets, specific equipment loads and small motors. One of the determining factors of the transformer locations shall be the cost of the increased length of branch circuits versus the addition of transformers/panels.
Appears in 4 contracts
Samples: Owner's Design Guidelines Agreement, Owner's Design Guidelines Agreement, Owner’s Design Guidelines Agreement
