A 500kVA transformer, model TNF1199LC, steps down voltage from 480 volts to 120/208 volts across a three-phase, four-wire system in the main electrical room. The transformer feeds concessions power through connected circuitry designated by reference tags 001D and 001E. A grounding conductor consisting of one number three-slash-zero ground wire enclosed in a one-inch conduit is routed from the unit to earth ground.
480V- 500KVA TNF1199LC 120/208V, 3∅, 4W 1"C-1#3/0 GND. MAIN ELECTRICAL ROOM CONCESSIONS POWER 001D 001E
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