Electrical · E-FWAQZ

Emergency Generator and ATS Power Distribution Diagram

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An eighty kilowatt diesel generator connects to a separately derived system with a one hundred fifty amp three-pole and a seventy amp three-pole breaker. A number three-slash-zero copper equipment grounding conductor provides grounding, while a one-and-a-half-inch conduit carries control wiring to the automatic transfer switch and a two-inch conduit serves the block heater and battery charger. The ATS is rated at six hundred amps, four poles, two-seventy over four-eighty volts, with an open-transition and maintenance bypass switch having a fault current rating of fifty kiloamps. A fifty kilowatt uninterruptible power supply connects with two-seventy over four-eighty volt input and two-oh-eight over one-twenty volt output.

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