Electrical · E-63W2M

Electrical Distribution Riser Diagram with Transformers

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A 75 kVA three-phase, four-wire transformer steps down power from 480V to 208Y/120V, designated as T2D-LA. The transformer is connected to upstream switchgear via a 30-amp circuit and supplies downstream panelboard 2LA1D protected by a 225-amp, 3-pole breaker. Equipment grounding is provided using a number 4/0 copper conductor routed to a ground per the National Electrical Code.

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