Electrical · E-BS3W7

Level 2 Head House Electrical Distribution Board Riser Diagram

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An 800-ampere, 480Y/277-volt, 3-phase, 4-wire distribution board with a 42KAIC fault current rating serves as the main feed for Level 2 Head House. The panel distributes power through twelve numbered three-pole circuits connected to motor control panels MCP-11 through MCP-22, each listed with specific amperages ranging from 17.35A to 222.8A. Individual breaker configurations feature specific ampere trip and ampere frame ratings, including 150AT/225AF, 90AT/100AF, 350AT/400AF, 400AT/400AF, 225AT/225AF, 125AT/225AF, 50AT/100AF, and 40AT/100AF units. An 800AF/800AT three-pole breaker connects downstream to a VSC unit via circuit 6.

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