Connect the Power Cables in the Input Transformer Cabinets in a Duals Mains System
NOTE: Route the input cables, bypass cables, load cables, and DC cables separately to avoid
EMC disturbance.
NOTE: Route the power cables in front of the horizontal bracket in the top or bottom of
the input transformer cabinet to ensure correct separation from the transformer.
- Route the equipment grounding conductor through the top or bottom of input transformer cabinet 1 and input transformer cabinet 2. Connect the equipment grounding conductor to the ground busbar in input transformer cabinet 1 and input transformer cabinet 2.
- Route the input cables through the top or bottom of input transformer cabinet 1 and connect the input cables (L1, L2, L3, N) to the 600 V input busbars in input transformer cabinet 1.
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Connect the provided UPS input cables (L1, L2, L3, N) to the UPS input busbars in
input transformer cabinet 1.
Front View of Input Transformer Cabinet 1 and Input Transformer Cabinet 2 and the UPS – Top Cable Entry
Front View of Input Transformer Cabinet 1 and Input Transformer Cabinet 2 and the UPS – Bottom Cable Entry
- Route the UPS input cables through the cable entry opening in the left side of input transformer cabinet 1, through input transformer cabinet 2, and into the UPS.
- Route the bypass cables through the top or bottom of input transformer cabinet 2 and connect the bypass cables (L1, L2, L3, N) to the 600 V bypass busbars in input transformer cabinet 2.
- Connect the provided UPS bypass cables (L1, L2, L3, N) to the UPS bypass busbars in input transformer cabinet 2.
- Route the UPS bypass cables through the cable entry opening in the left side of input transformer cabinet 2 and into the UPS.
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Perform one of the following:
- For top cable entry: Route the output cables and the DC cables through the top of input transformer cabinet 2 and through the cable entry opening in the left side of input transformer cabinet 2 and into the UPS.
- For bottom cable entry: Route the output cables and the DC cables through the bottom of the UPS.
- Fasten the power cables to the horizontal bracket in the top or bottom of input transformer cabinet 1 and input transformer cabinet 2 with cable ties.
- Follow the UPS installation manual to connect the UPS input cables, the UPS bypass cables, the DC cables, and the output cables in the UPS.