Start-Up Procedure: InfraStruXure System
34 InfraStruXure System—Installation and Start-Up
Apply power to the system
1. Set the upstream input circuit breaker (utility or UPS) to ON.
2. Ensure A-B-C clockwise phase rotation at the top of the Main Input on the PDU, using a phase
rotation meter.
3. Set the Main Input on the PDU to ON.
4. Verify A-B-C clockwise phase rotation at the top of the primary winding of the transformer,
using a phase rotation meter.
5. Verify that the proper voltage is present on the secondary winding of the transformer
(208V, metered phase-to-phase), using a true RMS voltmeter.