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Start-Up Procedure: InfraStruXure System
30 InfraStruXure Site Planning, Installation, Start-Up
Apply power to the system
1. Set the upstream input circuit breaker (utility or UPS) to ON.
2. Ensure R-S-T clockwise phase rotation at the top of the main input switch on the PDU, using a
phase rotation meter.
3. Close (turn ON) the main input switch on the PDU.
4. Verify R-S-T 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
(200 or 173V, metered phase-to-phase), using a true RMS voltmeter.