Three-Phase AC Box - Phase Current Balancing - BAR Managed Servers - IntelliBase Platforms - IntelliFlex Platforms

Teradata® Hardware Site Preparation Guide

Product
BAR Managed Servers
IntelliBase Platforms
IntelliFlex Platforms
Published
October 2020
Language
English (United States)
Last Update
2020-10-26
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Product Category
Hardware
Phase currents are not balanced on three-phase AC feeder boxes. If you have more than one cabinet with the three-phase AC feeder box, you need to rotate the phase connections on each outlet to minimize the aggregate site imbalance. The following table provides information on how to connect the phases to the receptacle to rotate the phase connections.
With a three-phase Wye AC feeder box, the phase imbalance results in a current on the neutral wire.
Cabinet # Phase #1 Phase #2 Phase #3
Cabinet #1 L1 L2 L3
Cabinet #2 L3 L1 L2
Cabinet #3 L2 L3 L1
Cabinet #4 L1 L2 L3
Cabinet #5 L3 L1 L2
Cabinet #6 L2 L3 L1
Cabinet #7 and so on and so on and so on