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Definition of "phase sequence" |
describes the rotational orientation of the voltage phasors in a 3- phase electrical power system. A positive phase sequence, designated by the nomenclature ABC, indicates a 3-phase connection in which the B phase voltage lags the A phase voltage by 120 degrees, and the C phase voltage leads theAphase voltage by 120 degrees. A negative phase sequence, designated by ACB, reverses this relationship so that the B phase leads the A phase, and the C phase lags the A phase. |
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