Question

define phase sequence

Answer 1

Phase rotation, or phase sequence, is the order in which the voltage waveforms of a polyphase AC source reach their respective peaks. For a three-phase system, there are only two possible phase sequences: 1-2-3 and 3-2-1, corresponding to the two possible directions of alternatorrotation.

Answer 2

HEY MATE!!
phase sequence, is the order in which the voltage waveforms of a polyphase AC source reach their respective peaks. 
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