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The phase sequence tester finds the continuity, or faulty condition, of all three lines and shows the sequence of phase rotation. It's a fast and effective method to ensure 3-phase outlets and devices are connected correctly.
The phase sequence refers to the order in which the phases (L1, L2, and L3) achieve their greatest positive value. There are two potential sequences: Positive (or ABC) Sequence: The phases peak in the order L1, L2, and L3. Negative (or ACB) Sequence: The phases reach their peak in the following order: L1, L3, and L2
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