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Schweitzer Engineering Laboratories SEL-351S - Negative-Sequence Time-Overcurrent Element (See Figure 3.20)*; Load-Encroachment Elements (See Figure 4.2); Directional Elements (See Directional Control Settings in Section 4)

Schweitzer Engineering Laboratories SEL-351S
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Date Code 20010112
Negative-Sequence Time-Overcurrent Element (See Figure 3.20)*
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