Schweitzer Engineering Laboratories SEL-351 - Page 346

9-4 Setting the Relay Date Code 20001006
SEL-351 Instruction Manual
Figure 9.1: U.S. Moderately Inverse Curve: U1 Figure 9.2: U.S. Inverse Curve: U2
Figure 9.3: U.S. Very Inverse Curve: U3 Figure 9.4: U.S. Extremely Inverse Curve: U4
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