Schweitzer Engineering Laboratories SEL-351 - Page 353

Date Code 20001006 Setting the Relay 9-11
SEL-351 Instruction Manual
Table 9.10: Relay Word Bit Definitions for SEL-351
Row numbers for Model 0351xT. Row numbers in parenthesis indicate corresponding row
number on Models 0351x0, 0351x1, and 0351xY, if different.
Row Bit Definition
Primary
Application
2 50A1 Level 1 A-phase instantaneous overcurrent element
(A-phase current above pickup setting 50P1P; see
Figure 3.1)
Tripping,
Control
50B1 Level 1 B-phase instantaneous overcurrent element
(B-phase current above pickup setting 50P1P; see
Figure 3.1)
50C1 Level 1 C-phase instantaneous overcurrent element
(C-phase current above pickup setting 50P1P; see
Figure 3.1)
50A2 Level 2 A-phase instantaneous overcurrent element
(A-phase current above pickup setting 50P2P; see
Figure 3.1)
50B2 Level 2 B-phase instantaneous overcurrent element
(B-phase current above pickup setting 50P2P; see
Figure 3.1)
50C2 Level 2 C-phase instantaneous overcurrent element
(C-phase current above pickup setting 50P2P; see
Figure 3.1)
50A3 Level 3 A-phase instantaneous overcurrent element
(A-phase current above pickup setting 50P3P; see
Figure 3.1)
50B3 Level 3 B-phase instantaneous overcurrent element
(B-phase current above pickup setting 50P3P; see
Figure 3.1)
3 50C3 Level 3 C-phase instantaneous overcurrent element
(C-phase current above pickup setting 50P3P; see
Figure 3.1)
50A4 Level 4 A-phase instantaneous overcurrent element
(A-phase current above pickup setting 50P4P; see
Figure 3.1)
50B4 Level 4 B-phase instantaneous overcurrent element
(B-phase current above pickup setting 50P4P; see
Figure 3.1)
50C4 Level 4 C-phase instantaneous overcurrent element
(C-phase current above pickup setting 50P4P; see
Figure 3.1)
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