SETTINGS SHEET Page 15 of 24
FOR THE SEL-351 RELAY Date
SELOGIC CONTROL EQUATION SETTINGS (SERIAL PORT COMMAND SET L)
Date Code 20001006
Latch Bits Set/Reset Equations (See Figure 7.13)
Set Latch Bit LT1 SET1 =
Reset Latch Bit LT1 RST1 =
Set Latch Bit LT2 SET2 =
Reset Latch Bit LT2 RST2 =
Set Latch Bit LT3 SET3 =
Reset Latch Bit LT3 RST3 =
Set Latch Bit LT4 SET4 =
Reset Latch Bit LT4 RST4 =
Set Latch Bit LT5 SET5 =
Reset Latch Bit LT5 RST5 =
Set Latch Bit LT6 SET6 =
Reset latch Bit LT6 RST6 =
Set Latch Bit LT7 SET7 =
Reset Latch Bit LT7 RST7 =
Set Latch Bit LT8 SET8 =
Reset Latch Bit LT8 RST8 =
Torque Control Equations for Inst./Def.-Time Overcurrent Elements
[Note: torque control equation settings cannot be set directly to logical 0]
Level 1 phase (see Figure 3.3) 67P1TC =
Level 2 phase (see Figure 3.3) 67P2TC =
Level 3 phase (see Figure 3.3) 67P3TC =
Level 4 phase (see Figure 3.3) 67P4TC =
Level 1 neutral ground (see Figure 3.8) 67N1TC =
Level 2 neutral ground (see Figure 3.8) 67N2TC =
Level 3 neutral ground (see Figure 3.8) 67N3TC =
Level 4 neutral ground (see Figure 3.8) 67N4TC =
Level 1 residual ground (see Figure 3.10) 67G1TC =
Level 2 residual ground (see Figure 3.10) 67G2TC =
Level 3 residual ground (see Figure 3.10) 67G3TC =
Level 4 residual ground (see Figure 3.10) 67G4TC =
Level 1 negative-sequence (see Figure 3.12) 67Q1TC =
Level 2 negative-sequence (see Figure 3.12) 67Q2TC =
Level 3 negative-sequence (see Figure 3.12) 67Q3TC =
Level 4 negative-sequence (see Figure 3.12) 67Q4TC =
Courtesy of NationalSwitchgear.com
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