Schweitzer Engineering Laboratories SEL-311C - Page 338

SET.8 of 32 Settings Sheets for the SEL-311C Relay
Relay Settings (Serial Port Command SET and Front Panel)
SEL-311C Relay Instruction Manual Date Code 20060320
Date________________
Phase Time-Overcurrent Element (See Figure 3.24)
(Make the following settings if preceding enable setting E51P = Y.)
Pickup (OFF, 0.25–16.00 A secondary {5 A nom.};
0.05–3.20 A secondary {1 A nom.})
51PP =
Curve (U1–U5, C1–C5) (see Figure 9.1 through Figure 9.10)
51PC =
Time Dial (0.50–15.00 for curves U1–U5;
0.05–1.00 for curves C1–C5)
51PTD =
Electromechanical Reset (Y, N)
51PRS =
Residual Ground Time-Overcurrent Element (See Figure 3.25)
(Make the following settings if preceding enable setting E51G = Y.)
Pickup (OFF, 0.25–16.00 A secondary {5 A nom.};
0.05–3.20 A secondary {1 A nom.})
51GP =
Curve (U1–U5, C1–C5) (see Figure 9.1 through Figure 9.10)
51GC =
Time Dial (0.50–15.00 for curves U1–U5;
0.05–1.00 for curves C1–C5)
51GTD =
Electromechanical Reset (Y, N)
51GRS =
Negative-Sequence Time-Overcurrent Element (See Figure 3.26)
See Appendix F: Setting Negative-Sequence Overcurrent Elements for information on setting negative-
sequence overcurrent elements.
(Make the following settings if preceding enable setting E51Q = Y.)
Pickup (OFF, 0.25–16.00 A secondary {5 A nom.};
0.05–3.20 A secondary {1 A nom.})
51QP =
Curve (U1–U5, C1–C5) (see Figure 9.1 through Figure 9.10)
51QC =
Time Dial (0.50–15.00 for curves U1–U5;
0.05–1.00 for curves C1–C5)
51QTD =
Electromechanical Reset (Y, N)
51QRS =
Out-of-Step Settings (See Figure 3.17 and Figure 3.18)
(Make the following settings if preceding enable setting EOOS = Y.)
Block Zone 1 (Y, N)
OOSB1 =
Block Zone 2 (Y, N)
OOSB2 =
Block Zone 3 (Y, N)
OOSB3 =
Block Zone 4 (Y, N)
OOSB4 =
Out-of-Step block time delay (0.5–8000.0 cycles) OSBD =
Enable Out-of-Step tripping (N, I, O)
EOOST =
Out-of-Step trip delay (0.5–8000.0 cycles)
OSTD =