Schweitzer Engineering Laboratories SEL-311C - Page 600

SET.2 of 6 SEL-311C Settings Sheet Application Setting 221F-3
SEL-311C Relay Instruction Manual Date Code 20060320
Date________________
Zone 3 (OFF, 0.05–64.00 Ω secondary {5 A nom.};
0.25–320.00 Ω secondary {1 A nom.})
Z3P =
Mho Ground Distance Elements
Zone 1 (OFF, 0.05–64.00 Ω secondary {5 A nom.};
0.25–320.00 W secondary {1 A nom.}) (see Figure 3.7)
Z1MG =
Zone 2 (OFF, 0.05–64.00 Ω secondary {5 A nom.};
0.25–320.00 Ω secondary {1 A nom.}) (see Figure 3.8)
Z2MG =
Zone 3 (OFF, 0.05–64.00 Ω secondary {5 A nom.};
0.25–320.00 Ω secondary {1 A nom.}) (see Figure 3.9)
Z3MG =
Mho Phase and Ground Distance Element Time Delays
Zone 2 phase time delay (OFF, 0–16000 cycles) Z2PD =
Zone 2 ground distance time delay (OFF, 0–16000 cycles)
Z2GD =
Zone 3 time delay (OFF, 0–16000 cycles)
Z3D =
Phase Inst./Def.-Time Overcurrent Elements (See Figure 3.19)
Level 1 (OFF, 0.25–100.00 A secondary {5 A nom.};
0.05–20.00 A secondary {1 A nom.})
50P1P =
Level 2 (OFF, 0.25–100.00 A secondary {5 A nom.};
0.05–20.00 A secondary {1 A nom.})
50P2P =
Residual Ground Inst./Def.-Time Overcurrent Elements (See Figure 3.22)
Level 1 (OFF, 0.25–100.00 A secondary {5 A nom.};
0.05–20.00 A secondary {1 A nom.})
50G1P =
Level 2 (OFF, 0.25–100.00 A secondary {5 A nom.};
0.05–20.00 A secondary {1 A nom.})
50G2P =
Residual Ground Time-Overcurrent Element (See Figure 3.25)
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–Figure 9.10)
51GC =
Time Dial (0.50–15.00 for curves U1–U5;
0.05–1.00 for curves C1–C5)
51GTD =
Synchronism Check Elements (See Figure 3.30 and Figure 3.31)
Voltage window—low threshold (0.00–150.00 V secondary) 25VLO =
Voltage window—high threshold (0.00–150.00 V secondary)
25VHI =
Maximum slip frequency (0.005–0.500 Hz)
25SF =
Maximum angle 1 (0.00°–80.00°)
25ANG1 =
Maximum angle 2 (0.00°–80.00°)
25ANG2 =