Schweitzer Engineering Laboratories SEL-311C - Figure 3.16 Zone Timing Elements

3.21
Date Code 20060320 Instruction Manual SEL-311C Relay
Distance, Out-of-Step, Overcurrent, Voltage, Synchronism Check, and Frequency Elements
Distance Element Operating Time Curves at Nominal Frequency
q From Figure 3.4; w from Figure 3.7; e from Figure 3.5; r from Figure 3.8; t from Figure 3.6; y from Figure 3.9.
Figure 3.16 Zone Timing Elements
SUSPEND TIMING
Z2T
r Z2G
Zone 2 Delay Timer Logic
M2PT
Z2GT
SUSPEND TIMING
Z4T
y Z4G
Zone 4 Delay Timer Logic
M4PT
Z4GT
t M4P
e M2P
Z2D
0
Z2PD
0
Z2GD
0
Z4D
0
Z4PD
0
Z4GD
0
Z1D
0
Z1PD
0
Z1GD
0
SUSPEND TIMING
SUSPEND TIMING
Z1T
w Z1G
Zone 1 Delay Timer Logic
M1PT
Z1GT
q M1P
Z3T
y Z3G
Zone 3 Delay Timer Logic
M3PT
Z3GT
t M3P
Z3D
0
Z3PD
0
Z3GD
0