Schweitzer Engineering Laboratories SEL-311C - Directional Control Settings; Settings Made Automatically; Settings; Table 4.2 Elements Controlled by Zone;Level Direction Settings (Corresponding Overcurrent and Directional Element Figure Numbers in Parentheses)

4.21
Date Code 20060320 Instruction Manual SEL-311C Relay
Loss-of-Potential, CCVT Transient Detection, Load-Encroachment, and Directional Element Logic
Directional Control Settings
Directional Control Settings
The directional control for overcurrent elements is configured by making
directional control enable setting E32. Setting E32 has setting choices:
➤ Y (All directional control settings made manually)
➤ AUTO (Sets most of the directional element settings
automatically)
Settings Made
Automatically
If the directional control enable setting E32 is set:
E32 = AUTO
then the following directional control settings are calculated and set
automatically:
Z2F, Z2R, 50QFP, 50QRP, a2, k2, 50GFP, 50GRP, a0, Z0F, and Z0R
Once these settings are calculated automatically, they can only be modified if
the user goes back and changes the directional control enable setting to
E32 = Y.
The remaining directional control settings are not set automatically if setting
E32 = AUTO. They have to be set by the user, whether setting E32 = AUTO or
Y. These settings are:
DIR3, DIR4, ORDER, and E32IV
All these settings are explained in detail in the remainder of this subsection.
Settings
Zone 1/Level 1 and Zone 2/Level 2 elements, except 67P1 and 67P2, are fixed
forward and may not be changed by the user.
DIR3-Zone 3/Level 3 Element Direction Setting
DIR4-Zone 4/Level 4 Element Direction Setting
Setting Range:
F = Direction Forward
R = Direction Reverse
Table 4.2 shows the elements that are controlled by each level direction
setting.
Table 4.2 Elements Controlled by Zone/Level Direction Settings (Corresponding Overcurrent and Directional
Element Figure Numbers in Parentheses) (Sheet 1 of 2)
Level
Direction
Settings
Phase Distance Ground Distance Residual Ground Negative-Sequence
Forward M1P (Figure 3.4)
M1PT (Figure 3.16)
Z1G (Figure 3.7)
Z1GT (Figure 3.16)
67G1 (Figure 3.22)
67G1T (Figure 3.22)
67Q1 (Figure 3.23)
67Q1T (Figure 3.23)
Forward M2P (Figure 3.5)
M2PT (Figure 3.16)
Z2G (Figure 3.8)
Z2GT (Figure 3.16)
67G2 (Figure 3.22)
67G2T (Figure 3.22)
67Q2 (Figure 3.23)
67Q2T (Figure 3.23)