Schweitzer Engineering Laboratories SEL-311C - Overcurrent Directional Control Provided by Torque Control Settings; Table 4.4 Torque Control Settings and Elements

4.28
SEL-311C Relay Instruction Manual Date Code 20060320
Loss-of-Potential, CCVT Transient Detection, Load-Encroachment, and Directional Element Logic
Overcurrent Directional Control Provided by Torque Control Settings
Overcurrent Directional Control
Provided by Torque Control Settings
Directional and additional control for phase, ground, and negative-sequence
overcurrent elements is available with SEL
OGIC torque control settings.
Elements that do not have directional control, such as 67P1, may be
directionally controlled with SEL
OGIC control equations.
For example, the SEL
OGIC control equation
67P1TC = M2P
will enable 67P1 and 67P1T when the Zone 2 phase distance element asserts
(forward).
The default settings for all torque control equations is logic “1,” or “enabled.”
Torque control equations may not be set directly to logic “0.”
Table 4.4 Torque Control Settings and Elements
Torq u e
Control Setting
Controlled
Element
Directional and
Additional Control Settings
67P1TC 67P1/67P1T Torque Control
67P2TC 67P2/67P2T Torque Control
67P3TC 67P3/67P3T Torque Control
67G1TC 67G1/67G1T Forward and Torque Control
67G2TC 67G2/67G2T Forward and Torque Control
67G3TC 67G3/67G3T DIR 3 = F or R and Torque Control
67G4TC 67G4/67G4T DIR 4 = F or R and Torque Control
67Q1TC 67Q1/67Q1T Forward and Torque Control
67Q2TC 67Q2/67Q2T Forward and Torque Control
67Q3TC 67Q3/67Q3T DIR 3 = F or R and Torque Control
67Q4TC 67Q4/67Q4T DIR 4 = F or R and Torque Control
51PTC 51P/51PT Torque Control
51GTC 51G/51GT Torque Control
51QTC 51Q/51QT Torque Control