GE D30D00HCHF8AH6AM6BP8BX7A Instruction Manual page 252

5.6 GROUPED ELEMENTS
The distance zones can be forced to become self-polarized through the
dition (FlexLogic operand) can be configured to force self-polarization. When the selected operand is asserted (logic 1), the
distance functions become self-polarized regardless of other memory voltage logic conditions. When the selected operand
is de-asserted (logic 0), the distance functions follow other conditions of the memory voltage logic as shown below.
The distance zones can be forced to become memory-polarized through the
condition (any FlexLogic operand) can be configured to force memory polarization. When the selected operand is asserted
(logic 1), the distance functions become memory-polarized regardless of the positive-sequence voltage magnitude at this
time. When the selected operand is de-asserted (logic 0), the distance functions follow other conditions of the memory volt-
age logic.
The
FORCE SELF-POLAR
will give higher priority to forcing self-polarization as indicated in the logic below. This is consistent with the overall philoso-
phy of distance memory polarization.
The memory polarization cannot be applied permanently but for a limited time only; the self-polarization may be
applied permanently and therefore should take higher priority.
NOTE
5
b) PHASE DISTANCE

PATH: SETTINGS GROUPED ELEMENTS
 PHASE DISTANCE Z1

5-126
and settings should never be asserted simultaneously. If this happens, the logic
FORCE MEM-POLAR
Figure 5–50: MEMORY VOLTAGE LOGIC

SETTING GROUP 1(6)
PHS DIST Z1
FUNCTION: Disabled
PHS DIST Z1 DIR:
MESSAGE
Forward
PHS DIST Z1
MESSAGE
SHAPE: Mho
PHS DIST Z1 XFMR VOL
MESSAGE
CONNECTION: None
PHS DIST Z1 XFMR CUR
MESSAGE
CONNECTION: None
PHS DIST Z1
MESSAGE
REACH:
PHS DIST Z1
MESSAGE
RCA: 85°
PHS DIST Z1 REV
MESSAGE
REACH: 2.00 ohms
D30 Line Distance Protection System
FORCE SELF-POLAR
FORCE MEM-POLAR
 
DISTANCE PHASE DISTANCE Z1(Z5)
Range: Disabled, Enabled
Range: Forward, Reverse, Non-directional
Range: Mho, Quad
Range: None, Dy1, Dy3, Dy5, Dy7, Dy9, Dy11, Yd1, Yd3,
Yd5, Yd7, Yd9, Yd11
Range: None, Dy1, Dy3, Dy5, Dy7, Dy9, Dy11, Yd1, Yd3,
Yd5, Yd7, Yd9, Yd11
Range: 0.02 to 500.00 ohms in steps of 0.01
2.00 ohms
Range: 30 to 90° in steps of 1
Range: 0.02 to 500.00 ohms in steps of 0.01
5 SETTINGS
setting. Any user-selected con-
setting. Any user-selected
GE Multilin