GE D60 - Page 320

5-186 D60 Line Distance Protection System GE Multilin
5.6 GROUPED ELEMENTS 5 SETTINGS
5
Figure 5–82: GROUND DISTANCE ZONE 2 OP SCHEME
For ground distance zone 2, there is a provision to start the zone timer with the other distance zones or loop pickup
flags to avoid prolonging ground distance zone 2 operation if the fault evolves from one type to another or migrates
from zone 3 or 4 to zone 2. The desired zones should be assigned in the trip output element to accomplish this
functionality.
Figure 5–83: GROUND DISTANCE ZONES 3 AND HIGHER OP SCHEME
OR
AND
OR
837037A1.CDR
from the open pole detector element D60, L60, and L90 only)
FLEXLOGIC OPERAND
OPEN POLE OP **
FLEXLOGIC OPERAND
GND DIST Z2 PKP A
FLEXLOGIC OPERAND
GND DIST Z2 PKP B
FLEXLOGIC OPERAND
GND DIST Z2 PKP C
TIMER
0 ms
20 ms
TIMER
0 ms
20 ms
TIMER
0 ms
20 ms
SETTING
GND DIST Z2 DELAY
T
PKP
0
SETTING
GND DIST Z2 DELAY
T
PKP
0
SETTING
GND DIST Z2 DELAY
T
PKP
0
FLEXLOGIC OPERAND
GND DIST Z2 OP A
FLEXLOGIC OPERAND
GND DIST Z2 OP B
FLEXLOGIC OPERAND
GND DIST Z2 OP C
FLEXLOGIC OPERAND
GND DIST Z2 OP
FLEXLOGIC OPERAND
TRIP Z2 GR TMR INIT
OR
OR
OR
AND
OR
AND
OR
AND
AND
AND
from the trip output element
NOTE
OR
AND
AND
AND
OR
OR
OR
837019AA.CDR
** D60, L60, and L90 only.
FLEXLOGIC OPERAND
OPEN POLE OP **
FLEXLOGIC OPERAND
GND DIST Z3 PKP A
FLEXLOGIC OPERAND
GND DIST Z3 PKP B
FLEXLOGIC OPERAND
GND DIST Z3 PKP C
TIMER
0 ms
20 ms
TIMER
0 ms
20 ms
TIMER
0 ms
20 ms
SETTING
GND DIST Z3 DELAY
T
PKP
0
SETTING
GND DIST Z3 DELAY
T
PKP
0
SETTING
GND DIST Z3 DELAY
T
PKP
0
FLEXLOGIC OPERAND
GND DIST Z3 OP A
FLEXLOGIC OPERAND
GND DIST Z3 OP B
FLEXLOGIC OPERAND
GND DIST Z3 OP C
FLEXLOGIC OPERAND
GND DIST Z3 OP