GE D30 Instruction Manual page 297

CHAPTER 5: SETTINGS
— This setting enables the user to select a FlexLogic operand to block a given distance element. VT fuse fail
PHS DIST Z1 BLK
detection is one of the applications for this setting.
FLEXLOGIC OPERAND
PH DIST Z1 PKP AB
FLEXLOGIC OPERAND
PH DIST Z1 PKP BC
FLEXLOGIC OPERAND
PH DIST Z1 PKP CA
FLEXLOGIC OPERANDS
PH DIST Z1 SUPN IAB
PH DIST Z1 SUPN IBC
PH DIST Z1 SUPN ICA
OPEN POLE OP **
** D60, L60, and L90 only. Other UR-series models apply regular current seal-in for zone 1.
For phase distance zone 2, there is a provision to start the zone timer with other distance zones or loop the
pickup flag to avoid prolonging phase distance zone 2 operation when the fault evolves from one type to
another or migrates from the initial zone to zone 2. Assign the required zones in the trip output function to
NOTE
accomplish this functionality.
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 5-84: Phase distance zone 1 OP logic
AND
SETTING
PH DIST Z1 DELAY
AND
T
PKP
0
T
PKP
0 AND
T
PKP
0
AND
AND
AND
Figure 5-85: Phase distance zone 2 OP logic
OR
FLEXLOGIC OPERANDS
PH DIST Z1 OP
OR OR
OR
FLEXLOGIC OPERANDS
PH DIST Z1 OP AB
PH DIST Z1 OP BC
PH DIST Z1 OP CA
837017A8.CDR
GROUPED ELEMENTS
5
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