GE t60 Instruction Manual page 269

5 SETTINGS
D60, L60, and L90 only
FLEXLOGIC OPERANDS
OPEN POLE OP A Ф
OPEN POLE OP B Ф
OPEN POLE OP C Ф
SETTING
GND DIST Z1 FUNCTION
Enabled = 1
Disabled = 0
AND
SETTING
GND DIST Z1 BLK
Off = 0
SETTING
DISTANCE SOURCE
IA-IB
IB-IC
IC-IA
VAG-VBG
VBG-VCG
VCG-VAG
VAB
VBC
VCA
I_2
I_0
V_1
I_1
IN
GE Multilin
SETTINGS
GND DIST Z1 DIR
GND DIST Z1 SHAPE
GND DIST Z1 Z0/Z1 MAG
GND DIST Z1 Z0/Z1 ANG
GND DIST Z1 ZOM/Z1 MAG
GND DIST Z1 ZOM/Z1 ANG
GND DIST Z1 REACH
GND DIST Z1 RCA
GND DIST Z1 REV REACH
GND DIST Z1 REV REACH RCA
GND DIST Z1 POL CURRENT
GND DIST Z1 NON-HOMGEN ANG
GND DIST Z1 COMP LIMIT
GND DIST Z1 DIR RCA
GND DIST Z1 DIR COMP LIMIT
GND DIST Z1 VOLT LEVEL
GND DIST Z1 QUAD RGT BLD
GND DIST Z1 QUAD RGT BLD RCA
GND DIST Z1 QUAD LFT BLD
GND DIST Z1 QUAD LFT BLD RCA
RUN
A ELEMENT
RUN
B ELEMENT
RUN
C ELEMENT
MEMORY
TIMER
1 cycle
V_1 > 0.80 pu
OR
I_1 > 0.025 pu
SETTING
GND DIST Z1 SUPV
RUN
| IN – 0.05 × I_1 | > Pickup
Figure 5–67: GROUND DISTANCE ZONE 1 SCHEME LOGIC
T60 Transformer Protection System
Quadrilateral
characteristic
only
1 cycle
FLEXLOGIC OPERAND
GND DIST Z1 SUPN IN
5.6 GROUPED ELEMENTS
FLEXLOGIC OPERANDS
GND DIST Z1 PKP AB
AND
GND DIST Z1 DPO A
FLEXLOGIC OPERANDS
GND DIST Z1 PKP B
AND
GND DIST Z1 DPO B
FLEXLOGIC OPERANDS
GND DIST Z1 PKP C
AND
GND DIST Z1 DPO C
FLEXLOGIC OPERAND
OR GND DIST Z1 PKP
837007AF.CDR
5-137
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