Neutral Current - GE L90 Instruction Manual

5.5 GROUPED ELEMENTS
SETTING
PHASE DIR 1
FUNCTION:
Disabled=0
Enabled=1
SETTING
AND
PHASE DIR 1
BLOCK:
Off=0
SETTING
I
PHASE DIR 1 SOURCE:
IA
Seq=ABC Seq=ACB
SETTING
VBC VCB
PHASE DIR 1 POL V
THRESHOLD:
-Use V when V
-Use V memory when
V < Min
V
SETTING
PHASE DIR 1 BLOCK OC
WHEN V MEM EXP:
No
Yes
5
PHASE B LOGIC SIMILAR TO PHASE A
PHASE C LOGIC SIMILAR TO PHASE A
a) MAIN MENU
!"
PATH: SETTINGS GROUPED ELEMENTS

# NEUTRAL CURRENT

#
5-118
0.05 pu
Min
MEMORY TIMER
1 cycle
MINIMUM
USE ACTUAL VOLTAGE
USE MEMORIZED VOLTAGE
Figure 5–69: PHASE DIRECTIONAL SCHEME LOGIC
!"
SETTING GROUP 1(6)
# NEUTRAL TOC1
#
# NEUTRAL TOC2
MESSAGE
#
# NEUTRAL IOC1
MESSAGE
#
# NEUTRAL IOC2
MESSAGE
#
# NEUTRAL
MESSAGE
# DIRECTIONAL OC1
# NEUTRAL
MESSAGE
# DIRECTIONAL OC2
L90 Line Differential Relay
SETTING
PHASE DIR 1 ECA:
AND RUN
0
Vpol
1
1 sec
!
NEUTRAL CURRENT
See page 5-119.
See page 5-119.
See page 5-120.
See page 5-120.
See page 5-121.
See page 5-121.
5 SETTINGS
FLEXLOGIC OPERAND
OR PH DIR1 BLK
FLEXLOGIC OPERAND
PH DIR1 BLK A
OR
AND
FLEXLOGIC OPERAND
PH DIR1 BLK B
FLEXLOGIC OPERAND
PH DIR1 BLK C
827078A6.CDR
5.5.9 NEUTRAL CURRENT
GE Multilin