Neutral Current - GE L60 Instruction Manual

5.5 GROUPED ELEMENTS
SETTING
PHASE DIR 1
FUNCTION:
Disabled=0
Enabled=1
SETTING
AND
PHASE DIR 1
BLOCK:
Off=0
SETTING
PHASE DIR 1 SOURCE: I
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

The L60 Line Phase Comparison Relay has two (2) Neutral Time Overcurrent, two (2) Neutral Instantaneous Overcurrent,
and two (2) Neutral Directional Overcurrent elements. These elements are described in the following sub-sections.
5-126
0.05 pu
Min
MEMORY TIMER
1 cycle
MINIMUM
USE ACTUAL VOLTAGE
USE MEMORIZED VOLTAGE
Figure 5–71: PHASE DIRECTIONAL SCHEME LOGIC
SETTING GROUP 1(6)
NEUTRAL TOC1
NEUTRAL TOC2
MESSAGE
NEUTRAL IOC1
MESSAGE
NEUTRAL IOC2
MESSAGE
NEUTRAL
MESSAGE
DIRECTIONAL 1
NEUTRAL
MESSAGE
DIRECTIONAL 2
L60 Line Phase Comparison Relay
SETTING
PHASE DIR 1 ECA:
AND RUN
0
Vpol
1
I
1 sec
NEUTRAL CURRENT
See page 5–127.
See page 5–127.
See page 5–128.
See page 5–128.
See page 5–129.
See page 5–129.
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