GE Multilin L60 Line Phase Comparison System 5-165
5 SETTINGS 5.5 GROUPED ELEMENTS
5
Figure 5–86: PHASE DIRECTIONAL SCHEME LOGIC
5.5.9 NEUTRAL CURRENT
a) MAIN MENU
PATH: SETTINGS ÖØ GROUPED ELEMENTS Ö SETTING GROUP 1(6) ÖØ NEUTRAL CURRENT
The L60 Line Phase Comparison System 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.
NEUTRAL CURRENT
NEUTRAL TOC1
See page 5–166.
MESSAGE
NEUTRAL TOC2
See page 5–166.
MESSAGE
NEUTRAL IOC1
See page 5–167.
MESSAGE
NEUTRAL IOC2
See page 5–167.
MESSAGE
NEUTRAL
DIRECTIONAL 1
See page 5–168.
MESSAGE
NEUTRAL
DIRECTIONAL 2
See page 5–168.
FLEXLOGIC OPERAND
FLEXLOGIC OPERAND
FLEXLOGIC OPERAND
FLEXLOGIC OPERAND
SETTING
SETTING
SETTING
SETTING
SETTING
SETTING
PHASE DIR 1
FUNCTION:
PHASE DIR 1 SOURCE:
PHASE DIR 1 BLOCK OC
WHEN V MEM EXP:
PHASE DIR 1
BLOCK:
PHASE DIR 1 ECA:
PHASE DIR 1 POL V
THRESHOLD:
PH DIR1 BLK A
PH DIR1 BLK B
PH DIR1 BLK C
PH DIR1 BLK
Disabled=0
IA
No
Seq=ABC Seq=ACB
Ye s
VBC VCB
827078A6.CDR
Off=0
V MINIMUM
-Use V when V Min
-Use V memory when
V < Min
I 0.05 pu
Enabled=1
AND
AND
OR
MEMORY TIMER
1 cycle
1 sec
Vpol
0
I
1
RUN
AND
PHASE B LOGIC SIMILAR TO PHASE A
PHASE C LOGIC SIMILAR TO PHASE A
OR
USE ACTUAL VOLTAGE
USE MEMORIZED VOLTAGE
To Next Page
Loading...
Need help?
General
