Load Encroachment - GE L90 Instruction Manual

5 SETTINGS
PATH: SETTINGS GROUPED ELEMENTS

LOAD ENCROACHMENT

MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The load encroachment element responds to the positive-sequence voltage and current and applies a characteristic shown
in the figure below.
LOAD ENCROACHMENT
The element operates if the positive-sequence voltage is above a settable level and asserts its output signal that can be
used to block selected protection elements such as distance or phase overcurrent. The following figure shows an effect of
the load encroachment characteristics used to block the quadrilateral distance element.
GE Multilin
SETTING GROUP 1(6)
LOAD ENCROACHMENT
FUNCTION: Disabled
LOAD ENCROACHMENT
SOURCE: SRC 1
LOAD ENCROACHMENT
MIN VOLT: 0.250 pu
LOAD ENCROACHMENT
REACH: 1.00
LOAD ENCROACHMENT
ANGLE: 30°
LOAD ENCROACHMENT
PKP DELAY: 0.000 s
LOAD ENCROACHMENT
RST DELAY: 0.000 s
LOAD ENCRMNT BLK:
Off
LOAD ENCROACHMENT
TARGET: Self-reset
LOAD ENCROACHMENT
EVENTS: Disabled
X
–REACH
OPERATE
Figure 5–79: LOAD ENCROACHMENT CHARACTERISTIC
L90 Line Current Differential System
5.6 GROUPED ELEMENTS
5.6.7 LOAD ENCROACHMENT
LOAD ENCROACHMENT
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: 0.000 to 3.000 pu in steps of 0.001
Range: 0.02 to 250.00 ohms in steps of 0.01
Range: 5 to 50° in steps of 1
Range: 0.000 to 65.535 s in steps of 0.001
Range: 0.000 to 65.535 s in steps of 0.001
Range: Flexlogic™ operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
REACH
R
LOAD ENCROACHMENT
OPERATE
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