Load Encroachment - GE D30 Instruction Manual

GROUPED ELEMENTS

5.7.6 Load encroachment

SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  LOAD ENCROACHMENT
 LOAD ENCROACHMENT

5
The load encroachment element responds to the positive-sequence voltage and current and applies a characteristic as
shown in the figure.
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.
5-182
LOAD ENCROACHMENT

FUNCTION: Disabled
LOAD ENCROACHMENT

SOURCE: SRC 1
LOAD ENCROACHMENT

MIN VOLT: 0.250 pu
LOAD ENCROACHMENT

REACH: 1.00 Ω
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
Figure 5-99: Load encroachment characteristic
–REACH
LOAD ENCROACHMENT
OPERATE
Range: Disabled, Enabled
Range: SRC 1, SRC 2
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
X
REACH
LOAD ENCROACHMENT
OPERATE
827846A1.CDR
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
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