GE D30 User Manual

5-218 D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS CHAPTER 5: SETTINGS
5
5.7.6 Load encroachment
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  LOAD ENCROACHMENT
The load encroachment element responds to the positive-sequence voltage and current and applies a characteristic as
shown in the figure.
Figure 5-121: Load encroachment characteristic
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.
 LOAD ENCROACHMENT


LOAD ENCROACHMENT
FUNCTION: Disabled
Range: Disabled, Enabled

LOAD ENCROACHMENT
SOURCE: SRC 1
Range: SRC 1, SRC 2

LOAD ENCROACHMENT
MIN VOLT: 0.250 pu
Range: 0.004 to 3.000 pu in steps of 0.001

LOAD ENCROACHMENT
REACH: 1.00 Ω
Range: 0.02 to 250.00 ohms in steps of 0.01

LOAD ENCROACHMENT
ANGLE: 30°
Range: 5 to 50° in steps of 1

LOAD ENCROACHMENT
PKP DELAY: 0.000 s
Range: 0.000 to 65.535 s in steps of 0.001

LOAD ENCROACHMENT
RST DELAY: 0.000 s
Range: 0.000 to 65.535 s in steps of 0.001

LOAD ENCRMNT BLK:
Off
Range: FlexLogic operand

LOAD ENCROACHMENT
TARGET: Self-reset
Range: Self-reset, Latched, Disabled

LOAD ENCROACHMENT
EVENTS: Disabled
Range: Disabled, Enabled

GE D30 Specifications

General

Brand	GE
Model	D30
Category	Relays
Language	English