Line Differential Elements - GE L30 Instruction Manual

CHAPTER 5: SETTINGS
Each of the six setting group menus is identical. Setting group 1 (the default active group) is active automatically when no
other group is active.
If the device incorrectly switches to group 1 after power cycling, upgrade the firmware to version 7.31 or later to correct
this issue.

5.7.3 Line differential elements

SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  LINE DIFFERENTIAL ELEMENTS
 LINE DIFFERENTIAL
 ELEMENTS
5.7.3.1 Current differential
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  LINE DIFFERENTIAL...  CURRENT DIFFERENTIAL
 CURRENT
 DIFFERENTIAL
L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
 NEUTRAL CURRENT


 GROUND CURRENT


 NEGATIVE SEQUENCE

 CURRENT
 BREAKER FAILURE


 VOLTAGE ELEMENTS


 SUPERVISING

 ELEMENTS
 CURRENT

 DIFFERENTIAL
 STUB BUS


CURRENT DIFF

FUNCTION: Disabled
CURRENT DIFF SIGNAL

SOURCE 1: SRC 1
CURRENT DIFF BLOCK:

Off
CURRENT DIFF

PICKUP: 0.20 pu
CURRENT DIFF

CT TAP 1: 1.00
CURRENT DIFF

CT TAP 2: 1.00
CURRENT DIFF

RESTRAINT 1: 30%
CURRENT DIFF

RESTRAINT 2: 50%
CURRENT DIFF

BREAK PT: 1.0 pu
INRUSH INHIBIT MODE:

Disabled
GROUPED ELEMENTS
See page 5-226
See page 5-234
See page 5-237
See page 5-239
See page 5-249
See page 5-256
See below
See page 5-213
Range: Disabled, Enabled
Range: SRC 1, SRC 2
Range: FlexLogic operand
Range: 0.10 to 4.00 pu in steps of 0.01
Range: 0.20 to 5.00 in steps of 0.01
Range: 0.20 to 5.00 in steps of 0.01
Range: 1 to 50% in steps of 1
Range: 1 to 70% in steps of 1
Range: 0.0 to 20.0 pu in steps of 0.1
Range: Disabled, Per phase, 2-out-of-3, Average
5
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