GE L30 Instruction Manual page 253
Line current differential
system, ur series
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Also See for L30:
- Instruction manual (702 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (630 pages)
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5 SETTINGS
b) CURRENT DIFFERENTIAL
PATH: SETTINGS
GROUPED ELEMENTS
CURRENT
DIFFERENTIAL
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The following settings are available for current differential protection.
•
CURRENT DIFF SIGNAL SOURCE 1: This setting selects the first source for the current differential element local
operating current. If more than one source is configured, the other source currents are scaled to the CT with the maxi-
mum primary current assigned by the
source is mandatory and is assigned with the
•
CURRENT DIFF BLOCK: This setting selects a FlexLogic™ operand to block the operation of the current differential
element.
•
CURRENT DIFF PICKUP: This setting is used to select current differential pickup value.
GE Multilin
SETTING GROUP 1(6)
LINE DIFFERENTIAL...
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
CURRENT DIFF GND
FUNCTION: Disabled
CURRENT DIFF GND
PICKUP: 0.10 pu
CURRENT DIFF GND
RESTRAINT: 25%
CURRENT DIFF GND
DELAY: 0.10 s
CURRENT DIFF DTT:
Enabled
CURRENT DIFF KEY DTT:
Off
CURRENT DIFF
TARGET: Self-reset
CURRENT DIFF
EVENTS: Disabled
CURRENT DIFF SIGNAL SOURCE 1
SYSTEM SETUP
SIGNAL SOURCES
L30 Line Current Differential System
5.6 GROUPED ELEMENTS
CURRENT DIFFERENTIAL
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, Enabled
Range: 0.05 to 1.00 pu in steps of 0.01
Range: 1 to 50% in steps of 1
Range: 0.00 to 5.00 s in steps of 0.01
Range: Disabled, Enabled
Range: FlexLogic™ operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
to
CURRENT DIFF SIGNAL SOURCE 4
menu.
SOURCE 1
5
settings. This
5-117
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