CHAPTER 5: SETTINGS GROUPED ELEMENTS
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-217
5
5.7.3 Line differential elements
SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) LINE DIFFERENTIAL ELEMENTS
5.7.3.1 Current differential (ANSI 87L)
SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) LINE DIFFERENTIAL... CURRENT DIFFERENTIAL
LINE DIFFERENTIAL
ELEMENTS
CURRENT
DIFFERENTIAL
See below
STUB BUS
See page 5-221
CURRENT
DIFFERENTIAL
CURRENT DIFF
FUNCTION: Disabled
Range: Disabled, Enabled
CURRENT DIFF SIGNAL
SOURCE 1: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4
CURRENT DIFF SIGNAL
SOURCE 2: None
Range: None, SRC 1, SRC 2, SRC 3, SRC 4
CURRENT DIFF SIGNAL
SOURCE 3: None
Range: None, SRC 1, SRC 2, SRC 3, SRC 4
CURRENT DIFF SIGNAL
SOURCE 4: None
Range: None, SRC 1, SRC 2, SRC 3, SRC 4
CURRENT DIFF BLOCK:
Off
Range: FlexLogic operand
CURRENT DIFF
PICKUP: 0.20 pu
Range: 0.10 to 4.00 pu in steps of 0.01
CURRENT DIFF
CT TAP 1: 1.00
Range: 0.20 to 5.00 in steps of 0.01
CURRENT DIFF
CT TAP 2: 1.00
Range: 0.20 to 5.00 in steps of 0.01
CURRENT DIFF
RESTRAINT 1: 30%
Range: 1 to 50% in steps of 1
CURRENT DIFF
RESTRAINT 2: 50%
Range: 1 to 70% in steps of 1
CURRENT DIFF
BREAK PT: 1.0 pu
Range: 0.0 to 20.0 pu in steps of 0.1
INRUSH INHIBIT MODE:
Disabled
Range: Disabled, Per phase, 2-out-of-3, Average
INRUSH INHIBIT
LEVEL: 20% fo
Range: 1.0 to 40.0% f
0
in steps of 0.1
CURRENT DIFF GND
FUNCTION: Disabled
Range: Disabled, Enabled
CURRENT DIFF GND
PICKUP: 0.10 pu
Range: 0.05 to 1.00 pu in steps of 0.01
CURRENT DIFF GND
RESTRAINT: 25%
Range: 1 to 50% in steps of 1
CURRENT DIFF GND
DELAY: 0.10 s
Range: 0.00 to 5.00 s in steps of 0.01
CURRENT DIFF DTT:
Enabled
Range: Disabled, Enabled
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