GE L90 Instruction Manual page 383

CHAPTER 5: SETTINGS
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 (ANSI 87L)
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  LINE DIFFERENTIAL...  CURRENT DIFFERENTIAL
 CURRENT
 DIFFERENTIAL
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
 CURRENT

 DIFFERENTIAL
 STUB BUS


CURRENT DIFF

FUNCTION: Disabled
CURRENT DIFF SIGNAL

SOURCE 1: SRC 1
CURRENT DIFF SIGNAL

SOURCE 2: None
CURRENT DIFF SIGNAL

SOURCE 3: None
CURRENT DIFF SIGNAL

SOURCE 4: None
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
INRUSH INHIBIT

LEVEL: 20% fo
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
GROUPED ELEMENTS
See below
See page 5-201
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: None, SRC 1, SRC 2, SRC 3, SRC 4
Range: None, SRC 1, SRC 2, SRC 3, SRC 4
Range: None, SRC 1, SRC 2, SRC 3, SRC 4
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
Range: 1.0 to 40.0% f in steps of 0.1
0
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
5
5-197