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GE L90 User Manual

GE L90
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5-160 L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
SYSTEM SETUP CHAPTER 5: SETTINGS
5
Figure 5-72: Disconnect switch control graphical front panel logic (sheet 3 of 3)
5.5.7 FlexCurves
5.5.7.1 Settings
SETTINGS  SYSTEM SETUP  FLEXCURVES  FLEXCURE A(D)
FlexCurves A through D have settings for entering times to reset and operate at the following pickup levels: 0.00 to 0.98
and 1.03 to 20.00. This data is converted into two continuous curves by linear interpolation between data points. To enter
a custom FlexCurve, enter the reset and operate times (using the
VALUE keys) for each selected pickup point (using the
MESSAGE up/down keys) for the required protection curve (A, B, C, or D).
FLEXCURVE A
FLEXCURVE A TIME AT
0.00 xPKP: 0 ms
Range: 0 to 65535 ms in steps of 1
FLEXCURVE A TIME AT
0.05 xPKP: 0 ms
Range: 0 to 65535 ms in steps of 1
FLEXCURVE A TIME AT
20.00xPKP: 0 ms
Range: 0 to 65535 ms in steps of 1

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GE L90 Specifications

General IconGeneral
CommunicationEthernet, Serial
MountingPanel Mount
Frequency50/60 Hz
InputsDigital, Analog
OutputsRelay
ControlLocal, Remote
Communication InterfaceIEC 61850, DNP3, Modbus
Protection FunctionsDifferential, Ground Fault
Standards ComplianceIEC, IEEE

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