CHAPTER 4: SETPOINTS PROTECTION889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–181ECARange: –90° to 90° in steps of 1°Default: 75°This setting defines the element characteristic angle (ECA) for the forward direction in"Voltage" polarizing mode. "Current" polarizing mode uses a fixed ECA of 0°. The ECA inthe reverse direction is the angle set for the forward direction shifted by 180°.FORWARD LIMIT ANGLERange: 40° to 90° in steps of 1°Default: 90°This setting defines a symmetrical (in both directions from the ECA) limit angle for theforward direction.FORWARD PICKUPRange: 0.050 to 30.000 x CT in steps of 0.001 x CTDefault: 0.050 x CTThis setting defines the Pickup level for the overcurrent unit of the element in theforward direction. When selecting this setting it must be kept in mind that the designuses a ‘positive-sequence restraint’ technique for the “Calculated 3I0” mode ofoperation.REVERSE LIMIT ANGLERange: 40° to 90° in steps of 1°Default: 90°This setting defines a symmetrical (in both directions from the ECA) limit angle for thereverse direction.REVERSE PICKUPRange: 0.050 to 30.000 x CT in steps of 0.001 x CTDefault: 0.050 x CTThis setting defines the Pickup level for the overcurrent unit of the element in the reversedirection. When selecting this setting it must be kept in mind that the design uses a‘positive-sequence restraint’ technique for the “Calculated 3I0” mode of operation.BLOCKRange: Off, Any FlexLogic operandDefault: OffEVENTSRange: Enabled, DisabledDefault: EnabledTARGETSRange: Self-reset, Latched, DisabledDefault: Self-reset
