5-190 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUALFLEXLOGIC CHAPTER 5: SETTINGS5FLEXELEMENT 1 HYSTERESIS — This setting defines the pickup–dropout relation of the element by specifying the width of thehysteresis loop as a percentage of the pickup value as shown in the FlexElement Direction, Pickup, and Hysteresis diagram.FLEXELEMENT 1 dt UNIT — Specifies the time unit for the setting FLEXELEMENT 1 dt. This setting is applicable only ifFLEXELEMENT 1 COMP MODE is set to “Delta.”FLEXELEMENT 1 dt — Specifies duration of the time interval for the rate of change mode of operation. This setting isapplicable only if FLEXELEMENT 1 COMP MODE is set to “Delta.”FLEXELEMENT 1 PKP DELAY — Specifies the pickup delay of the element.FLEXELEMENT 1 RST DELAY — Specifies the reset delay of the element.5.5.8 Non-volatile latchesSETTINGS FLEXLOGIC NON-VOLATILE LATCHES LATCH 1(16)The non-volatile latches provide a permanent logical flag that is stored safely and do not reset upon restart after the relayis powered down. Typical applications include sustaining operator commands or permanently blocking relay functions,such as Autorecloser, until a deliberate interface action resets the latch.LATCH 1 TYPE — This setting characterizes Latch 1 to be Set- or Reset-dominant.FAULT LOCATION BASE = Line Length as specified in Fault ReportFREQUENCY f BASE = 1 HzPHASE ANGLE ϕBASE = 360 degrees (see the UR angle referencing convention)POWER FACTOR PF BASE = 1.00RTDs BASE = 100°CSOURCE CURRENT IBASE = maximum nominal primary RMS value of the +IN and –IN inputsSOURCE POWER P BASE = maximum value of V BASE × I BASE for the +IN and –IN inputsSOURCE VOLTAGE VBASE = maximum nominal primary RMS value of the +IN and –IN inputsSYNCHROCHECK(Max Delta Volts)VBASE = maximum primary RMS value of all the sources related to the +IN and –IN inputsZ BASE ZBASE = PhaseVTSecondary / PhaseCTSecondary, where PhaseVTSecondary andPhaseCTSecondary are the secondary nominal voltage and the secondary nominal current of thedistance source. In case multiple CT inputs are summed as one source current and mapped as thedistance source, use the PhaseCTSecondary value from the CT with the highest primary nominalcurrent.Distance source is specified in setting under SETTINGS GROUPED ELEMENTS SETTINGGROUP 1(6) DISTANCE.PhaseVTSecondary and PhaseCTSecondary are specified in setting under SETTINGS SYSTEMSETUP AC INPUTS. LATCH 1 LATCH 1FUNCTION: DisabledRange: Disabled, Enabled LATCH 1 ID:NV Latch 1Range: up to 20 alphanumeric characters LATCH 1 TYPE:Reset DominantRange: Reset Dominant, Set Dominant LATCH 1 SET:OffRange: FlexLogic operand LATCH 1 RESET:OffRange: FlexLogic operand LATCH 1TARGET: Self-resetRange: Self-reset, Latched, Disabled LATCH 1EVENTS: DisabledRange: Disabled, EnabledUnit Description
