CHAPTER 5: SETTINGS FLEXLOGICM60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5-1895FLEXELEMENT 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.5.6.8 Non-volatile latchesSETTINGS FLEXLOGIC NON-VOLATILE LATCHES LATCH 1(16)DELTA TIME BASE = 1 μsFREQUENCY f BASE = 1 HzPHASE ANGLE ϕBASE = 360 degrees (see the UR angle referencing convention)POWER FACTOR PF BASE = 1.00RTDs BASE = 100°CSENSITIVE DIR POWER(Sns Dir Power)P BASE = maximum value of 3 × VBASE × I BASE for the +IN and –IN inputs of the sources configuredfor the sensitive power directional element(s).SOURCE CURRENT IBASE = maximum nominal primary RMS value of the +IN and –IN inputsSOURCE ENERGY(Positive and Negative Watthours,Positive and Negative Varhours)EBASE = 10000 MWh or MVAh, respectivelySOURCE 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 inputsSTATOR DIFFERENTIAL CURRENT(Stator Diff Iar, Ibr, and Icr)IBASE = maximum primary RMS value of the +IN and –IN inputs(CT primary for source currents, and bus reference primary current for bus differential currents)STATOR RESTRAINING CURRENT(Stator Diff Iad, Ibd, and Icd)IBASE = maximum primary RMS value of the +IN and –IN inputs(CT primary for source currents, and bus reference primary current for bus differential currents)THERMAL MODEL(Model Capacity Used)(Model Motor Unbalance)BASE =100%THERMAL MODEL(Model Lockout Time)BASE = 10 minutesTHERMAL MODEL(Thermal Model Load)(Biased Motor Load)BASE = 1.00 pu of FLATHERMAL MODEL(Trip Time on Overload)BASE = 10 seconds 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 operandUnit Description
