GE Multilin G60 Generator Management Relay 6-176 ACTUAL VALUES 6.3 METERING66.3.6 FREQUENCY RATE OF CHANGEPATH: ACTUAL VALUES ÖØ METERING ÖØ FREQUENCY RATE OF CHANGEThe metered frequency rate of change for the frequency rate of change elements is shown here.6.3.7 FLEXELEMENTS™PATH: ACTUAL VALUES ÖØ METERING ÖØ FLEXELEMENTS Ö FLEXELEMENT 1(16)The operating signals for the FlexElements™ are displayed in pu values using the following definitions of the base units. FREQUENCY RATE OF CHANGEFREQUENCY RATE OFCHANGE 1: 0.00 Hz/sMESSAGE FREQUENCY RATE OFCHANGE 2: 0.00 Hz/sMESSAGE FREQUENCY RATE OFCHANGE 3: 0.00 Hz/sMESSAGE FREQUENCY RATE OFCHANGE 4: 0.00 Hz/s FLEXELEMENT 1FLEXELEMENT 1OpSig: 0.000 puTable 6–2: FLEXELEMENT™ BASE UNITSdcmA BASE = maximum value of the DCMA INPUT MAX setting for the two transducers configuredunder the +IN and –IN inputs.FREQUENCY f BASE = 1 HzFREQUENCY RATE OF CHANGE df/dtBASE = 1 Hz/sPHASE ANGLE ϕBASE = 360 degrees (see the UR angle referencing convention)POWER FACTOR PF BASE = 1.00RTDs BASE = 100°CSENSITIVE DIR POWER(Sns Dir Power)PBASE = maximum value of 3 × V BASE × IBASE for the +IN and –IN inputs of the sourcesconfigured for the sensitive power directional element(s).SOURCE CURRENT I BASE = maximum nominal primary RMS value of the +IN and –IN inputsSOURCE ENERGY(SRC X Positive and NegativeWatthours); (SRC X Positive andNegative Varhours)EBASE = 10000 MWh or MVAh, respectivelySOURCE POWER PBASE = maximum value of V BASE × IBASE for the +IN and –IN inputsSOURCE VOLTAGE VBASE = maximum nominal primary RMS value of the +IN and –IN inputsSTATOR DIFFERENTIALCURRENT(Stator Diff Iar, Ibr, and Icr)I BASE = 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 GROUND 3RDHARMONIC VOLTAGES(Stator Gnd Vn/V0 3rd)VBASE = Primary phase voltage of the STATOR GROUND SOURCESTATOR RESTRAININGCURRENT(Stator Diff Iad, Ibd, and Icd)I BASE = maximum primary RMS value of the +IN and –IN inputs(CT primary for source currents, and bus reference primary current for bus differential currents)SYNCHROCHECK(Max Delta Volts)VBASE = maximum primary RMS value of all the sources related to the +IN and –IN inputsVOLTS PER HERTZ BASE = 1.00 pu
