Table 203:Measurement modes supported by (F)PHxPTOC stagesMeasurement mode (F)PHLPTOC PHHPTOC PHIPTOCRMS x xDFT x xPeak-to-Peak x xP-to-P + backup xWide P-to-P x 1)1) Available only in REG615 standard configurations C and DFor a detailed description of the measurement modes, see theMeasurement modes section in this manual.4.1.1.6 Timer characteristics(F)PHxPTOC supports both DT and IDMT characteristics. The user can select thetimer characteristics with the Operating curve type and Type of reset curve settings.When the DT characteristic is selected, it is only affected by the Operate delay timeand Reset delay time settings.The protection relay provides 55 IDMT characteristics curves, of which seven complywith the IEEE C37.112 and six with the IEC 60255-3 standard. Two curves follow thespecial characteristics of ABB praxis and are referred to as RI and RD. One userprogrammable curve can be used if none of the standard curves are applicable. Inaddition to this, there are 39 curves for recloser applications. The DT characteristicscan be chosen by selecting the Operating curve type values "ANSI Def. Time" or "IECDef. Time". The functionality is identical in both cases.The timer characteristics supported by different stages comply with the list in the IEC61850-7-4 specification, indicate the characteristics supported by different stages:Table 204:Timer characteristics supported by different stagesOperating curve type (F)PHLPTOC PHHPTOC(1) ANSI Extremely Inverse x x(2) ANSI Very Inverse x(3) ANSI Normal Inverse x x(4) ANSI Moderately Inverse x(5) ANSI Definite Time x x(6) Long Time Extremely Inverse x(7) Long Time Very Inverse x(8) Long Time Inverse x(9) IEC Normal Inverse x x(10) IEC Very Inverse x xTable continues on next page1MRS758755 A Section 4Protection functionsREC615 and RER615 205Technical Manual