blocked and the timers are reset. In the "Block OPERATE output" mode, the functionoperates normally but the OPERATE output is not activated.4.1.2.6 Measurement modesThe function operates on three alternative measurement modes: “RMS”, “DFT” and“Peak-to-Peak” . The measurement mode is selected with the Measurement modesetting.Table 367:Measurement modes supported by DPHxPDOC stagesMeasurement mode DPHLPDOC DPHHPDOCRMS x xDFT x xPeak-to-Peak x x4.1.2.7 Directional overcurrent characteristicsThe forward and reverse sectors are defined separately. The forward operation area islimited with the Min forward angle and Max forward angle settings. The reverseoperation area is limited with the Min reverse angle and Max reverse angle settings.The sector limits are always given as positive degree values.In the forward operation area, the Max forward angle setting gives thecounterclockwise sector and the Min forward angle setting gives the correspondingclockwise sector, measured from the Characteristic angle setting.In the backward operation area, the Max reverse angle setting gives thecounterclockwise sector and the Min reverse angle setting gives the correspondingclockwise sector, a measurement from the Characteristic angle setting that has beenrotated 180 degrees.Relay characteristic angle (RCA) is set positive if the operating current lags thepolarizing quantity and negative if the operating current leads the polarizing quantity.Section 4 1MRS759142 CProtection functions332 REX640Technical Manual
