CHAPTER 5: SETTINGS GROUPED ELEMENTSD30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 5-1815Figure 5-97: Power swing detect logic (Sheet 2 of 3)Figure 5-98: Power swing detect logic (Sheet 3 of 3)842008A2.CDRSETTINGPOWER SWING SOURCE:I_0I_1I_2| |I_0| - |I_0'|| > K_0SETTINGPOWER SWING FUNCTION:Enabled = 1| |I_1| - |I_1'|| > K_1| |I_2| - |I_2'|| > K_2RUNORI_0, I_1, I_2 - present valuesI_0', I_1', I_2' - half-a-cycle old valuesK_0, K_2 - three times the average change over last power cycleK_1 - four times the average change over last power cycleAND 04 cyclesTIMER010 cyclesTIMERFLEXLOGIC OPERANDPOWER SWING 50DDNOTE:L1 AND L4 LATCHES ARE SET DOMINANTL2, L3 AND L5 LATCHES ARE RESET DOMINANTFLEXLOGIC OPERANDFLEXLOGIC OPERANDFLEXLOGIC OPERANDFLEXLOGIC OPERANDFLEXLOGIC OPERANDFLEXLOGIC OPERANDFLEXLOGIC OPERANDSFLEXLOGIC OPERANDFLEXLOGIC OPERANDSSETTINGSETTINGSSETTINGSETTINGSETTINGSETTINGSETTINGSETTINGPOWER SWINGSEAL-IN DELAY:POWER SWINGDELAY 1 RESET:POWER SWINGDELAY 1 PICKUP:POWER SWINGDELAY 2 PICKUP:POWER SWINGDELAY 3 PICKUP:POWER SWINGDELAY 4 PICKUP:POWER SWING BLK:Off=0POWER SWING TRIPMODE:POWER SWING MODE:POWER SWING TRIPPOWER SWING TMR2 PKPPOWER SWING TMR4 PKPPOWER SWING OUTGOINGPOWER SWING TMR3 PKPPOWER SWING INCOMINGPOWER SWING BLOCKPOWER SWING UN/BLOCKPOWER SWING 50DDPOWER SWING OUTER827841A5.CDRPOWER SWING MIDDLEPOWER SWING INNERAND 3-stepEarly3-step2-stepDelayed2-stepANDORORANDANDAND0tPKPtPKPtPKPtPKPtRSTtRST000ANDAND S Q4RS Q3RS Q2RS Q1RS Q5RL1L5L2L3L4UNBALANCEFrom sheet 1AND
