5-310 D60 Line Distance Protection System GE Multilin5.7 CONTROL ELEMENTS 5 SETTINGS5Figure 5–159: VT FUSE FAIL SCHEME LOGICBase voltage for this element is PHASE VT SECONDARY setting in the case of WYE VTs and (PHASE VT SECONDARY)/in case of DELTA VTs.827093AQ.CDRFUSEFAILFAULTANDANDANDSETRESETReset-dominantLatchANDANDANDANDORORORORFunctionSETTINGEnabled = 1SOURCE 1V_2V_1I_1RunV_1 < 0.05 puRunV_2 > 0.1 puRunI_1 > 0.075 puRunV_1 < 0.80 puRunI_1 < 0.05 puSRC1 50DD OPFLEXLOGIC OPERANDS2 cycles20 cycles SRC1 VT FUSE FAIL OPFLEXLOGIC OPERANDSSRC1 VT FUSE FAIL DPOSRC1 VT FUSE FAIL VOL LOSSFLEXLOGIC OPERANDTIMEROPEN POLE OPThe OPEN POLE OP operand appliesto the D60, L60, and L90Neutral Wire Open DetectSETTINGEnabled = 1SOURCE 13V_0 (3rd Harmonic)SETTINGRun3V_0 3rd Harm >setting3 HARM PKPANDSRC1 3V0 3nd HarmonicFLEX-ANALOGAND 5 cycles0TIMERSRC1 VT NEU WIRE OPENFLEXLOGIC OPERANDORAND020 cyclesTIMER2 cycles0TIMER30 cycles0TIMERCOMPARATORSVAVBVCRun |VB|-|VB| > 0.2 pu& |VB| > 0.8 puRun |VA|-|VA| > 0.2 pu& |VA| > 0.8 puRun |VC|-|VC| > 0.2 pu& |VC| > 0.8 puORVA, VB and VC are thevoltage magnitude of onecycle before3
