5-200 D60 Line Distance Protection System GE Multilin5.6 GROUPED ELEMENTS 5 SETTINGS5e) NEGATIVE SEQUENCE OVERVOLTAGE (ANSI 59_2)PATH: SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) VOLTAGE ELEMENTS NEG SEQ OV1(3)There are three negative-sequence overvoltage elements available.The negative-sequence overvoltage element may be used to detect loss of one or two phases of the source, a reversedphase sequence of voltage, or a non-symmetrical system voltage condition.Figure 5–113: NEGATIVE-SEQUENCE OVERVOLTAGE SCHEME LOGIC NEG SEQ OV1NEG SEQ OV1FUNCTION: DisabledRange: Disabled, EnabledMESSAGE NEG SEQ OV1 SIGNALSOURCE: SRC 1Range: SRC 1, SRC 2, SRC 3, SRC 4MESSAGE NEG SEQ OV1 PICKUP:0.300 puRange: 0.000 to 1.250 pu in steps of 0.001MESSAGE NEG SEQ OV1 PICKUPDELAY: 0.50 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE NEG SEQ OV1 RESETDELAY: 0.50 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE NEG SEQ OV1 BLOCK:OffRange: FlexLogic™ operandMESSAGE NEG SEQ OV1 TARGET:Self-resetRange: Self-reset, Latched, DisabledMESSAGE NEG SEQ OV1 EVENTS:DisabledRange: Disabled, EnabledSETTINGSETTINGSFLEXLOGIC OPERANDSSETTINGSETTINGNEG SEQ OV1FUNCTION:NEG SEQ OV1 RESETDELAY:NEG SEQ OV1 PICKUPDELAY:NEG SEQ OV1 PKPNEG SEQ OV1 DPONEG SEQ OV1 OPNEG SEQ OV1 BLOCK:Disabled = 0Off = 0Enabled = 1NEG SEQ OV1 SIGNALSOURCE:Wye VT Delta VTV_2 827839A3.CDRANDSETTINGNEG SEQ OV1 PICKUP:V_2 or 3 × V_2 PKP≥RUNttPKPRST3 × V_2
