CHAPTER 5: SETTINGS GROUPED ELEMENTSC70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 5-2035There are three phase overvoltage elements available. A phase overvoltage element is used as an instantaneous elementwith no intentional time delay or as a definite time element. The input voltage is the phase-to-phase voltage, eithermeasured directly from delta-connected VTs or as calculated from phase-to-ground (wye) connected VTs. The figureshows specific voltages to be used for each phase.Figure 5-102: Phase overvoltage logic5.7.8.4 Neutral overvoltage (ANSI 59N, IEC PTOV)SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) VOLTAGE ELEMENTS NEUTRAL OV1(3) PHASE OV1 BLOCK:OffRange: FlexLogic Operand PHASE OV1TARGET: Self-resetRange: Self-reset, Latched, Disabled PHASE OV1EVENTS: DisabledRange: Disabled, EnabledNOTEIf the source VT is wye-connected, then the phase overvoltage pickup condition is for VAB , V BC,and VCA . NEUTRAL OV1 NEUTRAL OV1FUNCTION: DisabledRange: Disabled, Enabled NEUTRAL OV1 SIGNALSOURCE: SRC 1Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6 NEUTRAL OV1 PICKUP:0.300 puRange: 0.000 to 3.000 pu in steps of 0.001 NEUTRAL OV1 CURVE:Definite timeRange: Definite time, FlexCurve A, FlexCurve B,FlexCurve C NEUTRAL OV1 PICKUP:DELAY: 1.00 sRange: 0.00 to 600.00 s in steps of 0.01 NEUTRAL OV1 RESET:DELAY: 1.00 sRange: 0.00 to 600.00 s in steps of 0.01 NEUTRAL OV1 BLOCK:OffRange: FlexLogic operandPHASE OV1SOURCE:Source VT = DeltaSource VT = WyeVABVBCVCAPHASE OV1 A PKPPHASE OV1 B PKPPHASE OV1 C PKPPHASE OV1 OPPHASE OV1 A DPOPHASE OV1 B DPOPHASE OV1 C DPOPHASE OV1 A OPPHASE OV1 B OPPHASE OV1 C OPPHASE OV1 DPOANDPHASE OV1FUNCTION:Disabled = 0Enabled = 1SETTINGPHASE OV1BLOCK:Off = 0SETTINGSETTINGPHASE OV1PICKUP:SETTINGFLEXLOGIC OPERANDSFLEXLOGIC OPERANDFLEXLOGIC OPERAND827066A7.CDRRUNVAB PICKUP≥RUNVBC PICKUP≥RUNVCA PICKUP≥ANDORPHASE OV1 PKPFLEXLOGIC OPERANDORPHASE OV1 RESETDELAY:SETTINGStPKPtPKPtPKPtRSTtRSTtRSTPHASE OV1 PICKUPDELAY:V 3 Pickup×>
