5-152 F60 Feeder Protection System GE Multilin5.6 GROUPED ELEMENTS 5 SETTINGS55.6.6 WATTMETRIC GROUND FAULTa) WATTMETRIC ZERO-SEQUENCE DIRECTIONAL (ANSI 32N)PATH: SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) WATTMETRIC... WATTMETRIC GROUND FAULT 1(2)The wattmetric zero-sequence directional element responds to power derived from zero-sequence voltage and current in adirection specified by the element characteristic angle. The angle can be set within all four quadrants and the power can beactive or reactive. Therefore, the element may be used to sense either forward or reverse ground faults in either inductive,capacitive or resistive networks. The inverse time characteristic allows time coordination of elements across the network.Typical applications include ground fault protection in solidly grounded transmission networks, grounded/ungrounded/resis-tor-grounded/resonant-grounded distribution networks, or for directionalizing other non-directional ground elements.• WATTMETRIC GND FLT 1 VOLT: The element uses neutral voltage (that is, three times the zero-sequence voltage).This setting allows selecting between the internally calculated neutral voltage, or externally supplied voltage (brokendelta VT connected to the auxiliary channel bank of the relay). When the latter selection is made, the auxiliary channelmust be identified by the user as a neutral voltage under the VT bank settings. This element will operate only if theauxiliary voltage is configured as neutral. WATTMETRIC GROUND FAULT 1WATTMETRIC GND FLT 1FUNCTION: DisabledRange: Disabled, EnabledMESSAGE WATTMETRIC GND FLT 1SOURCE: SRC 1Range: SRC 1, SRC 2, SRC 3, SRC 4MESSAGE WATTMETRIC GND FLT 1VOLT: Calculated VNRange: Calculated VN, Measured VXMESSAGE WATTMETRIC GND FLT 1OV PKP: 0.20 puRange: 0.02 to 3.00 pu in steps of 0.01MESSAGE WATTMETRIC GND FLT 1CURR: Calculated INRange: Calculated IN, Measured IGMESSAGE WATTMETRIC GND FLT 1OC PKP: 0.060 puRange: 0.002 to 30.000 pu in steps of 0.001MESSAGE WATTMETRIC GND FLT 1OC PKP DEL: 0.20 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE WATTMETRIC GND FLT 1PWR PKP: 0.100 puRange: 0.001 to 1.200 pu in steps of 0.001MESSAGE WATTMETRIC GND FLT 1REF PWR: 0.500 puRange: 0.001 to 1.200 pu in steps of 0.001MESSAGE WATTMETRIC GND FLT 1ECA: 0° LagRange: 0 to 360° Lag in steps of 1MESSAGE WATTMETRIC GND FLT 1PWR PKP DEL: 0.20 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE WATTMETRIC GND FLT 1CURVE: Definite TimeRange: Definite Time, Inverse, FlexCurves A through DMESSAGE WATTMETRIC GND FLT 1MULTIPLIER: 1.00 sRange: 0.01 to 2.00 s in steps of 0.01MESSAGE WATT GND FLT 1 BLK:OffRange: FlexLogic™ operandMESSAGE WATTMETRIC GND FLT 1TARGET: Self-resetRange: Self-reset, Latched, DisabledMESSAGE WATTMETRIC GND FLT 1EVENTS: DisabledRange: Disabled, Enabled
