Wattmetric Ground Fault - GE F60 Instruction Manual

5.6 GROUPED ELEMENTS
a) WATTMETRIC ZERO-SEQUENCE DIRECTIONAL (ANSI 32N, IEC PSDE)
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PATH: SETTINGS GROUPED ELEMENTS
 WATTMETRIC
 GROUND FAULT 1
5
The wattmetric zero-sequence directional element responds to power derived from zero-sequence voltage and current in a
direction specified by the element characteristic angle. The angle can be set within all four quadrants and the power can be
active 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 (broken
delta VT connected to the auxiliary channel bank of the relay). When the latter selection is made, the auxiliary channel
must be identified by the user as a neutral voltage under the VT bank settings. This element operates when the auxil-
iary voltage is configured as neutral.
5-190
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SETTING GROUP 1(6)
WATTMETRIC GND FLT 1
FUNCTION: Disabled
WATTMETRIC GND FLT 1
MESSAGE
SOURCE: SRC 1
WATTMETRIC GND FLT 1
MESSAGE
VOLT: Calculated VN
WATTMETRIC GND FLT 1
MESSAGE
OV PKP: 0.20 pu
WATTMETRIC GND FLT 1
MESSAGE
CURR: Calculated IN
WATTMETRIC GND FLT 1
MESSAGE
OC PKP: 0.060 pu
WATTMETRIC GND FLT 1
MESSAGE
OC PKP DEL: 0.20 s
WATTMETRIC GND FLT 1
MESSAGE
PWR PKP: 0.100 pu
WATTMETRIC GND FLT 1
MESSAGE
REF PWR: 0.500 pu
WATTMETRIC GND FLT 1
MESSAGE
ECA: 0° Lag
WATTMETRIC GND FLT 1
MESSAGE
PWR PKP DEL: 0.20 s
WATTMETRIC GND FLT 1
MESSAGE
CURVE: Definite Time
WATTMETRIC GND FLT 1
MESSAGE
MULTIPLIER: 1.00 s
WATT GND FLT 1 BLK:
MESSAGE
Off
WATTMETRIC GND FLT 1
MESSAGE
TARGET: Self-reset
WATTMETRIC GND FLT 1
MESSAGE
EVENTS: Disabled
F60 Feeder Protection System

5.6.6 WATTMETRIC GROUND FAULT

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WATTMETRIC... WATTMETRIC GROUND FAULT 1(2)
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: Calculated VN, Measured VX
Range: 0.02 to 3.00 pu in steps of 0.01
Range: Calculated IN, Measured IG
Range: 0.002 to 30.000 pu in steps of 0.001
Range: 0.00 to 600.00 s in steps of 0.01
Range: 0.001 to 1.200 pu in steps of 0.001
Range: 0.001 to 1.200 pu in steps of 0.001
Range: 0 to 360° Lag in steps of 1
Range: 0.00 to 600.00 s in steps of 0.01
Range: Definite Time, Inverse, FlexCurves A through D
Range: 0.01 to 2.00 s in steps of 0.01
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5 SETTINGS
GE Multilin