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GE Multilin
L90 Line Current Differential System
5-237
5 SETTINGS
5.6 GROUPED ELEMENTS
5
Figure 5–125: AUXILIARY OVERVOLTAGE SCHEME LOGIC
5.6.15 SENSITIVE DIRECTIONAL POWER
PATH: SETTINGS
GROUPED ELEMENTS
SETTING GROUP 1(6)
POWER
SENSITIVE DIRECTIONAL POWER
DIRECTIONAL POWER 1(2)
The sensitive directional power element responds to three-phase directional power and is designed for reverse power and
low forward power applications for synchronous machines or interconnections involving co-generation. The relay measures
the three-phase power from either full set of wye-connected VTs or full-set of delta-connected VTs. In the latter case, the
two-wattmeter method is used. Refer to the
UR-series metering conventions
section in chapter 6 for details regarding the
active and reactive powers used by the sensitive directional power element.
The element has an adjustable characteristic angle and minimum operating power as shown in the
Directional power char-
acteristic
diagram. The element responds to the following condition:
(EQ 5.32)
DIRECTIONAL
POWER 1
DIR POWER 1
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
DIR POWER 1
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4
MESSAGE
DIR POWER 1
RCA: 0°
Range: 0 to 359° in steps of 1
MESSAGE
DIR POWER 1
CALIBRATION: 0.00°
Range: 0 to 0.95° in steps of 0.05
MESSAGE
DIR POWER 1 STG1
SMIN: 0.100 pu
Range: –1.200 to 1.200 pu in steps of 0.001
MESSAGE
DIR POWER 1 STG1
DELAY: 0.50 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
DIR POWER 1 STG2
SMIN: 0.100 pu
Range: –1.200 to 1.200 pu in steps of 0.001
MESSAGE
DIR POWER 1 STG2
DELAY: 20.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
DIR POWER 1 BLK:
Off
Range: FlexLogic operand
MESSAGE
DIR POWER 1
TARGET: Self-Reset
Range: Self-Reset, Latched, Disabled
MESSAGE
DIR POWER 1
EVENTS: Disabled
Range: Disabled, Enabled
827836A3.CDR
FLEXLOGIC OPERANDS
AUX OV1
FUNCTION:
AUX OV1 BLOCK:
AUX OV1 SIGNAL
SOURCE:
AUX OV1 PICKUP:
AUX OV1 DPO
AUX OV1 OP
AUX OV1 PKP
RUN
AND
SETTING
SETTING
AUX OV1 RESET
DELAY :
AUX OV1 PICKUP
DELAY :
SETTING
Enabled=1
t
PKP
t
RST
SETTING
SETTING
Off=0
AUXILIARY VOLT (Vx)
Vx Pickup
<
P
cos
Q
sin
+
SMIN
Summary of Contents for UR Series L90
Page 652: ...A 16 L90 Line Current Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 772: ...B 120 L90 Line Current Differential System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 802: ...C 30 L90 Line Current Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 812: ...D 10 L90 Line Current Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 824: ...E 12 L90 Line Current Differential System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 834: ...F 10 L90 Line Current Differential System GE Multilin F 3 WARRANTY APPENDIX F F ...
Page 846: ...xii L90 Line Current Differential System GE Multilin INDEX ...