GE UR Series Instruction Manual page 100

5.2 PRODUCT SETUP
The trigger can be any FlexLogic™ operand, but in most applications it is expected to be the same operand, usually a vir-
tual output, that is used to drive an output relay to trip a breaker. To prevent the over-writing of fault events, the disturbance
detector should not be used to trigger a fault report.
If a number of protection elements are ORed to create a fault report trigger, the first operation of any element causing the
OR gate output to become high triggers a fault report. However, If other elements operate during the fault and the first oper-
ated element has not been reset (the OR gate output is still high), the fault report is not triggered again. Considering the
reset time of protection elements, there is very little chance that fault report can be triggered twice in this manner. As the
fault report must capture a usable amount of pre and post-fault data, it can not be triggered faster than every 20 ms.
Each fault report is stored as a file; the relay capacity is ten files. An eleventh trigger overwrites the oldest file. The operand
selected as the fault report trigger automatically triggers an oscillography record which can also be triggered independently.
URPC is required to view all captured data. The relay faceplate display can be used to view the date and time of trigger, the
fault type, the distance location of the fault, and the reclose shot number
The
FAULT REPORT SOURCE
setting assigns the FlexLogic™ operand representing the protection element/elements requiring operational
REPORT TRIG
fault location calculations. The distance to fault calculations are initiated by this signal.
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See also
SETTINGS SYSTEM SETUP
Ö
menu.
FAULT REPORTS
Ö
PATH: SETTINGS PRODUCT SETUP
„
OSCILLOGRAPHY
„
5
NUMBER OF RECORDS:
15
TRIGGER MODE:
Automatic Overwrite
TRIGGER POSITION:
50%
TRIGGER SOURCE:
Off
AC INPUT WAVEFORMS:
16 samples/cycle
„
DIGITAL CHANNELS
„
„
ANALOG CHANNELS
„
5-16
setting selects the Source for input currents and voltages and disturbance detection. The
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menu for specifying line characteristics and the
LINE
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OSCILLOGRAPHY
Range: 1 to 64 in steps of 1
Range: Automatic Overwrite, Protected
Range: 0 to 100 in steps of 1
Range: FlexLogic™ operand
Range: Off; 8, 16, 32, 64 samples/cycle
Range: 2 to 63 channels
DIGITAL CHANNEL 2:
Off
↓
DIGITAL CHANNEL 63:
Off
Range: 1 to 16 channels
ANALOG CHANNEL 1:
Off
↓
ANALOG CHANNEL 16:
Off
L90 Line Differential Relay
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: Off, any analog Actual Value parameter
Range: Off, any analog Actual Value parameter
5 SETTINGS
FAULT
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ACTUAL VALUES RECORDS
5.2.7 OSCILLOGRAPHY
GE Power Management