Records; Fault Reports - GE L90 Instruction Manual

CHAPTER 6: ACTUAL VALUES

6.5 Records

6.5.1 Fault reports

ACTUAL VALUES  RECORDS  FAULT REPORTS  FAULT REPORT 1(15)
NO FAULTS TO REPORT
or
 FAULT REPORT 1

The latest 15 fault reports can be stored. The most recent fault location calculation (when applicable) is displayed in this
menu, along with the date and time stamp of the event which triggered the calculation. See the
menu for assigning the source and trigger for fault calculations. See the
SETUP  FAULT REPORTS
menu for manual clearing of the fault reports and to the
RECORDS
menu for automated clearing of the fault reports.
The faulted segment of the line is indicated when the synchronized voltage and currents method is used. When the faulted
segment cannot be determined, the
location (distance to the fault) is reported as seen from the terminal adjacent to the fault. A FlexAnalog, Faulted Segment,
is linked to
FAULT 1 FAULTED SEGMENT
2, and Remote 2 as 3. In the three-terminal application, if the fault is identified between the local terminal and the tap
point, the operand
TAP-LOCAL FAULT
The displays the fault resistance at the fault point, which is shown in the secondary ohms. The
FAULT 1 FAULT RESIST
calculation is explained in the Theory of Operation chapter.
The
FAULT 1 LOOP RESISTANCE
method is applied, the fault loop impedance is calculated as the summation of fault resistance and faulted portion of the
line positive sequence impedance. The fault loop resistance is calculated by
The fault loop reactance is calculated by
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
FAULT 1

LINE ID: SRC 1
FAULT 1 DATE:

2000/08/11
FAULT 1 TIME:

00:00:00.000000
FAULT 1 TYPE:

ABG
FAULT 1 LOCATION

00.0 km
FAULT 1 FAULTED

SEGMENT: Local
FAULT 1 RECLOSE

SHOT: 0
FAULT 1 LOOP

RESIST: 0.00 Ohms
FAULT 1 LOOP

REACT: 0.00 Ohms
FAULT 1 FAULT

RESIST: 0.00 Ohms
FAULT 1 FAULTED SEGMENT
, to indicate the faulted segment, where N/A is denoted as 0, Local as 1, Remote 1 as
is then asserted high at the local relay.
and are expressed in secondary ohms. When the multi-ended fault location
REACTANCE
R = R + D
loop F pu
X = D x Imag(Z
loop pu
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: YYYY/MM/DD
Range: HH:MM:SS.ssssss
Range: not available if the source VTs are in the
"Delta" configuration
Range: not available if the source VTs are in the
"Delta" configuration
Range: N/A, Local (two-terminal configuration and local
section for three-terminal), Remote 1, Remote 2 (three-
terminal configuration only)
Range: where applicable
Range: 0 to 327.67 Ohms
Range: -327.67 to 327.67 Ohms
Range: 0 to 327.67 Ohms
SETTINGS  PRODUCT SETUP  CLEAR RELAY RECORDS
value displays "N/A". For three-terminal lines, the fault
x Real(Z )
1
)
1
RECORDS
SETTINGS  PRODUCT
COMMANDS  CLEAR
Eq. 6-7
Eq. 6-8
6-29
6