6-24
Reporting and Alarm Functions
BE1-951
do not change over the length specified. For a non-homogenous line, the distance would need to be
manually corrected.
The distance to fault results are limited to +/- 300% of the specified line length. This is used to prevent
erroneous results from being displayed for non-over current type faults, such as over or under voltage faults.
A computed value greater than maximum line length is reported as N/A.
Fault Summary Reports
The BE1-951 records information about faults and creates fault summary reports. A maximum of 16 fault
summary reports are stored in the relay. The two most recent reports are stored in nonvolatile memory.
When a new fault summary report is generated, the relay discards the oldest of the 16 events and replaces
it with a new one. Each fault summary report is assigned a sequential number (from 1 to 255) by the relay.
After event number 255 has ben assigned, the numbering starts over at 1.
Fault Summary Report Example
A fault summary report collects several items of information about a fault that can aid in determining why a
fault occurred without having to sort through all of the detailed information available. The following example
illustrates a typical fault summary report. Call-outs shown in the report are references to the legend of Table
6-7.
Fault Summary Report Example
RF-1
Fault Date and Time. These lines report the date and time of the initial trigger of the event. This is based on
either the pickup logic expression or the logic trigger expression becoming TRUE as defined by the
SG-TRIGGER command. Refer to Figure 6-1 and Table 6-7, call-out A.
Station ID and Relay ID. These lines report station and device identifier information as defined by the SG-ID
command.
