Post Fault Recording Time And Number Of Disturbance Records Stored - Toshiba GRE110 Instruction Manual

shows 100 records. All event records (200 records) can be displayed on a PC. For how to obtain all
event records on the PC , see the PC software instruction manual.
3.4.3 Disturbance Recording
Disturbance recording is started when the overcurrent starter element operates or a tripping
command is initiated. The records include maximum four analogue signals (I a , I b , I c, I e ), 32 binary
signals and the dates and times at which recording started. Any binary signal shown in Appendix B
can be assigned by the binary signal setting of disturbance record.
The LCD display only shows the dates and times of disturbance records stored. Details can be
displayed on a PC. For how to obtain disturbance records on the PC, see the PC software
instruction manual.
The pre-fault recording time can be set between 0.1 and 4.9s and post-fault recording time can be
set between 0.1 and 4.9s. But the total of pre-fault recording time and post-fault recording time is
5.0s or less. The number of records stored depends on the post-fault recording time. The
approximate relationship between the post-fault recording time and the number of records stored is
shown in Table 3.4.2. (Recording time = pre-fault recording time + post-fault recording time)
Note: If the recording time setting is changed, the records stored so far are deleted.
Table 3.4.2 Post Fault Recording Time and Number of Disturbance Records Stored
Recording time
50Hz
60Hz
Settings
The elements necessary for initiating a disturbance recording and their setting ranges are shown in
the table below.
Element Range
Time1 0.1-4.9 s
Time2 0.1-4.9 s
OC 0.10-150.00 A
EF 0.05-100.00 A
SE 0.025-2.500 A
NPS 0.10-10.00 A
Starting the disturbance recording by a tripping command or the starter element listed above is
enabled or disabled by setting the following scheme switches.
Element
[Trip]
[BI]
[OC]
[EF]
[SEF]
[NPS]
0.2s 1.0s 1.5s
40 29 19
40 24 16
Step Default
0.1 s 0.3
0.1 s 3.0
0.01 A 2.00 A
0.01 A 0.60 A
0.001 A 0.200 A
0.01 A 0.40 A
Range Step Default
OFF/ON ON
OFF/ON ON
OFF/ON ON
OFF/ON ON
OFF/ON ON
OFF/ON ON
 77 
2.0s 3.0s 4.0s 5.0s
14 9 7 5
12 8 6 5
Remarks
Pre-fault recording time
Post-fault recording time
Overcurrent detection
Earth fault detection
Sensitive earth fault detection
Negative sequence overcurrent detection
Remarks
Start by tripping command
Start by Binary Input signal
Start by OC operation
Start by EF operation
Start by SEF operation
Start by NPS operation
6 F 2 T 0 1 7 2