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6 F 2 T 0 1 7 2
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 (Ia, Ib, Ic, Ie), 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 0.2s
1.0s
1.5s
2.0s
3.0s
4.0s
5.0s
50Hz
40
29
19
14
9
7
5
60Hz
40
24
16
12
8
6
5
Settings
The elements necessary for initiating a disturbance recording and their setting ranges are shown in
the table below.
Element
Range
Step
Default
Remarks
Time1
0.1-4.9 s
0.1 s
0.3
Pre-fault recording time
Time2
0.1-4.9 s
0.1 s
3.0
Post-fault recording time
OC
0.10-150.00 A
0.01 A
2.00 A
Overcurrent detection
EF
0.05-100.00 A
0.01 A
0.60 A
Earth fault detection
SE
0.025-2.500 A
0.001 A
0.200 A
Sensitive earth fault detection
NPS
0.10-10.00 A
0.01 A
0.40 A
Negative sequence overcurrent detection
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 Range
Step
Default
Remarks
[Trip]
OFF/ON
ON
Start by tripping command
[BI]
OFF/ON
ON
Start by Binary Input signal
[OC]
OFF/ON
ON
Start by OC operation
[EF]
OFF/ON
ON
Start by EF operation
[SEF]
OFF/ON
ON
Start by SEF operation
[NPS]
OFF/ON
ON
Start by NPS operation
77
Summary of Contents for GRE110
Page 183: ...6 F 2 T 0 1 7 2 Appendix B Signal List 184 ...
Page 191: ...6 F 2 T 0 1 7 2 Appendix C Event Record Items 192 ...
Page 196: ...6 F 2 T 0 1 7 2 Appendix D Binary Output Default Setting List 197 ...
Page 199: ...6 F 2 T 0 1 7 2 Appendix E Relay Menu Tree 200 ...
Page 210: ...6 F 2 T 0 1 7 2 Appendix F Case Outline 211 ...
Page 211: ...6 F 2 T 0 1 7 2 Case Outline for model 400 401 420 421 820 and 821 212 ...
Page 212: ...6 F 2 T 0 1 7 2 Case Outline for model 402 and 422 213 ...
Page 213: ...6 F 2 T 0 1 7 2 Appendix G Typical External Connection 214 ...
Page 245: ...6 F 2 T 0 1 7 2 Appendix J Return Repair Form 246 ...
Page 249: ...6 F 2 T 0 1 7 2 Customer Name Company Name Address Telephone No Facsimile No Signature 250 ...
Page 250: ...6 F 2 T 0 1 7 2 Appendix K Technical Data 251 ...
Page 256: ...6 F 2 T 0 1 7 2 Appendix L Symbols Used in Scheme Logic 257 ...
Page 259: ...6 F 2 T 0 1 7 2 Appendix M Modbus Interoperability 260 ...
Page 289: ...6 F 2 T 0 1 7 2 Appendix N IEC60870 5 103 Interoperability 290 ...
Page 296: ...6 F 2 T 0 1 7 2 Appendix O PLC Default setting 297 ...
Page 298: ...6 F 2 T 0 1 7 2 Appendix P Inverse Time Characteristics 299 ...
Page 304: ...6 F 2 T 0 1 7 2 Appendix Q IEC61850 Interoperability 305 ...