⎯
125
⎯
6 F 2 S 0 8 4 6
Distance
Measuring
Busbar or line
voltages
Line or busbar
reference voltage
[VTPH - SEL]
"C"
"B"
"A"
+
+
+
Vref
Vc
Vb
Va
[VT - RATE]
"PH/G"
[3PH - VT]
"Line"
"Bus"
"PH/PH"
+
+
+
+
Voltage check
&
Synchronism check
Figure 2.6.2.4 Matching of Busbar Voltage and Line Voltage
Autoreclosing requirement
Using PLC function, various reclose requirements can be designed. In Figure 2.6.2.1, a reclose
requirement for "SPAR", "TPAR" or "SPAR&TPAR" can be respectively assigned to the
following signals by PLC:
"SPAR":
[SPR.L-REQ]
"TPAR":
[TPR.L-REQ]
"SPAR&TPAR": [SPR.L-REQ],
[TPR.L-REQ]
The default setting is as follows:
Reclose requirement
Default setting
Remarks
"SPAR"
[SPR.L-REQ] = CONSTANT_1
No condition
"TPAR"
[TPR.L-REQ] = SYP-ON
Voltage and synchronism check
Permanent fault
When reclose-onto-a-fault is activated when a permanent fault exists, three-phase final tripping is
performed. However, this operation is performed only in the single-shot autoreclose mode. In the
multi-shot autoreclose mode, reclosing is retried as described below.
Multi-shot autoreclose
In multi-shot autoreclose, low-speed autoreclose is executed up to three times after high-speed
autoreclose fails. The first shot is high-speed autoreclose that functions in the same manner as
described for single-shot autoreclose. Figure 2.6.2.5 shows the simplified scheme logic for the
low-speed autoreclose of the second to fourth shot.
The multi-shot mode, two to four shots, is set with the scheme switch [ARC-SM].
Содержание GRZ100 B Series
Страница 264: ... 263 6 F 2 S 0 8 4 6 Appendix A Block Diagram ...
Страница 271: ... 270 6 F 2 S 0 8 4 6 ...
Страница 272: ... 271 6 F 2 S 0 8 4 6 Appendix B Signal List ...
Страница 307: ... 306 6 F 2 S 0 8 4 6 ...
Страница 308: ... 307 6 F 2 S 0 8 4 6 Appendix C Variable Timer List ...
Страница 310: ... 309 6 F 2 S 0 8 4 6 Appendix D Binary Input Output Default Setting List ...
Страница 321: ... 320 6 F 2 S 0 8 4 6 ...
Страница 322: ... 321 6 F 2 S 0 8 4 6 Appendix E Details of Relay Menu and LCD Button Operation ...
Страница 331: ... 330 6 F 2 S 0 8 4 6 ...
Страница 340: ... 339 6 F 2 S 0 8 4 6 Appendix G Typical External Connections ...
Страница 377: ... 376 6 F 2 S 0 8 4 6 ...
Страница 384: ... 383 6 F 2 S 0 8 4 6 Appendix J Return Repair Form ...
Страница 388: ... 387 6 F 2 S 0 8 4 6 Customer Name Company Name Address Telephone No Facsimile No Signature ...
Страница 389: ... 388 6 F 2 S 0 8 4 6 ...
Страница 390: ... 389 6 F 2 S 0 8 4 6 Appendix K Technical Data ...
Страница 401: ... 400 6 F 2 S 0 8 4 6 ...
Страница 402: ... 401 6 F 2 S 0 8 4 6 Appendix L Symbols Used in Scheme Logic ...
Страница 405: ... 404 6 F 2 S 0 8 4 6 ...
Страница 406: ... 405 6 F 2 S 0 8 4 6 Appendix M Example of Setting Calculation ...
Страница 417: ... 416 6 F 2 S 0 8 4 6 ...
Страница 418: ... 417 6 F 2 S 0 8 4 6 Appendix N IEC60870 5 103 Interoperability and Troubleshooting ...
Страница 430: ... 429 6 F 2 S 0 8 4 6 Appendix O Programmable Reset Characteristics and Implementation of Thermal Model to IEC60255 8 ...
Страница 434: ... 433 6 F 2 S 0 8 4 6 Appendix P Inverse Time Characteristics ...
Страница 437: ... 436 6 F 2 S 0 8 4 6 ...
Страница 438: ... 437 6 F 2 S 0 8 4 6 Appendix Q Failed Module Tracing and Replacement ...
Страница 444: ... 443 6 F 2 S 0 8 4 6 Appendix R Ordering ...
Страница 447: ......