⎯
42
⎯
6 F 2 S 0 8 4 6
respond to a reclose-on-to-fault.
Fault inception
Closed
Circuit
breaker
Open
Auto
- reclose
Trip
REC-
READY1
Reclaim time
Reclaim time
Figure 2.4.2.3 Sequence Diagram of Zone 1 Extension
Zone 1 extension executes single-phase tripping and autoreclose for single-phase to earth faults
when the reclosing mode selection switch [ARC-M] is set to "SPAR & TPAR". A phase selection
element UVC and phase selection logic are used for reliable selection of the faulted phases. Phase
selection logic for zone 1X can be seen in Figure 2.4.1.7 by replacing zone 1 measuring elements
with zone 1X measuring elements.
Setting
The following table shows the setting elements necessary for zone 1 extension protection and their
setting ranges.
Element Range
Step Default Remarks
Z1XS
0.01 – 50.00
Ω
0.01
Ω
2.40
Ω
Zone 1 extension reach
(0.10 – 250.00
Ω
0.01
Ω
12.00
Ω
) (*)
Z1S
θ
1
0° - 45°
1°
0°
Gradient of reactance element
Z1S
θ
2
45° - 90°
1°
90°
BFRXS
0.10 - 20.00
Ω
0.01
Ω
5.10
Ω
Forward right blinder reach for Z1XS
(0.5 - 100.0
Ω
0.1
Ω
25.5
Ω
)
Required if [BLZONE]=IND
Z1XG
0.01 – 50.00
Ω
0.01
Ω
2.40
Ω
Zone 1 extension reach
(0.10 – 250.00
Ω
0.01
Ω
12.00
Ω
)
Z1G
θ
1
0° - 45°
1°
0°
Gradient of reactance element
Z1G
θ
2
45° - 90°
1°
90°
BFRXG
0.10 - 20.00
Ω
0.01
Ω
5.10
Ω
Forward right blinder reach for Z1XG
(0.5 - 100.0
Ω
0.1
Ω
25.5
Ω
)
Required if [BLZONE]=IND
PROTECTION
SCHEME
3ZONE/Z1EXT/PUP/POP/UOP/BOP/PO
P+DEF/UOP+DEF/BOP+DEF/ PUP+DEF
POP Scheme
selection
Autoreclose mode
(ARC – M)
Disabled/SPAR/TPAR/
SPAR & TPAR/EXT1P/EXT3P
SPAR & TPAR Autoreclose mode selection
"SPAR" or "SPAR & TPAR" should be selected
BLZONE
COM/IND
COM
Common or independent setting for blinder
PSB - Z1X
OFF/ON
ON
Power swing blocking
(*) Ohmic values shown in the parentheses are in the case of 1 A rating. Other ohmic values are in the
case of 5 A rating.
The reach for zone 1 extension is set, for example, to 120% so as to completely cover the protected
line. It is not necessary to set the earth fault compensation factors because the same compensation
factors as those of zone 1 and zone 2 are used. The reach is set on the X-axis.
When the reactance element characteristic of zone 1 takes a broken line, that of zone 1 extension
follows it automatically.
When using zone 1 extension protection, either "SPAR & TPAR" or "TPAR" must be selected as
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: ......