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61
⎯
6 F 2 S 0 8 4 6
2.4.4.1 Directional Earth Fault Command Protection
High-speed directional earth fault command protection is provided using the forward looking
directional earth fault element DEFF and reverse looking directional earth fault element DEFR.
The signaling channel of DEF command protection can be shared with or separated from distance
protection by the scheme switch [CH-DEF].
The DEF command protections are applied in combination with the distance command protection
POP, UOP, BOP and PUP and enabled when the scheme switch [SCHEME] is set to "POP+DEF",
"UOP+DEF", "BOP+DEF" or "PUP+DEF". These protections are called as the DEF POP, DEF
UOP, DEF BOP and DEF PUP hereafter. The POP, UOP or BOP schemes can be selected as a
common scheme. However, in the DEF PUP, distance protection takes the PUP scheme but DEF
command protection takes the POP scheme and signaling channels of distance and DEF command
protections are always separated (CH1: distance, CH2: DEF, see Section 2.4.3.9.).
The DEF command protection can select fast tripping or delayed tripping by a timer setting.
Delayed tripping is used when it is desired to give priority to distance protection.
The DEF command protection is blocked during a single-phase autoreclose period by the distance
protection (CB-DISCR=1). The signal CB-DISCR is generated with the binary input signals (PLC
signals) of circuit breaker auxiliary contact (refer to Section 3.2.1).
"POP+DEF"
"UOP+DEF"
"BOP+DEF"
"PUP+DEF"
DEFFCR
DEFR
DEFF
NON VTF
&
CB-DISCR
TDEFF
t
0
[SCHEME]
&
TDEFR
t
0
0 – 300ms
DEFRCR
216
215
Figure 2.4.4.2 DEF Command Protection
DEF POP, DEF UOP and DEF PUP scheme logic
Figure 2.4.4.3 shows the scheme logic of the DEF POP and DEF UOP.
(UOP)
&
≥
1
20ms
t 0
(UOP)
(POP)
TDEFR
0 - 300ms
S-TRIP
M-TRIP
&
1
≥
1
t 0
t 0
R1-CR-DEF
R1-CR-DEF
CS
CS
DEFF
DEFR
1
TDEFF
(POP)
&
TREBK
0.01 – 10.00s
0 t
TSBCT
0.00 – 1.00s
0
t
R1-CR-DEF: Trip permission signal from the remote terminal.
Signal No. Signal name Description
1568: EXT_CAR.R1-1 Trip carrier signal from remote terminal
1569: EXT_CAR.R1-2 Guard/And carrier signal from remote terminal
CS (Carrier send) signal
Signal No. Signal name
225: EXT_CAR-S for Distance and DEF command protection (CH1)
338: EXT_DEFCAR-S for DEF command protection (CH2)
&
≥
1
0-50ms
0
t
TCHD
&
PSCM_TCHDEN
1842
Figure 2.4.4.3 DEF POP and DEF UOP Scheme Logic
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: ......