⎯
54
⎯
6 F 2 S 0 8 4 6
The echo function can be disabled by the scheme switch [ECHO] and the PLC signal
ECHO_BLOCK.
The setting element necessary for the echo function and its setting range is as follows:
Element Range
Step
Default
Remarks
TECCB
0.00 – 200.00 s 0.01 s
0.10 s
Echo enable timer
ECHO OFF/ON
ON Echo
function
" ON "
&
&
&
≥
1
200ms
50ms
(+)
t
0
Z3
Z2
Z4
T2
T1
250ms
0
t
0
t
ECH
[ZONESEL]
"Z3"
"Z2"
ECH
[ECHO]
1
CB-OR
≥
1
R1-CR
1
&
TECCB
0.00 - 200.00s
t 0
619:C/R_DISECHO
ECHO_BLOCK
1840
1
Figure 2.4.3.5 Echo Logic
Figure 2.4.3.6 shows the scheme logic of the weak infeed trip function. Weak infeed tripping is
executed on condition that a trip permission signal has been received (R1-CR=1) for the POP, and
reception of a trip block signal has stopped (R1-CR=0) for the UOP, the undervoltage element
UVL (UVLS or UVLG) operates and neither forward overreaching zone 2 or zone 3 nor reverse
looking Z4 operates.
WKIT_BLOCK
1841
WIT
&
WIT
[ZONESEL]
250ms
0 t
"Z3"
"Z2"
[WKIT]
"ON"
(+)
Z4
Z3
Z2
UVL
R1-CR
1
≥
1
&
CB-OR
213:WI_TRIP
1
Figure 2.4.3.6 Weak Infeed Trip Logic
The undervoltage element responds to three phase-to-phase voltages and three phase-to-ground
voltages. The undervoltage element prevents false weak infeed tripping due to spurious operation
of the channel.
Single-phase tripping or three-phase tripping is also applicable to weak infeed tripping according
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: ......