
⎯
75
⎯
6 F 2 S 0 8 4 6
Overvoltage Inverse Time
Curves
0.100
1.000
10.000
100.000
1000.000
1
1.5
2
2.5
3
Applied Voltage (x Vs)
O
p
er
at
in
g
T
im
e
(
s
e
cs)
T MS = 1
T MS = 2
T MS = 5
T MS = 10
Figure 2.4.9.1 IDMT Characteristic
Scheme Logic
Figures 2.4.9.2 and 2.4.9.4 show the scheme logic of the OVS1 and OVG1 overvoltage protection
with selective definite time or inverse time characteristic. The definite time protection is selected
by setting [OV
∗
1EN] to “DT”, and trip signal OV
∗
1_TRIP is given through the delayed pick-up
timer TO
∗
1. The inverse time protection is selected by setting [OV
∗
1EN] to “IDMT”, and trip
signal OV
∗
1_TRIP is given.
The OVS1 and OVG1 protections can be disabled by the scheme switch [OV
∗
1EN] or the PLC
signal OV
∗
1_BLOCK.
These protections are available to trip instantaneously by the PLC signal OV
∗
1_INST_TP except
for [OV
∗
1EN]=“OFF” setting.
Figures 2.4.9.3 and 2.4.9.5 show the scheme logic of the OVS2 and OVG2 protection with definite
time characteristic. The OV
∗
2 gives the PLC signal OV
∗
2_ALARM through delayed pick-up
timer TO
∗
2.
The OV
∗
2_ALARM can be blocked by incorporated scheme switch [OV
∗
2EN] and the PLC
signal OV
∗
2_BLOCK.
These protections are also available to alarm instantaneously by the PLC signal OV
∗
2_INST_TP.
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: ......