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Contents
Safety Precautions
1
1.
Introduction 8
2.
Application Notes
10
2.1
Protection schemes
10
2.2
Current Differential Protection
10
2.2.1
Operation of Current Differential Protection
11
2.2.2
Characteristic of Current Differential Element DIF
12
2.2.3
Fail-safe Function
13
2.2.4
Open Terminal (Out-of-Service) Detection
14
2.2.5
Transmission Data
15
2.2.6
Synchronized Sampling
16
2.2.7
Telecommunication Circuit
16
2.2.8
Telecommunication Channel Monitoring
17
2.2.9
Setting
17
2.3
Phase Fault Overcurrent Protection
20
2.3.1
Inverse Time (IDMT) Operation
20
2.3.2
Scheme Logic
23
2.3.3
Setting
25
2.4
Earth Fault Protection
28
2.4.1
Scheme Logic
28
2.4.2
Setting
29
2.5
Sensitive Earth Fault Protection
31
2.5.1
Scheme Logic
31
2.5.2
Setting
33
2.6
Phase Undercurrent Protection
34
2.6.1
Scheme Logic
34
2.6.2
Setting
35
2.7
Thermal Overload Protection
36
2.7.1
Scheme Logic
37
2.7.2
Setting
38
2.8
Broken Conductor Protection
39
2.8.1
Scheme Logic
40
2.8.2
Setting
41
2.9
Breaker Failure Protection
42
2.9.1
Scheme Logic
42
2.9.2
Setting
44
2.10
Countermeasures for Magnetising Inrush
45
2.10.1 Inrush Current Detector
45
2.10.2 Cold Load Protection
46
2.10.2 Setting
48
2.11
Transfer Trip Function
49
Содержание GRL150-100 Series
Страница 149: ... 148 6 F 2 S 0 8 2 8 ...
Страница 150: ... 149 6 F 2 S 0 8 2 8 Appendix A Programmable Reset Characteristics and Implementation of Thermal Model to IEC60255 8 ...
Страница 154: ... 153 6 F 2 S 0 8 2 8 Appendix B Signal List ...
Страница 180: ... 179 6 F 2 S 0 8 2 8 Appendix C Binary Output Default Setting List ...
Страница 182: ... 181 6 F 2 S 0 8 2 8 Appendix D Details of Relay Menu ...
Страница 195: ... 194 6 F 2 S 0 8 2 8 ...
Страница 196: ... 195 6 F 2 S 0 8 2 8 Appendix E Case Outline ...
Страница 199: ... 198 6 F 2 S 0 8 2 8 ...
Страница 200: ... 199 6 F 2 S 0 8 2 8 Appendix F Typical External Connections ...
Страница 223: ... 222 6 F 2 S 0 8 2 8 ...
Страница 228: ... 227 6 F 2 S 0 8 2 8 Appendix I Return Repair Form ...
Страница 232: ... 231 6 F 2 S 0 8 2 8 Appendix J Technical Data ...
Страница 238: ... 237 6 F 2 S 0 8 2 8 Appendix K Symbols Used in Scheme Logic ...
Страница 241: ... 240 6 F 2 S 0 8 2 8 ...
Страница 242: ... 241 6 F 2 S 0 8 2 8 Appendix L Inverse Time Characteristics ...
Страница 248: ... 247 6 F 2 S 0 8 2 8 Appendix M IEC60870 5 103 Interoperability ...
Страница 260: ... 259 6 F 2 S 0 8 2 8 Appendix N Resistor Box Option ...
Страница 263: ... 262 6 F 2 S 0 8 2 8 ...
Страница 264: ... 263 6 F 2 S 0 8 2 8 Appendix O Ordering ...
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