Toshiba GRL100-701B, Инструкция по эксплуатации, Страница: 6 / 473

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6 F 2 S 0 8 5 0
2.13.3 Setting 110
2.14 Tripping Output 111
2.15 Autoreclose 113
2.15.1 Application 113
2.15.2 Scheme Logic 115
2.15.3 Autoreclose Output Signals 131
2.16 Characteristics of Measuring Elements 132
2.16.1 Segregated-phase Current Differential Element DIF and DIFSV 132
2.16.2 Zero-phase Current Differential Element DIFG 133
2.16.3 Distance Measuring Elements Z1, Z2, Z3, Z4, ZR and PSB 134
2.16.4 Phase Selection Element UVC 142
2.16.5 Directional Earth Fault Elements DEFF and DEFR 143
2.16.6 Inverse Definite Minimum Time (IDMT) Overcurrent Element OCI and
EFI
144
2.16.7 Thermal Overload Element 145
2.16.8 Out-of-Step Element OST 145
2.16.9 Voltage and Synchronism Check Elements OVL, UVL, OVB, UVB and
SYN
146
2.16.10 Current change detection elements OCD, OCD1 and EFD 147
2.16.11 Level Detectors 147
2.17 Fault Locator 149
2.17.1 Application 149
2.17.2 Starting Calculation 149
2.17.3 Displaying Location 149
2.17.4 Distance to Fault Calculation 150
2.17.5 Setting 154
3. Technical Description 158
3.1 Hardware Description 158
3.1.1 Outline of Hardware Modules 158
3.1.2 Transformer Module 161
3.1.3 Signal Processing and Communication Module 162
3.1.4 Binary Input and Output Module 163
3.1.5 Human Machine Interface (HMI) Module 167
3.2 Input and Output Signals 169
3.2.1 Input Signals 169
3.2.2 Binary Output Signals 172
3.2.3 PLC (Programmable Logic Controller) Function 172
3.3 Automatic Supervision 173
3.3.1 Basic Concept of Supervision 173
3.3.2 Relay Monitoring 173
3.3.3 CT Circuit Current Monitoring 174
3.3.4 CT Circuit Failure Detection 175
3.3.5 Voltage Transformer Failure Supervision 175
3.3.6 Differential Current (Id) Monitoring 177
3.3.7 Telecommunication Channel Monitoring 178
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