5
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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Summary of Contents for GRL100-701B
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