Siemens SIPROTEC 4 User Manual

2.7.2 Inverse Time characteristic 46-TOC............................................................................ 138
2.7.3 Setting Notes.............................................................................................................140
2.7.4 Settings.....................................................................................................................142
2.7.5 Information List.........................................................................................................143
2.8 Motor Protection.............................................................................................................144
2.8.1 Motor Starting Protection 48......................................................................................144
2.8.1.1 Description.......................................................................................................... 144
2.8.1.2 Setting Notes....................................................................................................... 147
2.8.2 Motor Restart Inhibit 66.............................................................................................148
2.8.2.1 Description.......................................................................................................... 149
2.8.2.2 Setting Notes....................................................................................................... 153
2.8.3 Load Jam Protection (51M)........................................................................................ 157
2.8.3.1 Description.......................................................................................................... 157
2.8.3.2 Setting Notes....................................................................................................... 159
2.8.4 Motorprotection (Motor Starting Protection 48, Motor Restart Inhibit 66, LoadJam)....161
2.8.4.1 Settings............................................................................................................... 161
2.8.4.2 Information List................................................................................................... 162
2.9 Frequency Protection 81 O/U...........................................................................................163
2.9.1 Description................................................................................................................163
2.9.2 Setting Notes.............................................................................................................164
2.9.3 Settings.....................................................................................................................165
2.9.4 Information List.........................................................................................................166
2.10 27/Q............................................................................................................................... 167
2.10.1 Functional Description...............................................................................................167
2.10.2 Setting Notes.............................................................................................................169
2.10.3 Settings.....................................................................................................................170
2.10.4 Information List.........................................................................................................171
2.11 Thermal Overload Protection 49...................................................................................... 172
2.11.1 Description................................................................................................................172
2.11.2 Setting Notes.............................................................................................................175
2.11.3 Settings.....................................................................................................................178
2.11.4 Information List.........................................................................................................179
2.12 Monitoring Functions......................................................................................................180
2.12.1 Measurement Supervision......................................................................................... 180
2.12.1.1 General................................................................................................................180
2.12.1.2 Hardware Monitoring .......................................................................................... 180
2.12.1.3 Monitoring of the Hardware Modules................................................................... 182
2.12.1.4 Software Monitoring ........................................................................................... 183
2.12.1.5 Monitoring of the Transformer Circuits................................................................. 183
2.12.1.6 Measurement Voltage Failure Detection............................................................... 185
2.12.1.7 Broken Wire Monitoring of Voltage Transformer Circuits....................................... 189
2.12.1.8 Setting Notes....................................................................................................... 190
2.12.1.9 Settings............................................................................................................... 191
2.12.1.10 Information List................................................................................................... 192
2.12.2 Trip Circuit Supervision 74TC..................................................................................... 193
2.12.2.1 Description.......................................................................................................... 193
2.12.2.2 Setting Notes....................................................................................................... 196
2.12.2.3 Settings............................................................................................................... 196
2.12.2.4 Information List................................................................................................... 197
2.12.3 Malfunction Responses of the Monitoring Functions.................................................. 197
2.12.3.1 Description.......................................................................................................... 197
Table of Contents
SIPROTEC 4, 7SJ62/64, Manual 11
C53000-G1140-C207-8, Edition 08.2016

Siemens SIPROTEC 4 Specifications

General

Brand	Siemens
Model	SIPROTEC 4
Category	Protection Device
Language	English