Siemens SIPROTEC 4 7SD80

4.3 87 Differential Protection Phase Comparison Protection...................................................261
4.4 Ground Fault Differential Protection in Grounded Systems...............................................264
4.5 Ground Fault Differential Protection in Resonant-grounded / Isolated Systems..................265
4.6 Breaker Intertrip and Remote Tripping- Direct Local Trip...................................................266
4.7 Time Overcurrent Protection ...........................................................................................267
4.8 Inrush Current Restraint Breaker Intertrip and Remote Tripping........................................ 274
4.9 Circuit-Breaker Failure Protection (Optional).................................................................... 275
4.10 Thermal Overload Protection 49...................................................................................... 276
4.11 Voltage Protection (Optional)..........................................................................................278
4.12 Frequency Protection (Optional)......................................................................................281
4.13 Automatic Reclosing (Optional)....................................................................................... 282
4.14 Transmission of Binary Information and Commands.........................................................283
4.15 Monitoring Functions......................................................................................................284
4.16 Flexible Protection Functions ..........................................................................................286
4.17 User-defined Functions (CFC).......................................................................................... 289
4.18 Additional Functions....................................................................................................... 293
4.19 Dimensions.....................................................................................................................296
4.19.1 Panel Flush Mounting and Cabinet Flush Mounting (Housing Size 1/6) ...................... 296
4.19.2 Panel Surface Mounting (Housing Size 1/6) ............................................................... 297
4.19.3 Bottom View............................................................................................................. 297
A Ordering Information and Accessories.....................................................................................................299
A.1 Ordering Information 7SD80 V4.7 .................................................................................. 300
A.2 Accessories..................................................................................................................... 303
B Terminal Assignments..............................................................................................................................305
B.1 7SD80 — Housing for Panel Flush Mounting, Cabinet Flush Mounting and Panel
Surface Mounting .......................................................................................................... 306
C Connection Examples............................................................................................................................... 313
C.1 Connection Examples for Current and Voltage Transformers............................................314
D Current Transformer Requirements......................................................................................................... 317
D.1 Current Transformer Ratio .............................................................................................. 318
D.2 Overcurrent Factors........................................................................................................ 319
D.3 Class Conversion............................................................................................................. 320
D.4 Core Balance Current Transformer...................................................................................321
E Default Settings and Protocol-dependent Functions............................................................................... 323
E.1 LEDs............................................................................................................................... 324
E.2 Binary Input.................................................................................................................... 325
E.3 Binary Output................................................................................................................. 326
E.4 Function Keys................................................................................................................. 327
E.5 Default Display................................................................................................................328
E.6 Pre-defined CFC Charts....................................................................................................331
E.7 Protocol-dependent Functions.........................................................................................332
Table of Contents
16 SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018