Siemens 7SC80 - Page 18

4.7 Single-Phase Overcurrent Protection................................................................................531
4.8 Voltage Protection 27, 59................................................................................................532
4.9 Negative Phase Sequence Overvoltage Protection............................................................534
4.10 Voltage Protection for Vx.................................................................................................535
4.11 Negative Sequence Protection 46-1, 46-2 (Definite Time Characteristic)...........................536
4.12 Negative Sequence Protection 46-TOC (Inverse Time Characteristic)................................ 537
4.13 Frequency Protection 81................................................................................................. 543
4.14 Thermal Overload Protection...........................................................................................544
4.15 Ground Fault Detection (Sensitive/Insensitive).................................................................546
4.16 Automatic Reclosing Function ........................................................................................ 553
4.17 Sectionalizer................................................................................................................... 554
4.18 Fault Locator...................................................................................................................556
4.19 Breaker Failure Protection 50BF.......................................................................................557
4.20 Flexible Protection Functions...........................................................................................558
4.21 Synchronization Function................................................................................................561
4.22 User-defined Functions (CFC).......................................................................................... 563
4.23 Additional Functions....................................................................................................... 572
4.24 Switching Device Control................................................................................................ 576
4.25 Additional Applications with 6 Voltage Inputs..................................................................577
4.25.1 Voltage Protection 27, 59 of Side 2............................................................................ 577
4.25.2 Frequency Protection 81 of Side 2..............................................................................578
4.26 Dimensions.....................................................................................................................580
4.26.1 Feeder Protection and Recloser Controller 7SC80....................................................... 580
4.26.2 HMI...........................................................................................................................581
4.26.3 Varistor..................................................................................................................... 581
A Ordering Information and Accessories.....................................................................................................583
A.1 Ordering Information 7SC802 ........................................................................................ 584
A.2 Ordering Information 7SC803 ........................................................................................ 587
A.3 Accessories..................................................................................................................... 590
B Terminal Assignments..............................................................................................................................591
B.1 7SC80 — Housing for cabinet flush mounting and cabinet surface mounting .................. 592
C Connection Examples............................................................................................................................... 599
C.1 Connection Examples for Current and Voltage Transformers............................................600
D Current Transformer Requirements......................................................................................................... 605
D.1 Accuracy limiting factors................................................................................................. 606
D.2 Class conversion............................................................................................................. 607
E Default Settings and Protocol-dependent Functions............................................................................... 609
E.1 LEDs............................................................................................................................... 610
E.2 Binary Input.................................................................................................................... 611
E.3 Binary Output................................................................................................................. 612
E.4 Function Keys................................................................................................................. 613
E.5 Default Display................................................................................................................614
Table of Contents
18 SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017