SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
569
Technical Data 4
This chapter lists the technical data of the SIPROTEC 4 device 7SD5 and its individual functions, including the
limit values that must not be exceeded under any circumstances. The electrical and functional data of fully
equipped devices are followed by the mechanical data, with dimensional drawings.
4.1 General 571
4.2 Protection Data Interfaces and differential protection topology 584
4.3 Differential Protection 588
4.4 Restricted Earth Fault Protection 590
4.5 Breaker Intertrip and Remote Tripping- Direct Local Trip 591
4.6 Distance Protection (optional) 592
4.7 Power Swing Detection (with impedance pickup) (optional) 596
4.8 Teleprotection for Distance Protection (optional) 597
4.9 Earth Fault Protection in Earthed Systems (optional) 598
4.10 Teleprotection for Earth Fault Protection (optional) 608
4.11 Weak Infeed Tripping (classical/optional) 609
4.12 Weak Infeed Tripping (French Specification/optional) 610
4.13 Direct Remote Trip and Transmission of Binary Information 611
4.14 Instantaneous High-Current Switch-onto-Fault Protection (SOTF) 612
4.15 Earth fault detection in a non-earthed system 613
4.16 Backup Time Overcurrent Protection 614
4.17 Automatic Reclosure Function (optional) 617
4.18 Synchronism and Voltage Check (optional) 618
4.19 Undervoltage and Overvoltage Protection (optional) 620
4.20 Frequency Protection (optional) 623
4.21 Fault Locator 624
4.22 Circuit Breaker Failure Protection 625
4.23 Thermal Overload Protection 626
4.24 Monitoring Functions 628
4.25 User-defined Functions (CFC) 630
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