5177SD5 Manual
C53000-G1176-C169-1
Technical Data 4
This chapter presents the technical data of the SIPROTEC 4 7SD5 device and its in-
dividual functions, including the limit values that must not be exceeded under any cir-
cumstances. The electrical and functional data for the maximum functional scope are
followed by the mechanical specifications with dimension diagrams.
4.1 General 519
4.2 Protection Data Interfaces and Differential Protection Topology 531
4.3 Differential Protection 533
4.4 Breaker Intertrip and Remote Tripping -Direct Local Trip 535
4.5 Distance Protection (optional) 536
4.6 System Power Swing (with impedance) (optional) 539
4.7 Teleprotection for Distance Protection (optional) 540
4.8 Earth Fault Protection in Earthed Systems (optional) 541
4.9 Teleprotection for Earth Fault Protection (optional) 550
4.10 Weak-infeed Tripping (classic/optional) 551
4.11 Weak-infeed Tripping (French specif./optional) 552
4.12 Direct Remote Trip and Transmission of Binary Information 553
4.13 Instantaneous High-Current Switch-onto-Fault Protection (SOTF) 554
4.14 Time Overcurrent Protection 555
4.15 Automatic Reclosure Function (optional) 558
4.16 Synchronism and Voltage Check (optional) 559
4.17 Undervoltage and Overvoltage Protection (optional) 561
4.18 Frequency Protection (optional) 564
4.19 Fault Locator 565
4.20 Circuit Breaker Failure Protection 566
4.21 Thermal Overload Protection 567
4.22 Monitoring Function 569
4.23 User Defined Functions (CFC) 571
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