SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
35
Functions 2
This chapter describes the individual functions of the SIPROTEC
4 device 7SD5. It shows the setting possibil-
ities for each function in maximum configuration. Guidelines for establishing setting values and, where required,
formulae are given.
Based on the following information, it can also be determined which of the provided functions should be used.
2.1 General 37
2.2 Protection Data Interfaces and Protection Data Topology 74
2.3 Differential Protection 93
2.4 Breaker Intertrip and Remote Tripping 110
2.5 Distance Protection 115
2.6 Power Swing Detection (optional) 181
2.7 Teleprotection for Distance Protection (optional) 187
2.8 Earth Fault Protection in Earthed Systems (optional) 217
2.9 Teleprotection for Earth Fault Protection (optional) 249
2.10 Restricted Earth Fault Protection (optional) 265
2.11 Measures for Weak and Zero Infeed 273
2.12 Direct Local Trip 285
2.13 Transmission of Binary Commands and Messages 287
2.14 Instantaneous High-Current Switch-onto-Fault Protection (SOTF) 290
2.15 Sensitive Earth Flt.(comp/ isol. starp.) 295
2.16 Backup Time Overcurrent Protection 302
2.17 Automatic Reclosure Function (optional) 318
2.18 Synchronism and Voltage Check (optional) 348
2.19 Undervoltage and Overvoltage Protection (optional) 361
2.20 Frequency Protection (optional) 381
2.21 Fault Locator 387
2.22 Circuit Breaker Failure Protection 396
2.23 Thermal Overload Protection 414
2.24 Monitoring Functions 418
2.25 Function Control and Circuit Breaker Test 443
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