SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
27
Functions 2
This chapter describes the numerous functions available on the SIPROTEC
4 device 7SD80. It shows the
setting possibilities for each function in maximum configuration. Information with regard to the determination of
setting values as well as formulas, if required, are also provided.
Based on the following information, it can also be determined which of the provided functions should be used.
2.1 General 28
2.2 Phase Comparison Protection and Ground Differential Protection 52
2.3 Breaker Intertrip and Remote Tripping 75
2.4 Backup Overcurrent 78
2.5 Inrush Restraint 98
2.6 Circuit-Breaker Failure Protection 50BF 101
2.7 Thermal Overload Protection 49 112
2.8 Undervoltage and Overvoltage Protection 27/59 (Optional) 116
2.9 Frequency Protection 81 (Optional) 133
2.10 Direct Local Trip 139
2.11 Automatic Reclosure Function 79 (Optional) 141
2.12 Circuit-Breaker Test 155
2.13 Direct Remote Trip and Transmission of Binary Information 161
2.14 Monitoring Functions 163
2.15 Flexible Protection Functions 183
2.16 Function Control 194
2.17 Additional Functions 199
2.18 Breaker Control 214
2.19 Notes on Device Operation 229
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