Functions - Siemens SIPROTEC 7SJ61 Manual

Functions

This chapter describes the numerous functions available on the SIPROTEC 4 device 7SJ61. 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
2.2 Overcurrent Protection 50, 51, 50N, 51N
2.3 Dynamic Cold Load Pickup
2.4 Single-Phase Overcurrent Protection
2.5 Negative Sequence Protection 46
2.6 Motor Protection
2.7 Thermal Overload Protection 49
2.8 Monitoring Functions
2.9 Ground Fault Protection 50N(s), 51N(s)
2.10 Intermittent Ground Fault Protection
2.11 Automatic Reclosing System 79
2.12 Breaker Failure Protection 50BF
2.13 Flexible Protection Functions
2.14 Temperature Detection via RTD Boxes
2.15 Phase Rotation
2.16 Function Logic
2.17 Auxiliary Functions
2.18 Breaker Control
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
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77
83
94
102
124
134
147
156
162
185
191
200
209
211
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244
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