SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
305
Technical Data 4
This chapter provides the technical data of the device SIPROTEC 7SJ61 and its individual functions, including
the limit values that may not be exceeded under any circumstances. The electrical and functional data for the
maximum functional scope are followed by the mechanical specifications with dimensioned drawings.
4.1 General Device Data 306
4.2 Definite-Time Overcurrent Protection 50(N) 318
4.3 Inverse-Time Overcurrent Protection 51(N) 320
4.4 Inrush Restraint 331
4.5 DynamiC Cold Load Pickup 332
4.6 Single-phase Overcurrent Protection 333
4.7 Negative Sequence Protection 46-1, 46-2 334
4.8 Negative Sequence Protection 46-TOC 335
4.9 Motor Starting Protection 48 341
4.10 Motor Restart Inhibit 66 342
4.11 Load Jam Protection 343
4.12 Thermal Overload Protection 49 344
4.13 Ground Fault Protection 50N(s), 51N(s) 346
4.14 Intermittent Ground Fault Protection 350
4.15 Automatic Reclosing System 79 351
4.16 Breaker Failure Protection 50BF 352
4.17 Flexible Protection Functions 353
4.18 Temperature Detection via RTD Boxes 355
4.19 User-defined Functions (CFC) 356
4.20 Additional Functions 361
4.21 Breaker Control 365
4.22 Dimensions 366
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