10-1
7SJ63 Manual
C53000-G1140-C120-1
Technical Data
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This chapter provides the technical data of the SIPROTEC
®
4 7SJ63 device and the
individual functions of the device, including the limiting values that under no circum-
stances may be exceeded. The electrical and functional data are followed by the me-
chanical data, with dimensional drawings of 7SJ63 devices equipped with all options
.
Definite-Time Overcurrent Protection (50 and 50N Elements)
Inverse-Time Overcurrent Protection (51 and 51N Elements)
Directional Time Overcurrent Protection (67 and 67N Elements)
Dynamic Cold Load Pick-up Function (50c, 50Nc, 51Nc, 67c, 67Nc) 10-20
Sensitive Ground Fault Detection (64, 50Ns, 67Ns)
Negative Sequence Protection (46)
Motor Starting Protection (48)
Thermal Overload Protection (49)
Start Inhibit for Motors (66/68)
Voltage Protection (27 and 59)
Frequency Protection (81 Over-Frequency and Under-Frequency)
Breaker Failure Protection (50BF)
Automatic Reclosing System (79M)
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