Functions - Siemens SIPROTEC 4 User Manual

2

Functions

This chapter describes the numerous functions available on the SIPROTEC 4 device 7SJ62/64. It shows the
setting possibilities for each function in maximum configuration. Information with regard to the determina-
tion 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 Directional Overcurrent Protection 67, 67N
2.4 Dynamic Cold Load Pickup
2.5 Single-Phase Overcurrent Protection
2.6 Voltage Protection 27, 59
2.7 Negative Sequence Protection 46
2.8 Motor Protection
2.9 Frequency Protection 81 O/U
2.10 27/Q
2.11 Thermal Overload Protection 49
2.12 Monitoring Functions
2.13 Ground Fault Protection 64, 67N(s), 50N(s), 51N(s)
2.14 Intermittent Ground Fault Protection
2.15 Dir. Intermittent earth fault protection
2.16 Automatic Reclosing System 79
2.17 Fault Locator
2.18 Breaker Failure Protection 50BF
2.19 Flexible Protection Functions
2.20 Reverse-Power Protection Application with Flexible Protection Function
2.21 Synchronization Function
2.22 Temperature Detection via RTD Boxes
2.23 Phase Rotation
2.24 Function Logic
2.25 Auxiliary Functions
2.26 Protection for Single-phase Voltage Transformer Connection
2.27 Breaker Control
SIPROTEC 4, 7SJ62/64, Manual
C53000-G1140-C207-8, Edition 08.2016
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