Functions - Siemens SIPROTEC 7SK80 Manual
Motor protection
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Also See for SIPROTEC 7SK80:
- Manual (512 pages) ,
- Product information (80 pages) ,
- Manual (43 pages)
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Functions
This chapter describes the numerous functions available on the SIPROTEC 4 device 7SK80. 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
Directional Ground Overcurrent Protection 67N
2.4
Dynamic Cold Load Pickup
2.5
Voltage Protection 27, 59
2.6
Negative Sequence Protection 46
2.7
Motor Protection (Motor Starting Protection 48, Motor Restart Inhibit 66, Load Jam Protection) 120
2.8
Frequency Protection 81 O/U
2.9
Thermal Overload Protection 49
2.10
Monitoring Functions
2.11
Ground Fault Protection 64, 67N(s), 50N(s), 51N(s)
2.12
Breaker Failure Protection 50BF
2.13
Flexible Protection Functions
2.14
Reverse-Power Protection Application with Flexible Protection Function
2.15
Temperature Detection via RTD Boxes
2.16
Phase Rotation
2.17
Function Logic
2.18
Auxiliary Functions
2.19
Breaker Control
2.20
Notes on Device Operation
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
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