Table of Contents
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Technical Data
This chapter provides the technical data of the device SIPROTEC 7SK80 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
4.2
Definite-time Overcurrent Protection
4.3
Inverse-time Overcurrent Protection
4.4
Directional overcurrent protection ground
4.5
Inrush Restraint
4.6
Dynamic Cold Load Pickup
4.7
Voltage Protection 27, 59
4.8
Negative Sequence Protection (definite-time characteristic)
4.9
Negative Sequence Protection (inverse-time characteristics)
4.10
Motor Starting Time Supervision
4.11
Motor Restart Inhibit
4.12
Load Jam Protection
4.13
Frequency Protection
4.14
Thermal Overload Protection
4.15
Ground Fault Detection (Sensitive/Insensitive)
4.16
Intermittent Ground Fault Protection
4.17
Directional intermittent ground fault protection
4.18
Breaker Failure Protection 50BF
4.19
Flexible Protection Functions
4.20
Temperature Detection
4.21
User-defined Functions (CFC)
4.22
Additional Functions
4.23
Switching Device Control
4.24
Dimensions
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A5, Release date 11.2012
4
350
360
362
373
374
375
376
378
379
385
386
387
388
389
391
395
396
397
398
401
403
408
413
414
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