Siemens SIPROTEC 5 Technical Data Manual page 97
High-voltage bay controller, v7.80 and higher
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Also See for SIPROTEC 5:
- Manual (490 pages) ,
- Operation manual (218 pages) ,
- Hardware description manual (63 pages)
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Technical Data
11.31 Thermal Overload Protection, 3-Phase – Advanced
Operate Curve
Operate curve
Where
1192
t
τ
th
I
I
preload
k
I
rated, obj
Operate time
Time constant
Current load current
Preload current
Setting factor according to VDE 0435 part 3011 or
IEC 60255-149 (K factor)
Rated current of the protected object
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-A, Edition 05.2018
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