Temperature Detectors
Number of measuring points from 1 RTD-box (up to 6 measuring points) or
from 2 RTD-boxes (up to 12 measuring points)
For hot-spot calculation one temperature detector must be connected.
Cooling
Cooling method ON (oil natural)
OF (oil forced)
OD (oil directed)
Oil exponent Y 1.6 to 2.0 Increments 0.1
Hot-spot to top-oil gradient Hgr 22 to 29 Increments 1
Annunciation Thresholds
Warning temperature hot-spot
or
98 °C to 140 °C
208 °F to 284 °F
Stufung 1 °C
Increments 1 °F
Alarm temperature hot-spot
or
98 °C to 140 °C
208 °F to 284 °F
Increments 1 °C
Increments 1 °F
Warning ageing rate 0.125 to 128.000 Increments 0.001
Alarm ageing rate 0.125 to 128.000 Increments 0.001
Technical Data
4.9 Thermal Overload Protection
442 SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
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