Figure. 5.3.19 - 154. Ambient temperature coefficient calculation (a three-point linear approximation and a settable correction
curve).
As can be seen in the diagram above, the ambient temperature coefficient is relative to the nominal
temperature reference. By default the temperature reference is +15 °C (underground cables) which
gives the correction factor value of 1.00 for the thermal replica.
A settable thermal capacity curve uses the linear interpolation for ambient temperature correction with
a maximum of ten (10) pairs of temperature–correction factor pairs.
Figure. 5.3.19 - 155. Example of the relationship between ground temperature and correction factor.
The temperature coefficient may be informed in a similar manner to the figure above in a datasheet
provided by the manufacturer.
A
AQ
Q-F205
-F205
Instruction manual
Version: 2.04
© Arcteq Relays Ltd
IM00013
219
Содержание AQ F205
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