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Temperature difference insulation

Symbol
$\Delta \theta_i$
Unit
K
Formulas
$T_{ins} \left(W_c+\frac{W_d}{2}\right)$
Related
$T_{ins}$
Thermal resistance insulation [K.m/W]
$W_c$
Conductor losses (phase) [W/m]
$W_d$
Dielectric losses (phase) [W/m]
Used in
$a_i$
Parameter a for radial derivative of dielectric losses
$\delta_i$
Electrical thickness of insulation material [m]
$\Delta w_d$
Increment of volumetric density of dielectric losses in HVDC cables [W/m$^3$]