stress control tube electric field FEA finite element analysis, stress control tube field reduction
This is an example of the cable termination simulation, performed with QuickField software.
Axisymmetric problem of transient electric.
Central conductor potential V = +4 kV.
Screen potential - 0 V (grounded).
Relative permittivity ε of :
air - 1.
insulation - 2.
shield - 1.2.
stress control tube - nonlinear:
Calculate the effect of electric stress reduction.
With stress control tube the maximal electric stress along the cable surface reduces from 1.6 to 0.6 kV/mm.