Powerful tool for calculation of HVDC transformer and reactor insulation electrical strength.
- DCI is a 2D finite element software for transient electric field simulation.
- Database of main insulation permissible electrical strength is incorporated.
- DCI software is used for electroquasistatic analysis: induced currents and wave effects are neglected.
- DCI software is used for estimation of HVDC transformer and reactor insulation electrical strength under the following test conditions: DC, DC with reverse polarity, combined AC and DC.
An example of dielectric strength evaluation of transformer bushing experimental model insulation is presented.
In this example lead with capacitive bushing and rubber insulation are placed inside of oil-barrier insulation with electrostatic shield in order to increase the insulation strength.
Since the geometry possesses axial symmetry an axisymmetrical model type should be used.