Research on Voltage Equalization Characteristics of Ultra-High Voltage Ac 1000 Kv Substation Based on Twin Noise Reduction Technology for Digital Model

In Cole-Cole diagram, first considers conductivity polarization, and the second one does not consider conductivity polarization. In Cole-Cole without considering conductivity, the partial shapes of the two arcs can be seen. In terms of fitting effect, the model that combines the three HN equations fits the experimental data very well with small errors. When runway type voltage equalizing ring is configured and carried to middle position between the second and third insulators, the distributed voltage of the insulator on wire side drops to about 26 kV, with maximum value of 27.5 kV, and maximum field strength appears at the head of insulator. From this, it can be seen that configuring voltage equalization ring significantly improve the distribution voltage of insulators. It was found that Arrhenius formula was no longer applicable to fitting of epoxy resin samples. Two segments were selected to fit the experimental data separately.