Multi-criteria comparison of 220 kV switchgears which have different circuits of electrical connections

Everest LLC, 77 Shcherbakov str., Ekaterinburg, Russia

^* Corresponding author: grinevn@ya.ru

Abstract

The paper compares different open 220 kV switchgears in the context of a new complex solution offered by the author. The solution is a polyhedron circuit topology switchgear with novel scheme and arrangement approaches. Comparison is viewed here as a multi-criteria task with the following criteria: reliability, cost-effectiveness, maintenance activities, environment friendliness, compactness. To assess reliability, an unconventional calculation model is offered. The characteristics of open switchgears with a polyhedron circuit topology are better or at least not worse than the best analogs in each criterion. For example, such switchgears are highly reliable, cost-effective in terms of capital expenditures and highly cost-effective in terms of maintenance and balance-of-plant needs (carbon footprint decrease). In terms of all the characteristics together, open switchgears with a polyhedron circuit topology outperform all the existing analogs.