P I Vasilyev¹ , R T Khazieva¹ and R R Aflyatunov¹

¹ Ufa State Petroleum Technological University, 1, Kosmonavtov ave., Ufa, 450064, Russia

Abstract

In the article, the authors investigated a device for testing the insulation of electrical equipment with increased voltage. Insulation in electrical devices is an essential design element. The dielectric strength of the insulation is determined by its ability to withstand the continuous rated voltage for which the installation is designed. But in some cases, the strength of the insulation may deteriorate due to moisture or defects. Defects can be air inclusions in solid or liquid dielectric. These air inclusions further create conditions for the occurrence of partial discharges. The article discusses the test schemes that exist today to determine the margin of dielectric strength of insulation. The article presents a diagram of the developed device of the installation for testing insulation based on a single design and technological component. The presented device has a smaller weight and size and more effective voltage gain. The results of mathematical modeling, proving an improvement in gain in comparison with analogs, are given.