It is my pleasure to present you with the special edition of Transformers Magazine dedicated to bushings.
Following the collection and preparation of the materials for this edition, I set forth to create a summary that would highlight in brief the most important points on the subject of bushings. While doing so, I spoke to a number of experts, among them an experienced transformer designer from a well-known transformer company, who attracted my attention with an interesting claim that in the past few decades we haven’t seen a single significant leap in the bushings technology. And by the leap he didn’t only refer to natural movements in the evolution of such a product, such as the advancement in the material technology where better materials would replace the existing ones, or expanding the voltage level of the product, but he also referred to a more comprehensive, quantum leap in the bushings technology.
Nevertheless, I still find it impressive to see bushings for 1100 kV and 1200 kV voltage levels. If we think about the scale of the impact of the development in the industry as a whole, it is probably true to say that only a small number of us will ever come to encounter and work with these solutions, either directly or indirectly, so the real impact of this development may be expected to remain quite limited.