MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202547069302 A) filed by Hitachi Energy Ltd on July 21, 2025, for Thermochemical Digital Twin Of Electrical Transformer.
Inventors include Sbravati, Alan; Cheim, Luiz V.; and Frimpong, George K. Number.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: It is not currently feasible to place a sensor within an electrical transformer to directly measure the water content in the solid insulation of the windings. Thus, the degree of degradation of the insulation can generally not be known without a maintenance intervention. Accordingly, disclosed embodiments model thermochemical degradation in a digital twin of the transformer to continuously estimate the water content in sections of the insulation, based on water content in the insulating liquid and the loading on the transformer. This estimated water content may account for diffusion between the insulating liquid and the insulation, as well as the water generated by cellulose degradation in the insulation material. The estimated water content may be used to estimate other parameters, such as the total water content in the transformer, a measure of aging of the transformer, and/or the like, as well as inform maintenance planning for the transformer.
Disclaimer: Curated by HT Syndication.
