Case Study
DTM 230kV Bushing monitoring Saves Millions of Dollars
Dynamic Ratings Inc. N53 W24794 S. Corporate Circle, Suite A Sussex, WI 53089 Tel: +1 (262) 746-1230 Fax: +1 (262) 746-1232 www.dynamicratings.com Monitoring, Control and Communications for Electrical Power Apparatus 230 kV Bushing Monitoring Saves Millions of Dollars ? CASE STUDY Challenge Bushings are one of the top failure modes of power transformers. 52% of bushing failures cause a major fire and total destruction of the transformer. Many times the failure modes of bushings are voltage or temperature dependent and may fail in a matter of weeks. The customer’s offline tests were performed approximately four months prior and all results were acceptable. Offline testing can provide misleading results since the full effect of operating conditions are not present