Archive for April 2017

Jim White from Shermco Industries delves into Critical Maintenance for Circuit Breakers: Circuit breakers aren’t much fun. They don’t do a whole lot; just open contacts and close contacts. Pretty boring. However, if a breaker doesn’t operate when it’s supposed to, life can get very exciting! This paper will cover common maintenance problems and mistakes that…

Type “U” Bushings… So What’s the Concern About? Up-to-the-Minute News About Type “U” Transformer Bushings from ABB Contact including:  Identifying Type “U” Bushings, Migrating Ink leads to Corona action an d Top Terminal Overheating “Criteria for Concern” Update with Refurbishment Recommendations Bushing Guidelines and Dealing with PCB Contamination Type “T” Bushings