An Intelligent System for Condition Assessment of Power Transformers

Mohamed Khalil, PhD, Doble Engineering CompanyIndustry Topics, Winter 2021 Industry Topics

The health index (HI) approach has been adopted widely as a tool to help asset managers prioritize their plans and actions. However, the conventional computation of HI, which is based on scoring and ranking, has several drawbacks. In this work, the fuzzy logic approach is used to build up an intelligent HI system to assess the condition of power transformers …

Understanding High-Voltage Circuit Breaker Nameplates

Volney Naranjo, MeggerIndustry Topics, Winter 2021 Industry Topics

Along the extensive and complex electrical system infrastructure from generation to transmission and distribution, the wide variety of medium- and high-voltage circuit breakers (MV/HV CB) vary in size, interrupting medium, number of breaks per phase, and various other attributes. To help classify breakers and their attributes, they are all shipped with a nameplate stating the minimum information about specific mechanical, …