Understanding High-Voltage Circuit Breaker Nameplates — Part 2

Volney Naranjo, Megger Industry Topics, Spring 2022 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, …

Microgrids: Old Concept on Steroids

Ed Khan, Doble Engineering Company Industry Topics, Spring 2022 Industry Topics

Microgrids are gaining ground in different parts of the world with each passing year. In the United States, one of the main drivers advancing the concept of microgrid was Hurricane Sandy. This hurricane, which hit the northeast part of the US in 2012, caused havoc with the transmission and distribution system. The advantages presented by smaller, self-sustaining grids began to …

Should I Do Power Studies In-House or Subcontract Them Out?

Roger Graver, PowerSight Industry Topics, Spring 2022 Industry Topics

For some companies, deciding whether to perform power monitoring studies with their own in-house professionals or subcontract the work out may be a real toss-up. There is no general right answer, but there is a right answer for you. That answer may change over time. This article is a guide to making (and revising) that decision. To be clear, this …