Problems associated with harmonic distortion are well understood for many power system applications. However, finding the right solution is challenging. There are at least ten different technologies to choose from, each with specific technical and economic advantages. This paper will … Continue reading ▸

The primary safety standard for surge protective devices (SPD’s), also called transient voltage surge suppressors (TVSS) has undergone some major revisions in the past 3 years. This document will describe the major differences between UL 1449 2nd Edition and UL … Continue reading ▸