History of ERLPhaseAbout Us > History


Our history includes several stages, with unwavering focus on leading-edge protection and recording products. In 1993, ERLPhase began under the name APT Power Technologies, as a software and hardware engineering development team producing an innovative transformer protection relay with roots at the University of Manitoba. Growing its small base of loyal customers, APT expanded to produce what would prove to be a very successful line of protection and recording products.

In the year 2000, APT Power Technologies was acquired by NxtPhase T&D Corporation, a Canadian supplier of optical CTs and PTs, during which time development and support of customers continued.

In June 2007, Easun Reyrolle Ltd acquired this division, which has since operated as the company ERLPhase Power Technologies Ltd.

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EVENTS
  • CUEE Canadian Utility Engineering & Equipment
    Sept 29-30, 2020
    Toronto, Canada
    Visit us in booth #122
    CUEE Website
  • IEEE T&D
    Oct 13-15, 2020
    Chicago, IL
    Visit us in booth #2206
    IEEE T&D Website
  • WPRC
    Oct 19-22, 2020
    Spokane, WA
    ERLPhase will present a paper titled "Tutorial on Sub Synchronous Resonance Protection Applied to Inverter Based Renewables"
    WPRC Website


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Winnipeg, Canada