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Used side in Canada

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    Electro-Technic Products Step-Up Transformer

    Electro-Technic Products Step-Up Transformer

    • Manufacturer: Electro-Technic Products

    This Electro-Technic Products step-up transformer is a type of transformer that converts the low voltage (LV) and high current from the primary side of the transformer to the high voltage (HV) and low current val...

    $55 USD
    Montréal-Est, Canada
  • Type 3R Current Transformer Cabinet

    Type 3R Current Transformer Cabinet

      HCT Series Single and Double Door Enclosures Application Designed for use as Current Transformer Box to house and protect instrument current transformers in outdoor applications. Can also be used as a general pur...

      Guelph, Canada

    Overview

    Current transformers (CTs) convert high alternating currents into a scaled secondary current for meters, relays and protection systems. Available as window, wound or bar types, CTs vary by ratio, accuracy class and saturation behavior. Proper selection focuses on rated primary current, burden, insulation, knee-point for protection use, and condition when buying used for substations, switchgear, or industrial panels.

    FAQ

    What should I check when buying a used CT?

    Verify the nameplate ratio and accuracy class, inspect for physical damage or oil leaks, request recent ratio and insulation test reports, and confirm the CT type (wound/window/bar) and its knee-point if used for protection.

    How should a CT be prepared and shipped safely?

    Drain and seal oil-filled CTs if required, protect bushings and cores, short and ground the secondary terminals, secure the unit to prevent shock, and use a carrier experienced with electrical equipment plus insurance.

    What routine maintenance and tests are essential for CTs?

    Perform visual inspections, insulation resistance tests, ratio and polarity checks, check for oil contamination on liquid-filled units, and schedule periodic accuracy and dielectric tests per manufacturer guidelines.