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Used customized in Canada

  • Trusted Seller
    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...

    $54 USD
    Montréal-Est, Canada
  • Trusted Seller
    Staco 3PN1010B Variable Autotransformer

    Staco 3PN1010B Variable Autotransformer

    • Manufacturer: Staco
    • Model: 3PN1010B

    The 3PN series are connected for output voltage increase with a clockwise rotation, and the dials are graduated from 0 to 100% of the voltage setting. This Matheson 3PN variable transformer operates from 120V lin...

    $162 USD
    Montréal-Est, Canada
  • Trusted Seller
    Staco 3PN1010 Variable Autotransformer

    Staco 3PN1010 Variable Autotransformer

    • Manufacturer: Staco

    The 3PN series are connected for output voltage increase with a clockwise rotation, and the dials are graduated from 0 to 100% of the voltage setting. This Matheson 3PN variable transformer operates from 120V lin...

    $162 USD
    Montréal-Est, Canada
  • Trusted Seller
    Superior Powerstat 3PN116B Variable Autotransformer

    Superior Powerstat 3PN116B Variable Autotransformer

    • Manufacturer: Superior Electric Company

    The PowerStat 116B series transformer operates from 120V lines and features PowerCote coils. For a constant impedance load, the maximum rated output current at line voltage is increased to 13 amperes. Output: 0 ...

    $162 USD
    Montréal-Est, Canada
  • Trusted Seller
    FANUC AC SPINDLE MOTOR A06B-0755-B190

    FANUC AC SPINDLE MOTOR A06B-0755-B190 #0100

    • Manufacturer: Fanuc

    The control board has been removed from a working machine and is assumed to be working. 30 DAYS RETURN POLICY Customer satisfaction is our primary goal at Gizmo Machine Tools Inc. and we do our best to describe e...

    Mississauga, 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.