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Used high in Quebec, Canada

  • Trusted Seller
    Hammond 109272 High Voltage Transformer

    Hammond 109272 High Voltage Transformer 117V 300VA to 10kV TESTED WORKING

    • Manufacturer: Hammond

    “preowned, inspected and tested.” Power rating: 300 VA | Mounting style: Chassis Mount | Minimum operating frequency: 60 Hz | Current conversion: AC to AC | Termination style: Screw | Number of phases: 1 | Mpn: 1...

    $284 USD
    Saint-Jean-sur-Richelieu, 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...

    $55 USD
    Montréal-Est, Canada
  • Trusted Seller
    Square D Class 9070 Série A Type K50D2

    Square D Class 9070 Série A Type K50D2

    • Manufacturer: Square D

    ⚙️ Technical Specifications - Model: Square D – Class 9070 Series A - Type: K50D2 (Industrial Control Transformer) - Power Rating: 50 VA - Primary Voltage: 240/480 VAC (single-phase) - Secondary Voltage: 24 VAC ...

    $44 USD
    Delson, 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.