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Used Current Transformer (Ct)

  • Trusted Seller
    MO-5900, GE 9T23Q9872 TRANSFORMER. 30

    MO-5900, GE 9T23Q9872 TRANSFORMER. 30 KVA. 480 HV. 208/120 LV. 3 PH.

    • Manufacturer: GE

    “Contact us directly for a freight quote or you can setup your own freight. Please provide ship to address. Loading is included with the sale of the item.”

    $399 USD
    Willoughby, OH
  • TOYO KEIKI,JIS C1731,CURRENT TRANSFORMER TYPE

    TOYO KEIKI,JIS C1731,CURRENT TRANSFORMER TYPE COM-5/20 50/60HZ MISSING BOX

    • Manufacturer: Toyo

    TOYO KEIKI,JIS C1731,CURRENT TRANSFORMER TYPE COM-5/20 50/60HZ MISSING BOX What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in ...

    $60 USD
    Galion, OH
  • Trusted Seller
    Instrument Transformers Current Transformer 180SHT-151

    Instrument Transformers Current Transformer 180SHT-151

    • Manufacturer: Instrument Transformers

    All parts ordered before 3:30 pm (EST) typically ship same day via UPS, FedEx, or USPS! If the order is placed after 3:30 pm and you still would like it send out same day, feel free to reach out to us and we will...

    $75 USD
    Muskegon, MI
  • E.I.L INSTRUMENTS,5-RL-201,CURRENT TRANSFORMER 5-400HZ 600V

    E.I.L INSTRUMENTS,5-RL-201,CURRENT TRANSFORMER 5-400HZ 600V RATIO 200:5 A NOS

    • Manufacturer: E.I.L INSTRUMENTS

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $35 USD
    Galion, OH
  • WESTON,605,CURRENT TRANSFORMER NOS

    WESTON,605,CURRENT TRANSFORMER NOS

    • Manufacturer: Weston

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $25 USD
    Galion, OH
  • IME Mark,3P85-301,Current Transformer Ratio 600:5

    IME Mark,3P85-301,Current Transformer Ratio 600:5 50-400Hz 600V LR89403

    • Manufacturer: IME Mark

    New unused without original box NOS. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictu...

    $350 USD
    Galion, OH
  • Tyco,2RL-500,Current Transformer

    Tyco,2RL-500,Current Transformer

    • Manufacturer: Current

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $16 USD
    Galion, OH
  • SIEMENS,MT1000A,CONTROL TRANSFORMER 1000VA

    SIEMENS,MT1000A,CONTROL TRANSFORMER 1000VA

    • Manufacturer: Siemens
    • Model: MT1000A

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $115 USD
    Galion, OH
  • Toyo Keiki,JIS C1731,Current Transformer

    Toyo Keiki,JIS C1731,Current Transformer

    • Manufacturer: Toyo

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $24 USD
    Galion, OH
  • RELIANCE ELECTRIC,64670-11T,CURRENT TRANSFORMER NOS

    RELIANCE ELECTRIC,64670-11T,CURRENT TRANSFORMER NOS

    • Manufacturer: Reliance Electric

    RELIANCE ELECTRIC,64670-11T,CURRENT TRANSFORMER NOS What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will...

    $120 USD
    Galion, OH
  • GENERAL ELECTRIC,631X28,CURRENT TRANSFORMER

    GENERAL ELECTRIC,631X28,CURRENT TRANSFORMER

    • Manufacturer: GE

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $25 USD
    Galion, OH
  • Advance,71A65F3-T,Transformer Ballast

    Advance,71A65F3-T,Transformer Ballast

    • Manufacturer: Advance

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $28 USD
    Galion, OH
  • (3) 50/5 25 KV ASSOCIATED

    (3) 50/5 25 KV ASSOCIATED ENGINEER CURRENT TRANSFORMERS, TYPE BB-25, STYLE 8210 $795 EACH

      Inventory id: 11938900000 | Category: CURRENT TRANSFORMER | Description: (3) CURRENT TRANSFORMERS | Information: ASSOCIATED ENGINERING CURRENT TRANSFORMER/DIVISION OF KUHLMAN CORPORATION

      Pittsburgh, PA
    • Dongan,A06-SA6,Ignition Transformer 120V Primary 6000V

      Dongan,A06-SA6,Ignition Transformer 120V Primary 6000V Secondary

      • Manufacturer: Dongan
      • Model: A06-SA6

      Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to make sure the part number(s) m...

      $120 USD
      Galion, OH
    • EuTrafo Kft,MSZ EN61558-2-4,Transformer

      EuTrafo Kft,MSZ EN61558-2-4,Transformer

      • Manufacturer: EuTrafo Kft

      Used and in good condition. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to ma...

      $100 USD
      Galion, OH
    56789

    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.