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Used transformator in Germany

  • Michael Riedel Transformatorenbau Transformer New

    Michael Riedel Transformatorenbau Transformer New RDRK 30/36

      Article no.: RDRK 30/36 | Shipping: Express delivery possible | Guarantee in months: 12 | Traces of use: No traces of usage | Case: very good, no scratches | Primary voltage: 3 x 380 / 400 / 420 V | Primary curr...

      $549 USD
      Rosenfeld, Germany
    • Schneider Electric Isolating transformer Used

      Schneider Electric Isolating transformer Used ETB 1500

      • Manufacturer: Schneider Electric

      Article no.: ETB 1500 | Shipping: Standard shipping | Guarantee in months: 12 | Traces of use: Slight traces of usage | Function: Tested | Case: Light storage marks, slight scratches | Primary voltage: 220 V AC ...

      $409 USD
      Rosenfeld, Germany
    • Schneider Electric Isolating transformer Used

      Schneider Electric Isolating transformer Used ETB 3000

      • Manufacturer: Schneider Electric

      Article no.: ETB 3000 | Shipping: Standard shipping | Guarantee in months: 12 | Traces of use: Slight traces of usage | Function: Tested | Case: Light storage marks, slight scratches | Primary voltage: 230 V AC ...

      $526 USD
      Rosenfeld, Germany
    • Rexroth Transformer PSG3100.00PSV R911.170.161 Used

      Rexroth Transformer PSG3100.00PSV R911.170.161 Used R911170161

      • Manufacturer: Bosch - Rexroth

      Article no.: R911170161 | Shipping: Express delivery possible | Guarantee in months: 12 | Case: Storage marks, slight scratches | Frequency: 1000 Hz | Voltage: U1N 500 V / U2d 9,3 V | Current: I2p 6,5 kA | Tempe...

      $2,335 USD
      Rosenfeld, Germany
    • PILLER Transfer switch Apotrans AT

      PILLER Transfer switch Apotrans AT 100 New 52.1.662.0001

      • Manufacturer: Piller

      Article no.: 52.1.662.0001 | Shipping: Standard shipping | Guarantee in months: 12 | Case: Paint is damaged, Storage marks | Frequency: 50 / 60 Hz | Voltage: 380 / 400 / 415 V | Current: 100 A | Weight: 154 kg |...

      $6,624 USD

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      Est. $130/mo

      Rosenfeld, Germany
    • Trusted Seller
      1980 Trafo-Union TS 6244 D

      1980 Trafo-Union TS 6244 D

      • Manufacturer: Trafo-Union

      Brand: Trafo-Union Type: TS 6244 D Year of Manufacture: 80 (1980) Standard: VDE 0532/71 Technical Specifications: - Nominal Power: 1,600 kVA - Frequency: 50 Hz - Voltage Levels: - Primary (St. 1): 21,000 V -...

      Frankfurt, Germany
    45678

    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.