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Used test in Baden-Württemberg, Germany

  • Schneider EUEDW 0,6B-990102V0 control and

    Schneider EUEDW 0,6B-990102V0 control and separation transformer

    • Manufacturer: Schneider

    The Schneider EUEDW 0,6B-990102V0 is a powerful control and isolation transformer for industrial applications with variable primary voltage and 230V/115V secondary voltage. With a rated power of 0.615 kVA, this d...

    Grenzach-Wyhlen, 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 ...

    $407 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 ...

    $523 USD
    Rosenfeld, Germany

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.