Energy » Transformers » Current Transformer (CT) » Chongqing

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Used name /type in Chongqing, China

  • ACP Portable Electrical Current Transformer

    ACP Portable Electrical Current Transformer Test,CT/PT Analyzer

      ACP portable current transformer test kit designed for analyzing current transformers and voltage transformers of protection or measurement use, which is suitable for laboratory and on-site test. Application:ACP ...

      Chongqing, China
    • High Precision Transformer Winding Resistance

      High Precision Transformer Winding Resistance Tester DC Resistance Test Set

      • Manufacturer: Gold

      High Precision Transformer Winding Resistance Tester DC Resistance Test Set Brief introduction This tester is the newest product for transformer DC resistance test; it can test the resistance of the three-phase w...

      $2,000 USD
      Chongqing, China
    • Professional CT Meter for Current

      Professional CT Meter for Current Transformer Testing CT PT Tester

      • Manufacturer: Gold

      GDVA-405 CT Meter for Current Transformer Testing CT PT Tester Product Description The GDYA-405 is a professional CT/PT analyzer (current and voltage transformer tester) designed specifically for the power indust...

      Chongqing, China
    • Transformer Test Equipment Tan Delta

      Transformer Test Equipment Tan Delta Tester Power Factor Meter

      • Manufacturer: Gold

      Transformer Test Equipment Tan Delta Tester Power Factor Meter 1.Tan delta meter Tan Delta (TD) - also referred to as Dissipation Factor or sometime even Power Factor - is an excellent diagnostic test that provid...

      $2,660 USD
      Chongqing, China

    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.