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Used flow in China

  • Trusted Seller
    RXLK2H | RXLK 2H ABB

    RXLK2H | RXLK 2H ABB generator-transformer

    • Manufacturer: ABB

    ABB RXLK 2H generator-transformer ABB RXLK 2H When power transformers and generators are overexcited, stray flux will flow into non-laminated parts not designed to carry magnetic flux. The currents induced in the...

    Fujian, China
  • Split Core Current Transformer Corrugated

    Split Core Current Transformer Corrugated Fin Production Line Machinery

    • Manufacturer: EN-SOURCE

    I General Layout for Transformer Corrugation Fin Production Line (fin forming, fin seam&edges welding, reinforcing rod welding, spot welding, vertical bending and tank assembling) Build up of Transformer Corrugat...

    Zhejiang, China
  • Dry Air Generator Transformer Maintanence

    Dry Air Generator Transformer Maintanence Vacuum Drying Equipment

    • Manufacturer: Gold

    Dry Air Generator Transformer Maintanence Vacuum Drying Equipment Company Introduction: Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd is one of the leading manufacturers of oil purifier in China. Curre...

    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.