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Used sets in Beijing, China

  • DTR8510 Transformer Turns Ratio Tester

    DTR8510 Transformer Turns Ratio Tester

    • Manufacturer: 法国/CA

    Introduction: Warning display of faults such as wrong wire connection, polarity reversal, open circuit and short circuit, the instrument is easy to connect and easy to set up; no calibration or balancing required...

    Beijing, China
  • GF1061R instrument transformer turns ratio

    GF1061R instrument transformer turns ratio test set

      GF1061R portable instrument transformer turns ratio test set is mainly used for field or lab testing of current transformers and voltage transformers, it can fully automatic test CT and PT turns ratio, display ph...

      Beijing, China
    • TEST-901 large current 1000a primary

      TEST-901 large current 1000a primary current injection test set

        TEST-901 primary current injection test set adopts 32bit ARM chip to control its output process and large capacity of toroidal transformers. It is equipped with LCD display and current meter; it can show primary ...

        Beijing, China
      • T-213S Three Phase Transformer Dc

        T-213S Three Phase Transformer Dc Resistance Test Equipment

          T-213S three phase transformer dc resistance test equipment with three channel functions can test transformer, mutual inductor, reactor, dc resistance of motor and perceptual load. resistance of motor and percept...

          Beijing, China
        • T-218 Automatic Portable Transformer Demagnetization

          T-218 Automatic Portable Transformer Demagnetization Tester

            The T-218 is a fully automatic transformer demagnetization tester which performs three-phase transformer and single-phase and three-phase power transformers demagnetization. Transformer magnetic core demagnetizat...

            Beijing, China
          • T-213 Transformer winding DC resistance

            T-213 Transformer winding DC resistance tester

              T-213 test instrument can test transformer, mutual inductor, reactor, dc resistance of motor and perceptual load. Instrument is small in size, light weight, strong function, easy operation, designed for productio...

              Beijing, China
            • Single Phase Overhead Completely Self

              Single Phase Overhead Completely Self Protected (CSP) Transformer

                500 Set/Sets per Month 25kva 37.5kva 50kva single phase pole mounted distribution trans International Packing Method according to client's requirement. 25kva 37.5kva 50kva single phase pole mounted distribution t...

                Beijing, China
              • 750 kva ~ 2500 kva

                750 kva ~ 2500 kva 3 Phase Pad-mounted Transformer

                  A 750 kva ~ 2500 kva 3 phase pad-mounted transformer is a complete set of substation and distribution equipment that combines a combined transformer, a load switch and a protective fuse device for the high-voltag...

                  Beijing, 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.