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Used dimension in Sonora, Mexico

  • Trusted Seller
    Control transformer 224 VA brand

    Control transformer 224 VA brand SIGNAL TRANSFORMER

    • Manufacturer: SIGNAL TRANSFORMER

    Control transformer 224 VA brand SIGNAL TRANSFORMER Technical features Chassis mounting Physical features EI laminated core Partially encapsulated winding Open metal frame Mounting via 4 ears with screw Output ca...

    Hermosillo, Mexico
  • Trusted Seller
    Current transformer 150:5 A 600V

    Current transformer 150:5 A 600V model JFD TM brand 2000

    • Manufacturer: TM 2000

    Technical characteristics Power 2.5 VA Accuracy class 1.2 Maximum voltage 600 V Frequency 60 Hz Encapsulated toroidal type Physical characteristics Toroidal core Insulating resin encapsulation black color Seconda...

    Hermosillo, Mexico
  • Trusted Seller
    Control transformer 40A model BPI

    Control transformer 40A model BPI 08520

    • Manufacturer: Sin Marca

    Control transformer 40A model BPI 08520 Technical characteristics Visible identification: Primary inputs: 400 V 408 V 416 V 424 V 433 V Physical characteristics EI laminated core Exposed winding with insulation O...

    Hermosillo, Mexico
  • Trusted Seller
    Pedestal transformer 750 KVA 13200

    Pedestal transformer 750 KVA 13200 - 480/277V brand PROLEC

    • Manufacturer: PROLEC

    Pedestal transformer 750 KVA 13200 - 480/277V brand PROLEC Technical characteristics Nominal current: Physical characteristics Pedestal-type metal cabinet for outdoor installation Independent compartments of medi...

    Hermosillo, Mexico
  • Trusted Seller
    Pedestal transformer 500 KVA 13200

    Pedestal transformer 500 KVA 13200 - 440/254V brand PROLEC

    • Manufacturer: PROLEC

    Pedestal transformer 500 KVA 13200 - 440/254V brand PROLEC Technical characteristics Nominal current: Physical characteristics Robust metal construction for outdoor installation Pedestal-type design with separate...

    Hermosillo, Mexico

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.