Medium-Voltage Current Transformers (30~36 kV)

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Medium-Voltage Current Transformers (30~36 kV) - CIC

CIC | CHALLENGE INDUSTRIAL CO., LTD., since 1974, is a global supplier of Medium-Voltage Current Transformers (30~36 kV). CIC specializes in the manufacture of instrument transformers, distribution transformers, detuned reactors, epoxy insulators, electronic energy meters, etc. Also provided or distributed are a wide range of other electrical or electronic apparatus.

Certified to ISO 9001, CIC ensures superior quality of its goods through such advanced technologies and materials as Swiss-manufactured equipment (for the production of resin insulators), Araldite® epoxy resin, and technology transferred from Messwandler-Bau (MWB) of Germany.

Backed by 43 years of experience, CIC offers custom-made products, OEM/ODM services, and technical support tailored to the needs of its discerning clientele.

Medium-Voltage Current Transformers (30~36 kV)

MV Current Transformers (30~36 kV)
MV Current Transformers (30~36 kV)

Widely used internationally in revenue and switchboard applications by engineering, construction, and power companies, CIC Current Transformers are the result of over 40 years of manufacturing expertise, combined with technology transferred from Messwandler-Bau (MWB) of Germany.

The primary insulation material for CIC's current transformers is the Araldite® epoxy resin, known for its reliability. The outdoor models make use of cycloaliphatic epoxy resin, similarly to ensure high-quality insulation.

CIC's current transformers, including OEM/ODM products, are type-tested and routine-tested by CIC-owned, TAF-accredited Advanced Electricity Laboratory (TAF, or Taiwan Accreditation Foundation, is a member of ILAC and a signatory to the ILAC MRA).

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  • Current Transformers / ERCTs for Billing (10~30kV Outdoor Type)
    Current Transformers / ERCTs for Billing (10~30kV Outdoor Type)
    AWF Series

    Used for power monitoring or as part of a MOF (Metering Outfit) for a 12~36kV power system, these outdoor CTs for billing are insulated with Araldite® UV-resistant cycloaliphatic epoxy. Accuracy 0.15S~0.3; burden B-0.5. Available as Extended Range Current Transformers (ERCTs) if requested.


  • 30kV Multi-Core Multi-Ratio Current Transformers (Indoor Use)
    30kV Multi-Core Multi-Ratio Current Transformers (Indoor Use)
    EWF-30D Series

    Suited to ≤ 36kV power systems, these multi-ratio current transformers are available in 2-core and 3-core options. Insulated with Araldite® epoxy and intended to work with measuring or monitoring instruments, or with protective relays.



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