CHALLENGE INDUSTRIAL CO., LTD.

Expert manufacturer of current transformers, voltage transformers, distribution transformers, epoxy insulators, and other electrical and electronic apparatus.

Featured Products

Optimize Your Power Solutions with High-Capacity Power Capacitors | CIC

Based in Taiwan since 1974, CHALLENGE INDUSTRIAL CO., LTD. specializes in manufacturing high-quality electrical products, including current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With over 45 years of expertise and technology collaboration with Germany's MWB, CIC is ISO certified and offers products recognized for reliability in various industrial applications.

Challenge Industrial Co., Ltd. (CIC) stands at the forefront of electrical innovation, specializing in the manufacturing of current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With a legacy built on over 45 years of engineering excellence and leveraging advanced German technology, CIC commits to delivering high-quality, ISO-certified electrical solutions. Their comprehensive product range, paired with an ISO-certified approach and a TAF-accredited laboratory, ensures reliability and performance for a diverse global market. CIC is your go-to source for electrical components that power progress and efficiency.

CIC has been offering customers high-capacity power capacitors since 1974, both with advanced technology and 50 years of experiences, CIC ensures each customer's demands are met.

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SpecificationsAction
20kV 2-Core Current Transformer (for Indoor Application in Polluted Regions)
24 kV Two-Core Current Transformer (for Polluted Regions)
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(Model: CR-20S-130A) 20kV Multi-Ratio Current Transformers, Single-Core & 2-Core Types
Multi-Ratio Current Transformers (Single-Core & Two-Core Options) for 25 kV max. Power Systems

Standards: IEC or IEEE* Indoor application; window-type design System Voltage: ≤ 25 kV Frequency: 50 or 60 Hz AC/BIL: 50/125 kV Single-ratio and multi-ratio types 2-core options available Ith = Max 43.3kA/1S

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Bushing Current Transformers for Draw-Out Circuit Breakers
Bushing Current Transformers for Draw-Out Circuit Breakers

Standards: IEEE, IEC Indoor application Epoxy cast System Voltage: ≤ 25.5 kV Frequency: 50 or 60 Hz AC/BIL: 60/125 kV Multi-ratio bushing CTs (BCTs) Ith = Max 25 kA/1S Compatibility with circuit breakers made by various manufacturers* Other Standards and Specifications available upon request.

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Current Transformers & ERCTs (Extended Range Current Transformers) for Billing, 12~36 kV Epoxy-Cast Outdoor Type
Outdoor-Type Current Transformers / Extended Range Current Transformers (ERCTs) for Revenue Metering (12~36 kV)

Standard: IEC or IEEE** Outdoor usage; Epoxy-cast type (Cycloaliphatic Resin) Frequency: 50 or 60 Hz System Voltage: 12~36 kV Rated Primary Current: 50～600 A ERCT* available by request

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30kV Multi-Core Multi-Ratio Current Transformers (Indoor Use), EWF-30 Series
36 kV Multi-Ratio Current Transformers (Indoor Use)

Standards: IEC or IEEE* Indoor usage; epoxy-cast type System Voltage: ≤ 36 kV Frequency: 50 or 60 Hz AC/BIL: 70/170 kV

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72.5 kV Outdoor Current Transformer
High-Voltage (HV) Outdoor Current Transformer, 52 kV & 72.5 kV
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Control Transformer / Low-Voltage (LV) Voltage Transformer (VT), or Potential Transformer (PT)
Control Power Transformers / Low-Voltage (LV) Voltage Transformers (Potential Transformers)
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Indoor Low-Voltage Single-Phase Voltage Transformers (Potential Transformers), S-N Series
Indoor Low-Voltage Single-Phase Voltage Transformers (Potential Transformers)
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Low-Voltage Dry-Type Control Transformers
Low-Voltage Dry-Type Control Transformers
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Coil Molded Single-Phase Voltage Transformers, or Potential Transformers, for Indoor Use (EP-3SF/6SF Series)
Coil Molded Single-Phase Voltage Transformers (Potential Transformers), Indoor Use
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Voltage Transformers, or Potential Transformers, as Circuit Breaker Operation Power Source
Voltage Transformers (Potential Transformers) as Circuit Breaker Operation Power Source
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Ground Voltage Transformer (GVT), or Ground Potential Transformer (GPT)
Three-Phase Grounding Voltage Transformer (GVT), or Grounding Potential Transformer (GPT), for MV Indoor Applications
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Single-Pole Voltage Transformers (Potential Transformers), or Three-Phase VT (PT) + GVT (GPT)
Single-Pole Voltage Transformers (Potential Transformers), or Three-Phase VT (PT) + GVT (GPT)
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12/24 kV Epoxy-Cast Voltage Transformers, or Potential Transformers, for Indoor Use. (Models: EPF-10B/20SE/20SI)
12 kV & 24 kV Epoxy-Cast Voltage Transformers (Potential Transformers) for Indoor Use
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Conductive Shield VT (PT) for 24 kV 4-Way Switchgear. Also Operation Power Source. (Model: EPF-20FB)
Conductive Shield Voltage Transformer (Potential Transformer) for 24 kV 4-Way Switchgear (Also Operation Power Source)
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Voltage Transformer, or Potential Transformer, for SF6 Gas-Insulated MOF Panel (Model: EPF-20SH)
Voltage Transformer (Potential Transformer) for SF6 Gas-Insulated MOF Panel
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12/24 kV Epoxy-Cast Voltage Transformer (Potential Transformer), Power Source for Circuit Breaker Operation and Lighting (Model: EPF-20DZ)
12 kV & 24 kV Epoxy-Cast Voltage Transformer (Potential Transformer) or Control Power Transformer, as Power Source for Circuit Breaker Operation and Lighting
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Outdoor Voltage Transformers or Potential Transformers (Epoxy Resin Cast) for Revenue Metering – Designed for MOF
Outdoor-Type Voltage Transformers (Potential Transformers) for Revenue Metering
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30 kV Epoxy-Cast Transformers (Potential Transformers), Indoor Type (Models: EPF-30SA / EPF-30SB)
36 kV Epoxy-Cast Voltage Transformers (Potential Transformers)

Standard: IEC or IEEE* Indoor usage Superior insulation and moisture resistance System Voltage: ≦ 36 kV Rated Frequency: 50 or 60 Hz Suited to salty or polluted air, high humidity and high temperature Ambient Temperature: -45~ +65℃ Approximate Weight: 65 kg

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30 kV Metal-Clad Single-Pole Voltage Transformer (Potential Transformer) for Indoor Application
36 kV Metal-Clad Voltage Transformer (Potential Transformer) for Indoor Application

Standard: IEC 61869-3 Primary Voltage: 33/√3 kV Secondary Voltage: 110/√3 V Rated Insulation Level: 36 kV Thermal Burden: 380 VA Frequency: 50 or 60 Hz AC / BIL: 70 / 170 KV Burden / Accuracy Class: 50VA / 0.5 Approximate Weight: 43 Kg

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Pole-Mounted Oil-Immersed Transformers
Pole-Mounted Transformers
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LV Oil Transformer Series
Low-Voltage Oil-Immersed Transformers
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MV Oil Transformer Series
Medium-Voltage Oil-Immersed Transformers
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Non-Ventilated Resin-Encapsulated Transformers
Non-Ventilated Resin-Encapsulated Transformers (H-Class Insulation)
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