Zero-Phase Current Transformers (ZCT) for Ground-Fault Protection

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Zero-Phase Current Transformers (ZCT) for Ground-Fault Protection - CIC

CIC | CHALLENGE INDUSTRIAL CO., LTD., since 1974, is a global supplier of Zero-Phase Current Transformers (ZCT) for Ground-Fault Protection. 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 44 years of experience, CIC offers custom-made products, OEM/ODM services, and technical support tailored to the needs of its discerning clientele.


Zero-Phase Current Transformers (ZCT) for Ground-Fault Protection

EZ Series

Designed to protect the power system against leakage and earth faults, these zero-phase current transformers (ZCT) come in various window diameters. Epoxy-cast coil.

About the Product

These zero-phase molded current transformers protect the power system against leakage and earth faults. Each of these current transformers has an insulation level of 0.72 kV and requires a suitably insulated primary conductor. When the leakage current at the CT primary reaches a certain level, the CT secondary provides the necessary current signal or voltage signal – according to the type of protective relay in use – for the protection of the power system. EZ Series products are available in various window diameters.

Specifications

  • Standards: JEC, IEC or IEEE
  • Indoor application
  • For a grounded or ungrounded system (see table below)
  • Insulation: Araldite® epoxy resin
  • Insulation Level: 0.72 kV
  • Frequency: 50/60 Hz
  • Other standards and specifications available upon request

Selection Table

Zero-Phase Current Transformers for Ground-Fault Protection - Product Designs
Selection Table (Zero-Phase Current Transformers for Ground-Fault Protection)


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