BH0.66-I Busbar Type Current Transformer Supports Accurate Power Monitoring and Protection

The Busbar Type Current Transformer BH0.66-I from Jiangyin Yucheng Electric Co., Ltd. is mainly designed for cables and copper bars in electrical main circuits. With a simple structure, reasonable design, and flexible application, this series is suitable for current measurement, power monitoring, energy consumption management, and electrical protection. According to different cable and copper-bar requirements, the product provides multiple specifications with primary current ranges from 5A to 6000A.

Electrical Performance and Technical Specifications

The BH0.66-I current transformer provides different configurations to meet various measurement and protection requirements:

• Primary current: 5A–6000Arms 
• Secondary output: 1A–5A 
• Output option: 0–1V 
• Accuracy class: 0.2, 0.5, Class 1 and other precision requirements 
• Ratio difference: ≤±0.1% 
• Phase difference: ≤±10 points 
• Working frequency: 50–400Hz 
• Highest equipment voltage: 0.66/0.72KVrms 
• Dielectric strength: 2.5KV/1mA/1min 
• Insulation resistance: DC500V/1000MΩ/min 
• Iron core: Nickel or nanocrystalline 
• Shell: ABS, flame retardant grade 94-V0 
• Skeleton: PBT 
• Internal structure: Environment-friendly epoxy resin casting 
• Working temperature: -12℃ to +45℃ 
• Ambient humidity: ≤85% 

These parameters provide users with the basic information required for selecting a suitable current transformer according to electrical system requirements.

Key Applications

The BH0.66-I current transformer is mainly used with cables and copper bars. Its application areas include:

• Power monitoring 
• Energy consumption management 
• Intelligent power systems 
• Electromagnetic relay protection 
• Microcomputer protection 
• Motor protection 
• Rural power grid transformation 

The product can be applied in electrical systems where current signals are required for monitoring, management, and protection purposes.

Structural and Installation Advantages

Solid-Core Structure

The BH0.66-I series adopts a solid-core structure designed for stable and high-precision current measurement. The integrated core design provides excellent magnetic performance and reliable signal conversion, making it suitable for applications requiring higher accuracy and long-term stability.

With a fixed through-hole structure, the transformer is mainly used for cables and copper bars in electrical main circuits. Different specifications are available to meet various primary current requirements and conductor arrangements.

The solid-core design helps improve measurement accuracy and reduce signal deviation, providing a reliable solution for power monitoring, energy management, protection systems, and other electrical measurement applications.

Multiple Specifications

This series includes seven specifications, with a primary current range within 6000A. Users can select the appropriate model according to the current requirements and installation conditions of the electrical system.

Flexible Signal Output

The product supports secondary output options including 1A–5A and 0–1V. These output signals can be connected with corresponding monitoring or protection equipment according to system requirements.

Materials and Internal Design

The transformer uses an ABS shell with flame retardant grade 94-V0, a PBT skeleton, and an environment-friendly epoxy resin casting internal structure. The iron core is available in nickel or nanocrystalline material to meet different application requirements.

Screw Fixation

The construction plan adopts screw fixation, providing a stable installation method for electrical equipment applications.

Conclusion

The BH0.66-I Busbar Type Current Transformer is designed for cable and copper-bar electrical systems, offering seven specifications and a primary current range from 5A to 6000A. With its Solid-Core structure, flexible output options, multiple accuracy levels, and reliable structural design, the series is suitable for power monitoring, energy management, protection systems, and other electrical applications.

For users requiring accurate current measurement and monitoring solutions in cable and copper-bar systems, the BH0.66-I series provides a practical current transformer choice based on different electrical requirements.

Contact us for detailed product specifications, installation information, or customization support.