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BH-0.66 type Low Voltage Current Transformer
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BH-0.66 Type low voltage current transformer.jpg

BH-0.66 type Low Voltage Current Transformer

The BH-0.66 Low Voltage Current Transformer is a precision instrument designed for accurate measurement and protection in 660V systems. With an exceptionally wide primary current range (50A-4000A), it delivers reliable 5A or 1A secondary outputs. Available in high-precision 0.2S and 0.5 accuracy classes, it supports both 50Hz and 60Hz power frequencies. Manufactured standards, this compact transformer ensures dependable performance for energy metering, system monitoring, and circuit protection applications.

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    Product Details

    Product Functions

    This transformer serves two essential roles in low-voltage networks. It enables high-accuracy energy measurement (0.2S class) for precise revenue metering and power consumption analysis. It provides reliable current signals for system monitoring and protection (0.5 class), facilitating load tracking and enabling protective devices to detect abnormal conditions. Its versatile current transformation capability makes it suitable for applications ranging from individual circuit monitoring to main distribution feeder measurement.

    Applicable Environment

    Designed for low-voltage power distribution systems up to 660V, the BH-0.66 is ideal for installation in switchgear panels, distribution cabinets, motor control centers, and renewable energy systems. It is widely used across industrial plants, commercial buildings, data centers, and solar installations. Suitable for both indoor and protected outdoor environments, this transformer meets the demanding requirements of modern electrical infrastructure where space efficiency and measurement accuracy are critical considerations.

    Product Highlights

    ◆Exceptional Range Flexibility: Covers an extensive primary current spectrum from 50A to 4000A, accommodating applications from small commercial circuits to large industrial main feeders with a single product solution.

    ◆Dual-Precision Capability: Offers both 0.2S class and 0.5 class options, providing cost-effective solutions for different accuracy requirements without compromising performance.

    ◆Global System Compatibility: Supports international power standards with 50Hz/60Hz frequency adaptability and selectable 5A/1A secondary outputs, ensuring seamless integration with protective relays and meters worldwide.

    ◆Robust Electrical Protection: Features 3kV/1min power frequency withstand voltage capability, ensuring reliable insulation performance and durability under transient overvoltage conditions in electrical distribution environments.

    ◆Certified Quality Assurance: Manufactured in strict compliance with GB/T20840.1 and GB/T20840.2 standards, guaranteeing adherence to national benchmarks for accuracy, safety, and electromagnetic performance.