China LZZBW-10(110kV/12kV Outdoor Current Transformer - Reliable Power Supply Solution from Suppliers & Factory
Product Functions
This outdoor current transformer serves as a multifunctional interface between high-voltage power lines and low-voltage monitoring equipment. Its primary role is to accurately sense and convert primary currents into standardized, isolated secondary signals for various downstream applications. It delivers high-precision signals (0.2S class) for revenue metering and energy analytics, supplies reliable measurement data (0.5 class) for system monitoring instruments, and provides two independent protection-grade outputs (10P class) to enable redundant or separate relay protection circuits, thereby enhancing overall grid safety and fault response.
Applicable Environment
Engineered explicitly for harsh outdoor conditions, the LZZBW-10(12) is ideally suited for applications in exposed medium-voltage distribution systems. It is commonly installed in pole-mounted switchgear, outdoor substation yards, and as part of renewable energy grid connection points for solar or wind farms. Its design is particularly advantageous for high-altitude installations, operating reliably at elevations up to 3500 meters, making it a robust choice for power distribution projects in mountainous, coastal, and other challenging geographical locations.
Product Highlights
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Multi-Function Integration
Integrates four distinct functionalities — precision metering (0.2S), system measurement (0.5), and dual protection (10P/10P) — within a single compact device, significantly simplifying system design, reducing footprint, and lowering installation costs.
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Superior Weatherproof Durability
The high-grade outdoor epoxy resin casting provides a fully sealed, monolithic insulation body with excellent resistance to moisture, UV radiation, pollution, thermal cycling, and mechanical impact, ensuring a long service life with minimal maintenance.
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High-Altitude Operation
Certified for reliable performance at altitudes ≤3500 meters, addressing the specific insulation and performance challenges of mountainous and plateau power grid applications.
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Broad Application Flexibility
Offers exceptional versatility with a wide primary current range (5~1500A) and selectable secondary outputs (5A or 1A), accommodating diverse load profiles and simplifying inventory management for various project requirements.
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Standards Compliance
Manufactured in strict accordance with GB20840.1 and GB20840.2, guaranteeing adherence to rigorous national standards for safety, performance, and reliability.
Frequently Asked Questions
The LZZBW-10(12) supports multiple accuracy classes within a single unit: 0.2S class for high-precision revenue metering, 0.5 class for general system measurement, and dual 10P class outputs for relay protection purposes, making it a truly multi-functional device.
Yes. The LZZBW-10(12) is specifically certified for reliable operation at altitudes up to 3500 meters. Its insulation and performance parameters are designed to meet the challenges of reduced air pressure and temperature extremes found in mountainous and plateau environments.
The LZZBW-10(12) accommodates a wide primary current range from 5A to 1500A, with selectable secondary output ratings of either 5A or 1A. This flexibility allows it to suit a broad variety of distribution system load profiles and project specifications.
The LZZBW-10(12) is manufactured in strict accordance with GB20840.1 and GB20840.2, which are Chinese national standards governing the general requirements and current transformers specifically. This ensures the product meets rigorous benchmarks for safety, accuracy, and long-term reliability.
This transformer is commonly deployed in pole-mounted switchgear, outdoor substation yards, and renewable energy grid connection points such as solar or wind farm installations. Its weatherproof epoxy resin construction makes it well-suited for exposed, harsh outdoor environments in various geographical locations.
The high-grade outdoor epoxy resin casting creates a fully sealed, monolithic insulation body that provides excellent resistance to moisture ingress, UV radiation, environmental pollution, thermal cycling, and mechanical impact. This results in a long operational service life with minimal maintenance requirements, even in demanding outdoor conditions.