LZZBW-10(12) Outdoor Current Transformer
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
◆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.
◆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.
◆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.
◆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.
◆Standards Compliance: Manufactured in strict accordance with GB20840.1 and GB20840.2, guaranteeing adherence to rigorous national standards for safety, performance, and reliability.