Buy Advanced Current Transformers from a Trusted Factory Supplier

Current transformers (CTs) are core infrastructure equipment in high-voltage power transmission and distribution systems. Usune, a professional electrical equipment manufacturer in China, focuses on the research, development, production, and customization of various high and low voltage current transformers. This outdoor CT is optimized for complex outdoor operating conditions, withstanding wind, rain, frost, high temperatures, and other harsh weather conditions. It maintains stable performance during long-term outdoor operation, effectively solving the industry challenge of directly measuring high-voltage, high-current signals.

The core principle of the product is precise current reduction of high-voltage, high-current signals, outputting a standardized small current. It is compatible with mainstream instruments and protection relays, providing reliable data support for power grid metering, power quality analysis, and fault protection. It is a key supporting device for the intelligent and safe operation of the power grid.

Main Structure and Materials

The Usune outdoor current transformer adopts an integrated, compact structure with high overall rigidity and a reasonable layout. The core structure includes five main components: primary winding, secondary winding, high-precision iron core, insulating shell, and sealed junction box.

The product shell uses high-performance silicone rubber or ceramic insulation material, possessing excellent anti-aging, waterproof, stain-resistant, and corrosion-resistant properties. It can prevent shell aging and insulation breakdown caused by long-term outdoor exposure to sunlight and rain. The internal insulation materials undergo rigorous electrical testing, ensuring stable insulation performance during long-term operation, significantly reducing the probability of equipment failure and extending service life.

Core Functions

1. Precise Current Conversion

Accurately reduces the high-voltage primary current to a standard 1A or 5A secondary current, perfectly adapting to the ranges of conventional power meters and protective relays, achieving standardized and precise acquisition and detection of grid current.

2. Electrical Safety Isolation

Achieves physical isolation between the high-voltage primary circuit and the low-voltage secondary circuit, isolating high-voltage safety risks, ensuring the personal safety of maintenance personnel, and preventing damage to low-voltage precision measuring equipment from high-voltage breakdown, thus strengthening the safety defense line for grid operation.

3. Grid Signal Sampling

Utilizing high-precision sensing and conversion capabilities, it provides real-time, accurate, and stable current signals for power metering, power quality analysis, grid load monitoring, and line fault protection, supporting intelligent grid dispatching and rapid fault handling, and improving system operating efficiency.

Core Product Advantages

1. Strong Environmental Adaptability

Designed specifically for outdoor high-voltage scenarios, it can adapt to various harsh working conditions and is suitable for high-voltage overhead lines, outdoor substations, and large and medium-sized power plants.

2. Stable and Durable Structure

Utilizing a compact, integrated structure and fully sealed technology, it boasts excellent shock resistance, pressure resistance, and corrosion resistance, making it resistant to deformation and damage even in harsh environments.

3. High Precision and Wide Measuring Range

Equipped with a high-precision iron core and optimized winding technology, it offers accurate measurements, a wide dynamic range, and stable long-term operating parameters with no data drift.

4. Simple Operation and Maintenance, Low Cost

The equipment has a long service life, requires minimal daily maintenance, and offers convenient and efficient on-site installation and commissioning, effectively reducing the long-term operation and maintenance costs of power grid equipment.

Application Scenarios

This product is widely compatible with outdoor high-voltage power facilities at various levels, including 10kV, 35kV, 110kV, and 220kV. It can be applied to core equipment scenarios such as outdoor high-voltage switchgear, transmission towers, and substation bays, comprehensively covering urban power grids, industrial power supply, and regional power transmission projects. Based on its reliable product quality, Usune has become a leading global supplier of high-voltage power equipment, providing safe and stable supporting solutions for various power grid projects.

FAQ

Q1: What extreme environments can Usune outdoor current transformers adapt to?

The product adopts a fully sealed structure and high-performance insulation materials, enabling it to stably adapt to extreme outdoor conditions such as strong winds, heavy rain, frost, and alternating high and low temperatures. It possesses excellent resistance to pollution, corrosion, and aging, and can operate stably for extended periods in complex areas such as humid coastal regions, high-temperature inland areas, and industrial pollution zones, with no significant performance degradation throughout its entire lifespan.

Q2: What voltage levels are Usune current transformers compatible with?

The product range covers all mainstream high-voltage levels: 10kV, 35kV, 110kV, and 220kV, including both indoor and outdoor series, suitable for various scenarios such as switchgear, substations, transmission lines, and power stations. Custom production based on specific customer voltage and parameter requirements is also supported.

Q3: What are the core advantages of Usune products compared to ordinary current transformers?

First, it offers higher measurement accuracy and a wider dynamic range, ensuring precise sampling data and effectively avoiding measurement errors and protection failures caused by data deviations. Second, it boasts stronger weather resistance and structural stability, exhibiting a low failure rate under harsh outdoor conditions and excellent seismic and corrosion resistance. Third, it has a long service life, extremely low operation and maintenance costs, and simple installation and commissioning, which can significantly reduce the overall operating costs of power grid equipment and improve the economic benefits of the project.