Southeast Asia Market: Air-Insulated Switchgear Current Transformer (AIS CT) Solutions

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The power grid construction in Southeast Asia is rapidly developing, driving a surge in demand for safe, reliable, cost-effective power transmission and distribution equipment. Addressing the unique climatic conditions and power development needs of Southeast Asia, we offer tailored AIS Current Transformer solutions to enhance grid stability and operational efficiency.

​Core Pain Points & Challenges in Southeast Asia's Power System​

1. ​Harsh Climatic Conditions:​​
• ​High Temperature & Humidity:​​ Accelerates insulation aging, causes equipment corrosion, challenging long-term stability.
• ​Heavy Rainfall & Frequent Flooding:​​ Threatens equipment sealing, insulation performance, and outdoor operational safety.
• ​Coastal Salt Spray/Corrosion:​​ Easily erodes metal components, directly impacting equipment lifespan and reliability.
2. ​Infrastructure Development Disparities:​​
• ​Coexistence of Old & New Grids:​​ Requires solutions compatible with varying substation construction standards and retrofitting needs for aging equipment.
• ​Diverse Power Standards:​​ Must satisfy various national electrical codes and certification requirements (e.g., IEC 61869, ANSI, IEEE).
3. ​Cost-Effectiveness & Operational Efficiency:​​
• ​High Cost-Effectiveness Demand:​​ Market is highly cost-sensitive; requires balancing performance with price.
• ​Limited Maintenance Resources:​​ Lack of specialized technical personnel in some areas, demanding maintenance-free and easy-to-install equipment.
• ​Reliable & Continuous Power Supply:​​ Essential for supporting manufacturing/service industries; exhibits very low tolerance for outages.

​Core Advantages of Our AIS CT Solutions​

Our solution integrates cutting-edge technology with localized design, providing an optimal fit for Southeast Asian users by addressing the above challenges:

1. ​High-Reliability Design:​​
• ​Epoxy Cast Resin / Silicone Rubber Insulation:​​ Excellent weather and pollution resistance, effectively handles humidity, heat, and salt spray.
• ​Double/Multiple Sealing Structures:​​ Ensures high protection rating (IP65+), resistant to heavy rain and flooding.
• ​High-Quality Silicon Steel Sheet / Toroidal Core:​​ Precision magnetizing curve design, significantly reduces errors, providing stable metering and protection signals.
• ​Wide Temperature Range Design:​​ Guarantees stable operation from -25°C to +70°C.
2. ​Outstanding Performance:​​
• ​High Accuracy Classes:​​ Offers diverse class options like 0.1S, 0.2S, 0.5, 5P, 10P, supporting precise metering and protection.
• ​Wide Current Ratio Range:​​ Covers various load demands, supporting flexible adaptation from tens to thousands of amperes.
• ​High Dynamic/Thermal Withstand Current:​​ Ensures safety during system short-circuit faults.
• ​Low Power Output (e.g., 2.5VA):​​ Easily drives new intelligent meters.
3. ​Safe & Easy Installation/Maintenance:​​
• ​Compact & Lightweight Design:​​ Reduces space requirement in switchgear, simplifies installation and transport.
• ​Standardized Interface Design:​​ Facilitates switchgear integration and field wiring operations.
• ​High Insulation Strength Design:​​ Enhances phase-to-phase/ground safety margin, reducing fault risks.
• ​Long Service Life & Maintenance-Free:​​ Significantly reduces maintenance labor and cost pressure.
4. ​Cost-Effectiveness & Localization:​​
• ​Optimized Cost-Effectiveness:​​ Lowers costs through localized production and supply chain management.
• ​Comprehensive Certifications:​​ Fully meets electrical access standards of Southeast Asian countries.
• ​Customization Services:​​ Offers customization of interfaces, dimensions, parameter specifications to fit various standard switchgear types.

​Application Scenarios​

• ​New Substations & Distribution Stations:​​ Provides core measurement and protection components for grid expansion and upgrades.
• ​Retrofitting Old Switchgear:​​ Enhances key equipment performance with low investment.
• ​Industrial Power Access:​​ Ensures safe and reliable operation of factory and industrial park power systems.
• ​Commercial Buildings & Infrastructure:​​ Guarantees continuous power supply for critical sites like shopping malls, hospitals, and airports.

​Implementation​

1. ​Early Collaboration:​​ Engage deeply with switchgear manufacturers during the design phase to ensure precise CT compatibility.
2. ​Environmental Adaptation:​​ Strictly select material specifications suitable for local temperature, humidity, and corrosion levels.
3. ​Certification Compliance:​​ Ensure CTs meet mandatory certification requirements of the target country.
4. ​Local Support:​​ Establish a local technical support network providing spare parts supply and rapid-response maintenance.

​Success Cases​

• ​Vietnam Industrial Park:​​ Stable operation exceeding 5 years in high-temperature, high-humidity environments, supporting reliable park power supply.
• ​Thailand Grid Retrofitting Project:​​ Precision fit for old cabinet retrofits, significantly improving power supply quality.
• ​Philippines Island Power Station:​​ High corrosion resistance design ensures continuous operation of the off-grid power station.