HRW12-12-12-5 قاطع صمامات بوليمر بجهد 12 كيلو فولت 15 كيلو فولت قاطع صمامات بوليمر بجهد 15 كيلو فولت

المواصفات الفنية

Product Features (Core Advantages)

• Lightweight & Easy Installation: Adopt high-quality polymer insulator housing, weight only about 4.2kg, which is 1/2 of the traditional porcelain fuse cutout, greatly reducing the labor intensity of installation and hoisting, and suitable for high-altitude and difficult installation scenarios.
• Superior Anti-pollution & Corrosion Resistance: The polymer housing has excellent anti-pollution performance, with a creepage distance of 380mm (12kV) and 450mm (15kV insulation level), which can stably operate in Grade III pollution areas. It is corrosion-resistant to salt fog, humidity and chemical gases, and has better adaptability than porcelain fuse cutouts in coastal and chemical industrial areas.
• Excellent Insulation & Lightning Protection: The impulse withstand voltage reaches 125kV, and the power frequency withstand voltage is 45kV (dry test), with excellent insulation performance, which can effectively prevent insulation breakdown caused by lightning and overvoltage, and ensure the safe operation of the power system.
• Reliable Protection & Fast Arc Extinguishing: Equipped with an advanced arc-extinguishing structure and arc-extinguishing agent, the breaking current of 100A model is 8kA, and that of 200A model is 12.5kA. When overload or short circuit occurs, the fuse tube will automatically drop to form a visible break, which is convenient for maintenance personnel to quickly identify faults and improve maintenance efficiency.

Application Scenarios

• Protection of 10kV/12kV outdoor overhead distribution lines, especially suitable for rural and suburban long-span overhead feeders, which can isolate faults without triggering upstream tripping, reducing the power outage range.
• Short-circuit and overload protection of pole-mounted distribution transformers, installed directly before the transformer to protect the transformer from damage caused by downstream faults. It is suitable for 200kVA level transformers and matches the protection requirements of different capacity transformers.
• Protection of lateral tap points and spur lines of distribution lines, effectively segmenting branch lines from main feeders, minimizing the impact range of faults and improving the reliability of power supply.
• Emergency fault isolation points in power systems, when a fault occurs, the fuse tube drops to give maintenance personnel an intuitive fault prompt, which is convenient for quick troubleshooting and power restoration, improving maintenance efficiency.
• Protection of distributed power generation systems, such as photovoltaic power station collection lines and wind farm box transformer high-voltage terminals, which can adapt to the special working conditions of new energy power generation.
• Outdoor power distribution systems in industrial and mining enterprises, residential areas, and commercial districts, providing reliable protection for power supply safety. It is also suitable for coastal salt fog areas and mountainous strong wind areas with harsh environmental conditions.

Installation Notes

• The installation shall be carried out by professional electricians who have obtained relevant operation certificates to ensure safe operation and avoid electric shock accidents.
• When installing, the axis of the fuse tube shall form an angle of 25°±2° with the vertical line, and the contact pressure shall be calibrated to 80-120N to ensure good contact and avoid poor contact caused by loose installation.
• The distance between two phases shall not be less than 300mm, and the vertical distance from the ground shall be more than 5.5m to meet the safety distance requirement and prevent accidental contact.
• The lead wire shall adopt copper-aluminum transition terminal, the cross-sectional area of copper core lead wire shall not be less than 35mm², and the surface of the terminal shall be coated with power composite grease to reduce contact resistance and prevent oxidation.
• After installation, check the flexibility of the mechanical rotating parts, and ensure that the fuse tube can drop reliably when the fuse link is fused, so as to ensure the reliability of fault isolation.
• For high-altitude areas above 1000m, the rated current of the fuse shall be reduced by 0.5% for every 100m increase; for III-level pollution areas, silicon rubber anti-pollution skirts can be added to improve anti-pollution performance; for coastal salt fog areas, anti-corrosion treatment of metal parts shall be strengthened.

FAQ

• Q: What is the difference between HRW12-12-5 and traditional porcelain fuse cutouts? A: The HRW12-12-5 adopts a polymer insulator housing, which is lighter (only 1/2 of porcelain fuse cutouts), more corrosion-resistant and anti-pollution, and has better adaptability to harsh environments. It also has excellent insulation and arc-extinguishing performance, and is easier to install and maintain.
• Q: What is the difference between 12kV and 15kV of HRW12-12-5? A: The rated voltage of the product is 12kV (suitable for 10kV distribution lines), and the insulation level reaches 15kV, which means it can withstand the voltage impact of 15kV, with higher safety and wider application range, and can be used in areas with higher insulation requirements.
• Q: Can the rated current be customized? A: Yes, the standard rated current is 100A/200A, and we can provide customized services of 50A-200A according to your actual needs, which can be matched with different capacity transformers and line loads.
• Q: What is the service life of this fuse cutout? A: Under normal outdoor working conditions, the service life is more than 15 years, and the fuse link needs to be replaced regularly according to the operation condition (generally 1-2 years). The service life can be extended by regular maintenance and inspection.
• Q: Is it compatible with other brands of fuse links? A: Yes, the fuse link adopts standard size, which is compatible with most of the same type of polymer fuse cutouts on the market, and the replacement is convenient, reducing the cost of spare parts.
• Q: Does it have relevant international certifications? A: Yes, it complies with IEC 60282-2, GB/T 15166.3 and GB/T 15166.2 standards, and can provide certification reports according to customer requirements, ensuring that it meets the import and export and project acceptance standards.

After-Sales Service

• Warranty Period: 12 months from the date of delivery, free replacement of damaged parts caused by product quality problems during the warranty period, and free technical guidance for installation and maintenance.
• Technical Support: Provide professional installation guidance, operation training and fault diagnosis services, and respond to technical questions within 24 hours to solve your use problems in a timely manner.
• Spare Parts Supply: Provide long-term and stable supply of fuse links, polymer housings and other vulnerable parts at preferential prices, ensuring the normal operation of your equipment and reducing maintenance costs.
• Customization Service: According to the customer’s special needs (such as different rated current, insulation level, installation size, high-altitude and anti-pollution requirements), provide customized design and production services to meet your specific project needs.