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- 产品简介
- 技术规格
- 应用领域
- 测试能力
- 包装与定制
产品详情
Wishpower HRW5-40.5kV drop-out fuse is designed for 35kV / 40.5kV distribution networks. It provides overcurrent and short-circuit protection for overhead distribution lines and transformers. After fault interruption, the fuse tube drops visibly, helping maintenance teams identify the faulted section and carry out inspection or replacement more efficiently.
Key advantages include:
High-strength insulation support for reliable electrical and mechanical performance.
Suitable for outdoor installation under rain, UV exposure, pollution, and temperature variation.
Clear drop-out indication after fuse operation for easy inspection.
Compact structure and convenient pole-mounted installation.
Available with polymer housing or porcelain housing according to project requirements.
Suitable for transformer protection, line sectional protection, and branch line protection.
Core Features
Reliable High Voltage Protection
The HRW5-40.5kV drop-out fuse is suitable for outdoor high voltage distribution lines and provides fast protection against overload and short-circuit faults.Visible Isolation Point
After operation, the fuse tube drops down and forms a clear visual break, making fault identification and maintenance easier.Excellent Weather Resistance
The product is designed for long-term outdoor service and can withstand heat, cold, humidity, pollution, and UV exposure.Stable Insulation Performance
The insulation body can be made of polymer composite material or porcelain, meeting different project requirements for insulation strength and environmental adaptability.Flexible Installation
It can be used for distribution lines, pole-mounted transformers, substation feeders, branch lines, and outdoor distribution systems.Low Maintenance Cost
The simple structure, replaceable fuse element, and visible operation status help reduce routine maintenance costs.
Product Structure
The HRW5-40.5kV drop-out fuse generally consists of the following components:
Insulation Support: Provides main insulation support, available in polymer or porcelain type.
Upper Contact Assembly: Connects to the line side and ensures stable electrical contact.
Lower Contact Assembly: Supports the fuse tube and maintains current conduction.
Fuse Tube: Contains the fuse link and supports arc extinction during fault interruption.
Fuse Link: Selected according to rated current and protection requirements.
Mounting Bracket: Used for pole-mounted or structure-mounted installation, usually hot-dip galvanized.
Terminal Connectors: Used for connection with conductors, cables, or equipment terminals.
Arc-Extinguishing Structure: Helps elongate and extinguish the arc during fuse operation.
技术参数
| Parameter | Application Range |
|---|---|
| Product Model | HRW5-40.5kV Drop-Out Fuse |
| Rated Voltage | 40.5kV |
| Applicable System | 35kV / 40.5kV high voltage distribution system |
| Product Type | Outdoor high voltage drop-out fuse |
| Installation Method | Pole-mounted, structure-mounted, outdoor distribution installation |
| Rated Frequency | 50Hz / 60Hz |
| Rated Current | Selected according to project requirements |
| Fuse Link Specification | Configured according to line protection and transformer capacity |
| Insulation Structure | Polymer housing or porcelain housing |
| Service Environment | Outdoor, overhead line, distribution area, substation |
| Main Function | Overload protection, short-circuit protection, isolation protection |
| Applicable Equipment | Distribution line, distribution transformer, cable branch, outdoor switchgear |
| Structural Feature | Drop-out fuse tube, visible disconnection, easy inspection |
| Anti-Corrosion Treatment | Hot-dip galvanized fittings and mounting brackets available |
| Maintenance Method | Fuse link replacement, regular inspection, contact checking |
产品结构
主要应用领域
The HRW5-40.5kV drop-out fuse is widely used in the following industries and applications:
High voltage distribution line protection
Overhead line branch protection
35kV / 40.5kV outdoor distribution systems
Primary-side protection of distribution transformers
Pole-mounted transformer stations
Substation feeder protection
Rural and urban distribution networks
Industrial and mining power distribution systems
Wind farm collection lines
Solar power plant step-up distribution lines
Cable branch and cable terminal protection
Protection for outdoor switchgear systems
测试能力
Wishpower carries out strict production inspection and performance testing for HRW5-40.5kV drop-out fuses to ensure stable operation in high voltage distribution networks.
Appearance and Structure Inspection: Checks product appearance, assembly quality, fittings, and surface treatment.
Power Frequency Withstand Voltage Test: Verifies insulation performance under specified high voltage test conditions.
Partial Discharge Test: Evaluates insulation stability under high voltage operation.
Mechanical Strength Test: Checks the reliability of insulation support, mounting brackets, and contact assemblies.
Contact Performance Test: Tests the stability and conductivity of upper and lower contacts.
Fuse Tube Operation Test: Verifies smooth, reliable, and visible drop-out action.
Thermal Stability Check: Evaluates temperature rise performance under continuous operating current.
Weather Resistance Evaluation: Tests resistance to pollution, UV exposure, humidity, and outdoor aging conditions.
Factory Inspection: Key inspection items are completed before delivery to ensure consistent product quality.
包装与运输
为确保产品在运输和储存过程中的安全，我们采用以下包装方法：
- 独立包装: 每件产品均用保护膜包裹，装入高强度纸箱，并用缓冲材料进行缓冲。
- 托盘包装: 多个产品固定在木托盘上，并用拉伸膜包裹，适合集装箱运输。
- 出口包装: 根据海运要求提供熏蒸木箱、防潮处理和详细的装箱单。
定制服务
WishPower可根据客户需求提供以下定制选项：
- 结构尺寸: 调整总高度、爬升高度、棚架数量和棚架直径。
- 端部配件: 根据连接要求定制球窝、舌形接头、环眼或其他接口类型。
- 颜色: 标准灰色，红色、黄色、蓝色等其他颜色可根据最低起订量提供。
- 特殊环境: 适用于极寒（-60°C）、强紫外线照射、严重污染和其他恶劣条件的配方。
- 电压等级: 10kV 至 1000kV 全范围定制。
- 标记: 客户的标志或型号可以模压或印刷在产品上。
如有任何定制需求，请联系我们的销售工程师。我们将在24小时内提供技术解决方案。
FAQ
Q: Can you supply complete products for transmission and distribution projects?
A: Yes. We can provide composite insulators, surge arresters, fuse cutouts, insulating bushings and related power insulation products.
Q: Can you provide customized insulation products?
A: Yes. WishPower supports customized voltage ratings, creepage distances, fittings, colors and drawings according to project requirements.
Q: What information should I provide for a quotation?
A: Please provide voltage level, product type, quantity, application environment, standard, drawings or technical specifications if available.
Q: Are composite insulators suitable for coastal areas?
A: Yes. Composite insulators with silicone rubber housing provide good hydrophobicity and anti-pollution performance, making them suitable for coastal and polluted environments.
Q: How do I choose the right composite insulator for my project?
A: You can provide voltage level, installation type, mechanical load, creepage distance and operating environment. Our team will recommend the suitable model.
