产品概述
WB-35Q/140 3AVS 绝缘弯曲板 是一种专为35千伏高压开关设备设计的绝缘支撑部件，特别适用于1.2米开关设备配置。
It is mainly installed in the busbar compartment and contact box area to provide electrical insulation and mechanical support, helping maintain the required electrical clearances and stable operation of the high-voltage circuit.
该产品通过一体化环氧树脂浇注工艺制造，提供可靠的电气绝缘和机械强度。它是 35 千伏电压等级中关键的绝缘附件之一。 switchgear 组件
技术规格
| 参数 | 规格 |
|---|---|
| 模型 | WB-35Q/140 3AVS |
| 额定电压 | 35千伏 |
| 兼容开关设备 | 1.2-metre high-voltage switchgear, including KYN61 and similar 35 kV cabinet types |
| 材料 | Epoxy resin manufactured by APG casting |
| Colour | Red insulating protective colour |
| 电气间隙 | Meets the safety clearance requirements of 35 kV systems, ≥300 mm |
| 绝缘电阻 | ≥1,000 MΩ under normal room-temperature conditions |
| 工频耐压 | 95 kV for 1 minute, phase-to-earth |
| 雷电冲击耐受电压 | 185 kV peak, phase-to-earth |
| 机械强度 | Designed to withstand the internal electrodynamic forces generated by switchgear short-circuit conditions |
| 阻燃等级 | UL94 V-0 |
| Protection Level | Matches the switchgear enclosure, typically IP3X or IP4X |
产品特点
High Electrical Insulation Performance
The product is manufactured using an integrated epoxy resin casting process. Its smooth, uniform surface helps minimize bubbles, voids, and insulation defects.
The high dielectric strength effectively separates live conductors from grounded components, helping reduce the risk of electrical tracking, flashover, and short circuits.
Accurate Compatibility with 1.2-Metre Switchgear
The structure and mounting positions are optimized for 1.2-metre 35 kV switchgear.
The preformed mounting holes correspond with compatible cabinet structures, allowing the product to be installed or replaced without additional drilling or machining.
Reliable Mechanical Stability
The L-shaped support structure provides good resistance to bending, impact, and deformation.
It can withstand short-circuit electrodynamic forces and the mechanical stresses generated during long-term switchgear operation, helping maintain the position and stability of busbars, contact boxes, and other internal components.
Resistance to Environmental Conditions
The epoxy resin material offers good resistance to high and low temperatures, moisture, ageing, and chemical corrosion.
It is suitable for indoor substations, industrial plants, transport power systems, and other demanding indoor electrical environments.
Improved Operational Safety
The red surface makes the insulating component easy to identify during installation, inspection, and maintenance.
Rounded edges help reduce the risk of accidental scratches and handling injuries while supporting compliance with electrical equipment safety requirements.
Long Service Life and Low Maintenance
The selected insulating material offers reliable resistance to ageing, cracking, and long-term electrical stress.
Under normal operating conditions, the product can provide a service life compatible with the switchgear assembly, with minimal routine maintenance requirements.
应用
The WB-35Q/140 3AVS Insulating Bending Plate is suitable for:
- Busbar compartments of 35 kV indoor high-voltage switchgear
- Contact box areas in 35 kV switchgear
- KYN61-40.5 switchgear and similar 1.2-metre cabinet configurations
- Insulating support for busbars and other live conductors
- Electrical clearance compensation inside switchgear
- Mechanical fixing and positioning of contact boxes
- Electric field distribution optimization
- Compatible ABB-type and other mainstream 35 kV switchgear configurations
- Urban substations
- Industrial and mining power systems
- Rail transit power distribution systems
- Renewable energy power stations
- Other 35 kV power distribution applications
操作条件
环境条件
| Condition | Requirement |
|---|---|
| 环境温度 | -40°C 至 +85°C |
| Short-Term Temperature Resistance | Up to +120°C |
| 相对湿度 | ≤95% at 25°C |
| Installation Altitude | ≤3,000 m |
| 安装位置 | Indoor |
| 冷凝 | Not permitted |
| Corrosive Gases | Not permitted |
| Severe Vibration or Impact | Not permitted |
| Flammable or Explosive Media | Not permitted |
For installations above 3,000 metres, equipment derating, insulation coordination adjustment, or a customized product configuration may be required.
电气状况
| 参数 | Requirement |
|---|---|
| 额定系统电压 | 35千伏 |
| 额定频率 | 50 赫兹 |
| Short-Time Withstand Current | 25–40 kA, depending on the switchgear rating |
| Peak Withstand Current | 65–100 kA, depending on the switchgear rating |
The product must be used within the specified voltage and current parameters of the complete switchgear assembly.
安装要求
Before installation, clean the mounting surface inside the switchgear. Remove oil, dust, moisture, metal particles, and other contaminants.
Install the product using suitable bolts and tighten them according to the switchgear assembly specifications.
The fastening force must be applied evenly. Excessive or uneven tightening may produce installation stress and cause cracking or deformation of the insulating component.
After installation, inspect the electrical clearance between the bending plate, live components, grounded parts, and the switchgear enclosure. Confirm that all clearances meet the applicable requirements for a 35 kV system.
The product must not be installed, removed, or adjusted while the equipment is energized. All work must be completed according to the required power isolation, grounding, and high-voltage safety procedures.
Inspection and Maintenance
The product requires minimal routine maintenance under normal operating conditions. However, its condition should be inspected during scheduled switchgear maintenance.
Inspection items include:
- Surface cracks
- Mechanical damage
- Electrical tracking marks
- Carbonization
- Arc erosion
- Surface contamination
- Moisture accumulation
- Loose mounting bolts
- Abnormal deformation
- Reduced electrical clearance
Clean the surface using a dry, soft, lint-free cloth. Do not use corrosive solvents, abrasive tools, or metal cleaning equipment.
Stop using the product and replace it immediately if cracks, severe ageing, tracking marks, carbonization, deformation, or other insulation defects are found.
安全注意事项
- Avoid impact, compression, dropping, and improper stacking during transportation and storage.
- Do not strike, pry, bend, or force the product into position during installation.
- Do not drill additional holes, cut the structure, or modify the mounting dimensions.
- Keep the product away from sharp metal objects and corrosive chemicals.
- Do not install or remove the product while the equipment is energized.
- Installation and maintenance must be carried out by qualified electrical personnel.
- Replace the product immediately if surface cracking, tracking, carbonization, or other abnormal conditions are detected.
- Always use a replacement with the same model, dimensions, voltage rating, and insulation performance.
Selection and Ordering Information
| 物品 | Details |
|---|---|
| 产品型号 | WB-35Q/140 3AVS |
| Standard Compatibility | 1.2-metre 35 kV high-voltage switchgear |
| Typical Switchgear Type | KYN61-40.5 and compatible cabinet structures |
| 材料 | APG-cast epoxy resin |
| 定制 | Customized versions are available for other switchgear dimensions, including 1.4-metre configurations |
