行业组件数据 · 2026

中心导体

Central conductor is the core conductive element in high-voltage bushings that carries electrical current through insulated barriers.

技术定义与适配语境
典型 中心导体 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

The central conductor is a critical component of high-voltage bushings, designed as a cylindrical or rod-shaped conductive element that transmits electrical power through insulating barriers while maintaining electrical isolation from grounded structures. It serves as the primary current path in transformer, circuit breaker, and switchgear applications, engineered to withstand high electrical stresses and thermal loads.

组件规格

定义
The central conductor is a critical component of high-voltage bushings, designed as a cylindrical or rod-shaped conductive element that transmits electrical power through insulating barriers while maintaining electrical isolation from grounded structures. It serves as the primary current path in transformer, circuit breaker, and switchgear applications, engineered to withstand high electrical stresses and thermal loads.
工作原理
The central conductor operates by conducting electrical current through the center of the bushing assembly while being surrounded by insulating materials that prevent electrical discharge to grounded components. It maintains a controlled electric field distribution through precise geometry and material selection, minimizing corona discharge and partial discharge at high voltages.
材料
High-conductivity copper (C10100C11000) or aluminum (13506101) alloysoften with silver plating for enhanced surface conductivity and corrosion resistance. Insulation interfaces may use epoxy-bonded or compression-fitted designs.
BIL
350kV to 2400kV
Current Rating
600A to 4000A
Diameter Range
20mm to 150mm
Voltage Rating
69kV to 800kV
Creepage Distance
As per IEC 60137
Temperature Class
Class B (130°C) to Class H (180°C)
标准
IEC 60137IEEE C57.19.00IEC 62271DIN 42523

行业分类与别名

中心导体 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Surface contamination or roughness->Corona discharge and insulation degradation->Implement precision machining, surface polishing, and cleanroom assembly procedures
Inadequate thermal design->Overheating and material degradation->Conduct thermal modeling, use high-temperature materials, and implement temperature monitoring
Mechanical vibration->Fatigue cracking and connection loosening->Design with vibration-resistant mounting and regular torque verification

工业生态与工程逻辑

0
Partial discharge due to surface imperfections
1
Thermal runaway under overload conditions
2
Corrosion at conductor-insulation interface
3
Mechanical stress from thermal cycling

合规与检测

tolerance
Diameter tolerance ±0.1mm, straightness <0.05mm per 100mm length
test method
Partial discharge testing per IEC 60270, temperature rise testing per IEEE C57.19.00, power frequency withstand voltage test

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来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of a central conductor in high-voltage bushings?

The central conductor serves as the main current-carrying path through the bushing while maintaining electrical isolation from grounded parts through surrounding insulation materials.

What materials are commonly used for central conductors?

High-conductivity copper alloys are most common for optimal electrical performance, while aluminum alloys are used for weight reduction in certain applications, often with silver plating for surface enhancement.

How does central conductor design affect bushing performance?

Conductor geometry, surface finish, and material selection directly impact electric field distribution, thermal management, and partial discharge characteristics, affecting overall reliability and lifespan.

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初步技术归类
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