行业组件数据 · 2026

次级绕组骨架

Insulating structural support for secondary windings in medium voltage current transformers

技术定义与适配语境
典型 次级绕组骨架 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。

A precision-engineered insulating component that provides mechanical support, electrical insulation, and thermal management for the secondary winding coil in medium voltage current transformers. It maintains precise winding geometry, prevents inter-turn short circuits, and ensures proper heat dissipation during transformer operation.

组件规格

定义
A precision-engineered insulating component that provides mechanical support, electrical insulation, and thermal management for the secondary winding coil in medium voltage current transformers. It maintains precise winding geometry, prevents inter-turn short circuits, and ensures proper heat dissipation during transformer operation.
工作原理
Provides rigid structural support to maintain winding geometry under electromagnetic forces, offers high dielectric strength to prevent electrical breakdown between turns and to ground, and facilitates heat transfer from the winding to the transformer core or cooling medium.
材料
Typically made from thermosetting plastics (phenolicepoxyor polyester resins) with mineral fillers for improved thermal and mechanical properties. May include glass fiber reinforcement for enhanced strength. Must have high Comparative Tracking Index (CTI >600V)UL94 V-0 flammability ratingand continuous operating temperature rating of 130°C minimum.
Thermal Class
Class B (130°C) or higher
Dielectric Strength
>12 kV/mm
Flammability Rating
UL94 V-0
Dimensional Tolerance
±0.1 mm
Insulation Resistance
>10^12 Ω
Comparative Tracking Index
>600 V
标准
IEC 61869IEEE C57.13ISO 9001

行业分类与别名

次级绕组骨架 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

Material impurities or voids in insulation->Partial discharge leading to insulation breakdown->Implement strict material quality control and vacuum impregnation processes
Thermal cycling stress->Cracking or deformation of bobbin structure->Use materials with matched thermal expansion coefficients and adequate thermal class rating
Inadequate dimensional precision->Improper winding tension and geometry affecting transformer accuracy->Implement precision molding with tight dimensional tolerances and regular tool maintenance

工业生态与工程逻辑

0
Electrical breakdown due to insulation failure
1
Thermal degradation under overload conditions
2
Mechanical deformation affecting winding geometry
3
Partial discharge leading to insulation deterioration

合规与检测

tolerance
Dimensional tolerance ±0.1mm, concentricity within 0.05mm, surface finish Ra < 3.2μm
test method
Dielectric strength test per IEC 60243, thermal cycling test per IEC 60068-2-14, dimensional verification with CMM, material certification with UL and RoHS compliance

制造该组件的工厂

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 secondary winding bobbin in current transformers?

The bobbin provides mechanical support to maintain precise winding geometry, electrical insulation between turns and to ground, and thermal management to dissipate heat generated during operation.

Why are specific materials required for medium voltage applications?

Medium voltage applications require materials with high dielectric strength, excellent tracking resistance, and thermal stability to prevent electrical breakdown and ensure long-term reliability under high voltage stress.

Can secondary winding bobbins be customized for different transformer designs?

Yes, bobbins are often custom-designed with specific dimensions, flange configurations, and material formulations to match particular transformer core sizes, winding requirements, and application environments.

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CNFX Industrial Component Index · 电气设备制造

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初步技术归类
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URN:CNFX:ME:UNIT:SECONDARY_WINDING_BOBBIN