On-load tap changer

By using adhesive and press-fit connections between the shell and metal cover assembly made of fiber composite materials, the problem of shell wear under mobile conditions in OLTCs has been solved, achieving robust connection and convenient maintenance in environments such as offshore floating platforms.

CN122422962APending Publication Date: 2026-07-17HITACHI ENERGY LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HITACHI ENERGY LTD
Filing Date
2025-01-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

On-load tap changers (OLTCs) used in mobile conditions are prone to wear at the junction of the housing and fittings, which increases the risk of failure, especially in mobile applications such as offshore floating platforms.

Method used

The housing body, made of fiber composite material, is combined with first and second cover assemblies made of metal. The connection between the housing and cover assemblies is ensured by adhesive attachment and press fitting, and the housing remains robust in the face of temperature changes.

Benefits of technology

It improves the robustness of OLTC under mobile conditions, reduces the risk of wear, and ensures reliable connection and ease of maintenance over a wide temperature range.

✦ Generated by Eureka AI based on patent content.

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Abstract

一种有载分接开关（OLTC）（1），包括壳体，所述壳体包括壳体本体（4），该壳体本体具有由相应的盖组件（2、3）封闭的开口端部部分（6、7），该盖组件通过壳体本体（4）与每个相应的盖组件（6、7）的相应的凸缘之间的粘合剂附接到壳体本体（4）。
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