A current transformer mounting connection structure

By installing a current transformer on the upper outer side of the oil tank and utilizing the riser and neutral point bushing structure, the problems of insufficient space and insulation distance of traditional built-in current transformers are solved, realizing the miniaturization of the current transformer and the reduction of the insulation level, and simplifying the manufacturing process.

CN224536828UActive Publication Date: 2026-07-21SHANDONG POWER EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG POWER EQUIP CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional built-in current transformer structures cannot accommodate multiple tap leads inside the tank, resulting in insufficient insulation distance and occupying internal tank space.

Method used

The current transformer is installed on the upper outer side of the oil tank, using a current transformer riser and neutral point bushing riser structure. The three-phase current transformer is installed on the upper right side of the oil tank cover via the riser, and the neutral point lead is connected to the bushing via an M-shaped copper rod to ensure insulation distance and space utilization.

Benefits of technology

It provides ample space for tap lead installation, meets insulation distance requirements, enables miniaturization of the current transformer, reduces insulation class, and simplifies the manufacturing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to shunt reactor technical field relates to a current transformer installation connection structure, including the current transformer elevated seat of installation on the oil tank cover, the current transformer elevated seat wall lower part inboard welds down fixed plate, welds the backing plate above down fixed plate, three -phase current transformer places on the backing plate, places the down pressure plate on three -phase current transformer, the down pressure plate is bonded pad block, pad block places the upper pressure plate, the current transformer elevated seat top installs current transformer elevated seat upper cover, installs the neutral point bushing elevated seat on the current transformer elevated seat upper cover, installs the neutral point bushing on the neutral point bushing elevated seat, has the load switch to lead single -phase neutral point lead -wire, single -phase neutral point lead -wire passes through three -phase current transformer and is sealed star connection into a three -phase neutral point lead -wire, three -phase neutral point lead -wire and neutral point bushing electric connection. The utility model current transformer does not occupy the oil tank internal space, satisfies the insulation distance between the tapping lead -wire.
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