Transformer for integrated distribution transformer area
By adopting pluggable high-voltage bushings and resin-cast dry-type low-voltage bushings in integrated distribution substation transformers, combined with the design of support devices and voltage regulating tap changers, the problem of unreliable connection of traditional transformer outgoing bushings has been solved, achieving higher power supply reliability and operational safety.
WO2026123516A1 Publication Date: 2026-06-18WUJIANG TRANSFORMER CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- WUJIANG TRANSFORMER CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
The unreliable bushing connection of the transformer in the traditional pole-mounted substation area leads to localized overheating.
⚗Method used
The design employs pluggable high-voltage bushings and resin-cast dry low-voltage bushings, combined with support devices and voltage regulating tap changers, to achieve a reliable connection between high-voltage and low-voltage outgoing lines.
🎯Benefits of technology
It improves power supply reliability and operational safety, reduces the probability of line flashover discharge and the risk of personal injury, and simplifies the on-site installation and maintenance process.
✦ Generated by Eureka AI based on patent content.
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Abstract
The present invention relates to the field of transformer lead exit structures. Specifically disclosed is a transformer for an integrated distribution transformer area, comprising: an oil tank, a three-phase coil arranged in the oil tank, a low-voltage bushing group and a high-voltage bushing group that are arranged outside the oil tank, and a lead exit assembly connected to the three-phase coil. The high-voltage bushing group comprises an A-phase bushing, a B-phase bushing and a C-phase bushing which are arranged on a tank cover of the oil tank, and the structures and arrangement modes of the A-phase bushing, the B-phase bushing and the C-phase bushing are the same; and a pressure disc is arranged between the A-phase bushing and the tank cover of the oil tank, the pressure disc is a circular fixing member provided with an opening, and the opening of the pressure disc is arranged downwards. In the present invention, a pluggable single-pass bushing is used for high voltage lead exit, and a cast-resin dry type bushing is used for lower voltage lead exit, full insulating and full shielding are achieved, the influence of external pollution conditions is avoided, and the probability of flashover discharge on a line is reduced; and the risk of personal injury caused by human electric shock and failures is reduced, and the power supply reliability and operation safety are improved.
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