On-Load Tap Changer Switching Module With Plate-Separated Contacts
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Solution Overview
Problem
Existing on-load tap-changers have a diverter switch and selector that occupy significant installation space due to the separate arrangement of vacuum interrupters and main switching contacts, leading to inefficiencies in space utilization and material usage.
Innovation Solution
A compact switching module design for on-load tap-changers, featuring a vacuum interrupter on one side of a plate and a bridge switch directly behind it on the other side, optimizing space usage and ensuring reliable insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vacuum interrupters and main switching contacts are arranged separately in different planes, then reliable insulation is achieved, but installation space increases significantly
Solution Approach 1:
The patent combines the vacuum interrupter and main switching contacts into a single integrated switching module. The vacuum interrupter is arranged on a first side of a plate and the bridge switch (containing main switching contacts) is arranged on a second side of the plate, merging two previously separate components into one compact unit while maintaining their functional independence and insulation reliability.
2Ease of manufacture
If long wiring lines and sliding contacts are used to connect vacuum interrupters and main switching contacts, then electrical connections are established, but material usage increases and reliability decreases
Solution Approach 1:
By integrating the vacuum interrupter and main switching contacts within the same switching module separated by a plate, the patent eliminates the need for long wiring lines and sliding contacts. The compact arrangement allows for direct, short electrical connections, reducing material usage and improving connection reliability.
3Reliability
If vacuum interrupters and main switching contacts are arranged far from each other, then insulation is maintained, but device complexity increases
Solution Approach 1:
The patent introduces a plate as an intermediary component between the vacuum interrupter and the main switching contacts. This plate serves as both a structural support and an insulation barrier, allowing the components to be positioned close together while maintaining adequate insulation. The plate simplifies the overall structure by providing a common mounting surface and eliminating the need for complex insulation arrangements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The compact switching module design reduces installation space requirements, saves materials, and maintains reliable operation by ensuring secure insulation and preventing voltage flashovers.
Implementation Method 1
a vacuum interrupter (10)
Data Source
AI summary
A switching module is for an on-load tap-changer. The switching module has: a plate having a first side and a second side that is opposite the first side; a vacuum interrupter; and a bridge switch. The vacuum interrupter is on the first side, and the bridge switch, which is directly behind the vacuum interrupter, is on the second side.