Transformer Tap Change Link Mechanism for Rapid Voltage Reconfiguration
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Solution Overview
Problem
Existing transformer configurations for multi-phase power systems require cumbersome and time-consuming procedures to change voltage taps, making them error-prone and inefficient for rapidly selecting between multiple secondary voltages.
Innovation Solution
A transformer design featuring a tap change link mechanism that allows for rapid reconfiguration of secondary voltage taps by mechanically coupling to lug landings and secondary voltage stabs, enabling easy switching between different voltage configurations without disconnection of cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cables are disconnected and reconnected to change voltage taps, then voltage configuration changes are achieved, but the process becomes time-consuming and error-prone
Solution Approach 1:
A movable conductor bridge is introduced as an intermediary component that can be rapidly repositioned between different voltage tap points. This bridge serves as a mediator that establishes electrical connections without requiring cable disconnection, thereby enabling quick voltage configuration changes while eliminating the time-consuming manual connection process
Solution Approach 2:
The conductor bridge is designed to be movable rather than fixed, allowing it to dynamically reposition between different voltage tap points on the winding. This dynamic capability enables rapid adaptation to different voltage requirements by simply moving the bridge to the desired tap position, significantly reducing configuration change time
2Adaptability or versatility
If manual cable disconnection and reconnection is used for voltage tap changes, then voltage selection is achieved, but the operation becomes cumbersome and error-prone
Solution Approach 1:
The movable conductor bridge acts as an intermediary that simplifies the voltage selection operation. Instead of manually disconnecting and reconnecting cables to different tap points, the operator simply moves the bridge to the desired position, making the operation much easier and less error-prone
Solution Approach 2:
The complex cable disconnection and reconnection operations are extracted from the voltage selection process. The movable conductor bridge assumes the function of establishing electrical connections, allowing voltage selection to be achieved through simple repositioning rather than repeated cable manipulation
Data Source
AI summary
A transformer configured to receive a primary incoming voltage and provide at least two secondary output voltages. The transformer includes at least one secondary output assembly which includes at least two secondary voltage stabs, the number of voltage stabs being the same as the number of secondary output voltages, connected and configured to provide access to a respective secondary output voltage. The chosen secondary output voltage is connected by coupling a tap change link between a lug landing and either of the at least two secondary voltage stabs. Another of the secondary output voltages is provided by connecting coupling the tap change link between the lug landing and the other of the at least two secondary voltage stabs.