Transformer Test Device with Automated Switching
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Solution Overview
Problem
Transformer testing requires manual rewiring to short-circuit windings, which is time-consuming and complex, especially in power plants or substations, necessitating a more automated approach to reduce work and improve efficiency.
Innovation Solution
A transformer testing device with controllable switching means that automatically short-circuits and opens the winding connections as needed during testing, allowing for automated measurement without rewiring, using a control device to manage the switching based on a selected test procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual rewiring is used to short-circuit windings during transformer testing, then the transformer can be tested with short-circuited windings, but the testing process becomes time-consuming and complex
Solution Approach 1:
The patent replaces manual mechanical rewiring operations with an automated switching system controlled by a controller. The switching means automatically connect or disconnect the short-circuit connection between windings based on controller signals, eliminating the need for manual intervention and significantly reducing testing time while maintaining test accuracy.
Solution Approach 2:
The testing system performs self-service by automatically managing its own configuration through the controller and switching means. The system autonomously establishes or removes short-circuit connections without requiring external manual rewiring, making the testing process more efficient and repeatable.
2Reliability
If manual rewiring is used to short-circuit windings during transformer testing, then the transformer can be tested with short-circuited windings, but the complexity of the testing process increases
Solution Approach 1:
The patent replaces complex manual rewiring procedures with an automated switching system. The controller manages the switching means to automatically establish or remove short-circuit connections, transforming a manually complex process into an automated sequence that reduces operational complexity while maintaining testing reliability.
Solution Approach 2:
The switching means acts as an intermediary between the controller and the transformer windings. It automatically manages the connection state between windings based on controller instructions, simplifying the overall testing process by eliminating the need for manual intervention in establishing short-circuit conditions.
3Productivity
If automated switching means are used to short-circuit windings during transformer testing, then the testing process becomes automated and more efficient, but additional equipment is required
Solution Approach 1:
The switching means serves multiple functions: it establishes short-circuit connections between windings, disconnects them when needed, and can be controlled through various interfaces (manual or automated). This multi-functionality justifies the added equipment by providing versatile capabilities that enhance testing efficiency and flexibility.
Solution Approach 2:
The switching means acts as a controllable intermediary that enables automated testing sequences. By positioning the switching means between the controller and transformer windings, the system achieves automated control over short-circuit conditions, improving productivity while keeping the added complexity manageable through standardized control interfaces.
Data Source
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AI summary
The invention relates to a transformer test device (10) for testing a transformer (40), comprising connections (12) for the releasable connection of the transformer test device (10) to the transformer (40). The transformer test device (10) has a source (13) for generating a test signal for the testing of the transformer (40). The transformer test device (10) comprises a controllable switching means (15) which is connected to the terminals (12) during a transformer test for short-circuiting at least one winding (42) of the transformer (40).