Rotating Oil Pool Transformer Fault Detection
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Solution Overview
Problem
Existing methods for inspecting transformer oil in large transformers are cumbersome and labor-intensive, requiring multiple oil outlets and manual oil discharge, which delays timely detection of faults and increases the labor burden on staff.
Innovation Solution
A power transformer fault detection device featuring a rotating member with multiple oil pools connected to oil outlet nozzles at different heights, equipped with a detection component that can monitor transformer oil composition in real time through light-transmitting windows, reducing the need for manual oil discharge and improving detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple oil outlets are equipped at different heights for large transformers, then the detection coverage of transformer oil is improved, but the device complexity and labor burden increase
Solution Approach 1:
The detection system is segmented into multiple detection components that can independently detect oil samples from different heights. Each detection component is equipped with an infrared detector and associated optical components, allowing the system to cover multiple oil outlet positions without requiring all outlets to be simultaneously active, thus reducing operational complexity while maintaining comprehensive detection coverage
Solution Approach 2:
The detection component is designed with universal functionality to handle multiple detection tasks. The rotating member can position any detection component at any oil outlet, and the reflector system can guide light paths to any detector, allowing a single detection component design to serve multiple oil outlet positions throughout the transformer tank
2Reliability
If manual oil discharge inspection is performed from multiple oil outlets, then the transformer oil can be tested, but the labor burden and inspection time increase significantly
Solution Approach 1:
The system enables continuous monitoring of transformer oil by maintaining oil samples in the detection component at all times. The circulation pump continuously circulates oil through the detection system, and the rotating member can quickly reposition between oil outlets, eliminating the need for periodic manual sampling and enabling uninterrupted fault detection
Solution Approach 2:
The detection system performs self-service by automatically circulating oil samples, positioning detection components, and conducting measurements without human intervention. The circulation pump automatically maintains oil flow, the rotating member autonomously positions detectors, and the infrared detectors continuously analyze oil composition, freeing staff from manual inspection tasks
3Measurement precision
If staff manually discharge and transport oil to laboratory for testing, then the transformer oil can be analyzed, but the timeliness of fault detection is reduced
Solution Approach 1:
The mechanical process of manual oil discharge and physical transport to the laboratory is replaced by an optical detection system. Infrared detectors directly analyze oil samples in-situ within the transformer tank, substituting the mechanical transport process with electromagnetic radiation-based measurement, thereby achieving immediate analysis without physical movement of oil samples
Solution Approach 2:
The infrared detector acts as an intermediary between the transformer oil and the analysis system. Instead of directly transporting oil to the laboratory, the infrared detector mediates the analysis process by measuring the infrared absorption characteristics of the oil sample in place, providing rapid compositional information without requiring physical sample transfer
4Measurement precision
If multiple oil outlets are equipped for comprehensive detection, then the detection accuracy is improved, but the ease of operation deteriorates
Solution Approach 1:
The detection system incorporates dynamic positioning capabilities where the rotating member can automatically reposition detection components between different oil outlet heights. This dynamic adjustment is controlled by a drive mechanism that responds to control signals, allowing the system to adaptively select which oil outlet to monitor based on operational requirements without manual intervention
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 device enables real-time monitoring of transformer oil, facilitating timely fault detection and reducing the labor burden on staff, while improving the accuracy of transformer oil detection across multiple oil pools.
Implementation Method 1
The transformer oil is usually tested using an infrared detector, also known as Raman spectroscopy
Implementation Method 2
a light-transmitting window is provided on the oil pool. The detection component is installed on the rotating member and can detect the composition of the liquid in the oil pool through the light-transmitting window
Implementation Method 3
the reflector is provided with a reflective surface capable of reflecting light, and the reflective surface can guide the light to extend toward the detector
Data Source
AI summary
The present application relates to the field of power equipment detection devices, and in particular to a power transformer fault detection device, which includes a detection component for detecting the oil composition of the transformer, and also includes a rotating part comprising multiple groups of oil pools that are evenly spaced around the rotating axis of the rotating part. The multiple groups of oil pools are connected to oil outlets at different heights on the transformer, and a light-transmitting window is provided on the oil pool. A detection component is installed on the rotating part, and can detect the composition of the liquid in the oil pool through the light-transmitting window. The present application has the effect of allowing staff to monitor the working status of the transformer in a timely manner and reducing the labor burden of the staff.