Insulating Material Defect Detection via X-Ray Ionization
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Solution Overview
Problem
Existing devices for detecting defects in insulating materials in gas-insulated switchgear require long measurement times, high voltage, and consume significant power, leading to potential material deterioration and unreliable results due to environmental noise and tester experience.
Innovation Solution
A device with a test chamber, X-ray modules, a withstand voltage tester, and a partial discharge sensor that irradiates X-rays to induce gas ionization and measure partial discharges, allowing for controlled voltage and current adjustments based on material thickness and cross-sectional area, and accommodating multiple insulating materials simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a relatively high voltage is applied to ionize gas in voids, then partial discharge can be generated for measurement, but measurement time increases and power consumption increases
Solution Approach 1:
The patent applies a relatively high voltage in advance before the actual measurement to ionize the gas existing in the voids of the insulating material. This preliminary ionization action eliminates the need for time-consuming gas ionization during the measurement process itself, thereby reducing measurement time while maintaining measurement reliability through subsequent low-voltage detection
2Reliability
If a very high voltage is applied to ionize gas, then partial discharge can be generated, but power consumption increases significantly
Solution Approach 1:
The patent separates the gas ionization process from the measurement process by applying high voltage in advance to ionize the gas, then using a relatively low voltage during actual measurement. This approach eliminates the need for continuous high voltage application, significantly reducing power consumption while maintaining measurement reliability through the pre-ionized gas environment
3Reliability
If a relatively high voltage is applied to ionize gas, then partial discharge measurement can be performed, but stress on insulating material increases reducing lifespan
Solution Approach 1:
The patent applies a relatively high voltage in advance to ionize the gas, then uses a relatively low voltage during the actual measurement process. This separation minimizes the duration and intensity of high voltage stress on the insulating material, thereby preserving material lifespan while still enabling reliable partial discharge measurement through the pre-ionized gas environment
Solution Approach 2:
The patent applies high voltage only partially (in advance) rather than continuously during measurement. By limiting high voltage application to the preliminary ionization stage and using low voltage for measurement, the patent reduces overall stress on the insulating material while achieving the necessary measurement conditions
4Reliability
If high voltage is applied for measurement, then partial discharge can be detected, but measurement results depend on environmental noise and tester experience
Solution Approach 1:
The patent pre-ionizes the gas in voids before measurement, creating a stable ionized environment that reduces sensitivity to environmental noise. This preliminary action establishes consistent measurement conditions that minimize the influence of external factors and tester experience, thereby improving measurement precision while maintaining reliability
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
This solution reduces measurement time, power consumption, and material stress, improving reliability and lifespan while enhancing production efficiency and product quality.
Implementation Method 1
a cross-sectional area and thickness measuring operation of measuring a cross-sectional area and a thickness of the insulating material, based on a direction in which the X-ray is irradiated to the insulating material
Implementation Method 2
to induce a gas ionization of voids existing in the insulating material
Implementation Method 3
measuring a partial discharge generated in the insulating material by irradiating an X-ray to the insulating material
Data Source
AI summary
A device for detecting a defect in an insulating material to be measured, may include a case having a test chamber in which the insulating material is accommodated; a withstand voltage tester applying a voltage to the insulating material accommodated in the test chamber; a plurality of X-ray modules disposed in the test chamber and irradiating X-rays toward different regions or in different directions; and a partial discharge sensor measuring a partial discharge generated from the insulating material accommodated in the test chamber.