0-80kv Transformer Oil Bdv Insulation Dielectric Strength Tester
Why We Need Transformer Oil Insulation Strength Testing Device
Here are some reasons why we need a Transformer Oil Insulation Strength Testing Device:
1. To ensure the oil has sufficient breakdown voltage and insulating properties. This is crucial for the proper functioning of transformers that use the oil as insulation.
2. To detect deterioration of the oil over time due to factors like moisture absorption and contamination. This allows maintenance and replacement of the oil before failures occur.
3. To test oil quality after processing like filtration, degassing or drying. This verifies if the processing was effective in improving the oil properties.
4. To comply with standards and specifications that require testing of transformer oil characteristics. Many utilities and industries have requirements for regular oil testing.
5. To monitor the health of transformers so that issues can be identified early. A drop in oil breakdown voltage can indicate developing faults within the transformer.
6. To provide a basis for optimization. By establishing a baseline oil quality, any improvement measures like improved oil processing can be evaluated.
What Do We Need To Be Aware of When Using The Instrument
• Ensure no air bubbles are trapped in the oil sample as these can affect the results. The oil should be degassed before testing.
• Thoroughly clean the test cell and electrodes before each test to remove any contaminants that may cause premature breakdown.
• Allow the oil sample to settle for a few minutes before testing to release any residual dissolved gases. Agitation should be avoided.
• Use a consistent test procedure and set of parameters for comparative measurements. The test conditions must be kept uniform.
• Calibrate the test instrument periodically as required to ensure accuracy and repeatability of the measurements.
• Where possible, record test conditions like temperature and humidity as these can influence the results.
• Use oil samples from the same source wherever feasible to detect changes in oil quality more reliably over time.
• Retain and archive all test results for future reference which is important for analyzing trends and troubleshooting issues.
• Follow the manufacturer's operating and maintenance guidelines to ensure optimum performance and reliability of the test equipment.
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