How to analyze the results of insulation oil dielectric strength tester testing?

Electric friends should know that insulating oil is a widely used insulation material in power equipment. In order to ensure the insulation characteristics of insulating oil, we need to conduct testing work on it. Nowadays, we usually use a testing device called an insulating oil dielectric strength tester to test its insulation characteristics. So, how do we analyze the test results in the actual testing process? Below is an overview for everyone.

The test results of the insulation oil dielectric strength tester can be analyzed from the following aspects:

1. First spark discharge voltage:

This is an important reference point, which can be used to determine whether the oil sample is qualified based on its voltage value. If the voltage of the first spark discharge is particularly low, it is necessary to take a new oil sample for testing or contact the manufacturer for analysis.

2. Changes in spark discharge voltage value:

Generally speaking, the spark discharge voltage value should gradually increase, that is, the insulation performance should gradually become stronger. But if the spark discharge voltage gradually decreases, or if the two ends are low and the middle is high, it means there may be impurities or moisture, and it is necessary to take a new oil sample for testing or contact the manufacturer.

3. Numerical variation of six spark discharge voltages:

If there is a gradual increase in the voltage value of the six spark discharges, it indicates that the insulation performance of the oil sample has gradually improved and is qualified. However, if the voltage value of the six spark discharges gradually decreases, it may be necessary to replace the insulation oil.

4. Discrepancy of withstand voltage value:

If the variability of the withstand voltage value is significant, for example, if there are multiple samples with significantly different withstand voltage values, it is necessary to take a new oil sample for testing to ensure the accuracy of the test results.

Overall, based on the results of the insulation oil tester test, we can determine the voltage resistance level of the insulation oil, thereby helping to determine whether it is qualified. Meanwhile, based on the test results, targeted measures can also be taken, such as replacing insulation oil, to ensure the safe use of power equipment.

The ZC-210B fully automatic insulation oil dielectric strength tester is a highly accurate and fully digital industrial instrument developed by all scientific research and technical personnel of our company, in accordance with the relevant provisions of the national standard GB/T 507-1986 and the industry standards DL/T 474.4-2006 and DL/T 596-1996, leveraging our own advantages, through multiple on-site tests and long-term unremitting efforts. The instrument is easy to operate and has a beautiful and elegant appearance. Due to the use of fully automatic digital microcomputer control, the measurement accuracy is high, the anti-interference ability is strong, and it is safe and reliable.

Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com