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Safety measures before high voltage test

time:2020/11/21   source:华天电力  reading:672 time

Insulation defects of high-voltage test transformers are an important factor that causes failures between enterprise equipment. A large part of the accidents that can occur in my country's power management system are caused by insulation defects. Therefore, in order to effectively reduce the probability of accidents, electric power professionals can use various high-voltage test methods to effectively test the data and information of equipment operation. To judge the feasibility of equipment operation. With the continuous improvement of the economic development of my country’s power market, the management of power companies is in fierce market competition. In order to effectively occupy the market, gain an advantage in the competition, ensure the quality of power system equipment, and ensure that the Safety is an important means by which power companies can improve students’ own market competitiveness.

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There are many types of high-voltage test transformers. High voltage tests of power transformers can usually be divided into two categories: characteristic tests and insulation tests. Among them, the characteristic research test is mainly the test that the main circuit of the circuit breaker of the electrical technical equipment such as the power system transformer can contact a resistance, ampere-volt curve analysis, GIS, polarity, etc. Insulation test includes destructive test and non-destructive test. The former involves DC and AC withstand voltage test. Due to the high voltage, it is easy to find equipment defects during the test, but due to its destructive nature, it is easy to damage the insulation of the equipment during the test. , Thereby greatly shortening the life span. The latter generally uses non-destructive methods to analyze and test it, and can find the overall defects of my country's electrical engineering equipment management in time, but at the same time, due to the relatively low voltage of development, the sensitivity is relatively low. The effects produced by different experimental developments are also different, but in the actual experiments in China, non-destructive testing is still a more commonly adopted experimental analysis method.

High-voltage test transformers are susceptible to moisture, which is generally caused by their outer skin. Normally in this case, the electrical properties of water molecules in the electric field are positive, but if we apply a voltage that affects a positive polarity in the windings of the transformer, it will cause the water molecules to change, and the amount of water needs to grow and decrease, thus generating current. The amount of transformers that can be analyzed will also decrease. When the applied voltage is of negative polarity, the amount of current in the transformer will increase through analysis, but in fact, the transformer will not all itself be affected by the voltage polarity.

In order to ensure accurate work of information security, power transformers are an important social guarantee for power high-voltage test transformers to ensure their safe management and operation. In high-voltage tests, professional requirements are high, so you should choose a major with strong professional theoretical knowledge. Information technology managers come to conduct analysis tests. At the same time, various data security protection measures should be taken before the test, and the test skills should be flexibly mastered during the test, so as to avoid the occurrence of various social factors that affect the test results, so as to ensure the accuracy of the test results.

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