The main structure of the power system includes power sources, power networks, and load centers. Power refers to various types of power plants and stations that convert primary energy into electrical energy; The power network consists of step-up substations, transmission lines, load center substations, distribution lines, etc. Its function is to boost the electrical energy emitted by the power supply to a certain level and then transmit it to the load center substation. After reducing the voltage to a certain level, it is connected to the user through the distribution line.

Power transformers are important equipment in the power system, mainly used to regulate voltage through winding coils. In the current situation where the power system is becoming increasingly complex and the construction of corresponding high-voltage power systems is becoming increasingly complex, the reliability of high-voltage transformer operation must be given sufficient attention. The main way to ensure the reliability of the operation of high-voltage power transformers is to ensure that their corresponding parameters and loss values can meet basic needs, and the corresponding standards can also have ideal normative effects. Based on these requirements, corresponding testing work is extremely necessary. High voltage transformer testing is directly related to the operational effectiveness of the entire system, and the content and testing methods involved are also complex. It can be seen that it is extremely necessary to do a good job in the testing of high-voltage transformers, and relevant professionals and researchers need to strictly control and control the testing process and specific operations.

Analysis of Factors Influencing High Voltage Transformer Testing

(1) Temperature influence.

Power transformers have a certain sensitivity to temperature, and the test results inevitably vary due to different external environmental temperatures, especially the specific materials that make up the power transformer. The impact of temperature is more prominent. During the test, as the temperature increases, the insulation resistance of the high-voltage transformer will decrease, which will have a significant impact and threat on the test results.

(2) Humidity impact.

For power transformer testing, the influence of humidity is also a relatively important aspect. The impact of humidity mainly refers to the increase in air moisture content caused by humidity, which affects the detection accuracy of power transformers. That is, it is difficult to obtain accurate data information during the test process, which will inevitably lead to the loss of control of the test results.

(3) The impact of boosting speed.

The reasons for problems in the operation of high-voltage transformers are multifaceted. They are not only affected and interfered with by the temperature and humidity in the external environment, but also to a large extent by the operating conditions of high-voltage transformers. For example, the boosting speed will have a certain impact on the leakage current, leading to a significant deviation from the theoretical value. This problem and impact mechanism are most obvious in large capacity transformers, It needs to be given sufficient attention.