In recent years, with the development of China's power system, the requirements for testing various components in the power system have become increasingly high. The test transformer is required to have strong insulation performance, low leakage flux, good heat dissipation performance, and high voltage resistance. Dry type test transformers have the characteristics of small size, light weight, high efficiency, and low noise, Therefore, it is widely used in insulation testing and electrical performance testing in power systems.
The structural composition of the dry test transformer:
The dry test transformer mainly consists of an iron core, winding, oil tank, iron yoke, oil conservator, sleeve, and shell. The iron core is mainly composed of silicon steel sheets, and the winding is generally composed of multi turn coils. The oil tank can be divided into two forms: vacuum oil tank and oil immersed oil tank. The function of the winding is to convert the voltage on the power line into current.
Comparative analysis of dry test transformers and traditional winding test transformers:
The winding type test transformer generally uses a power frequency test power supply, which needs to be boosted by a high-voltage DC power supply, and the voltage of the test transformer can be adjusted by adjusting the size of the high-voltage DC voltage. Although this can improve the output power of the test transformer, it can generate significant noise when the output power is high. During the testing process, dry test transformers have low noise, no oil gap, smaller volume, lighter weight, good insulation performance, good heat dissipation effect, and can be directly connected to the tested circuit, achieving remote control and monitoring of the tested circuit. Therefore, they have been widely used in power systems.
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.
