Applying series resonant devices in various stages of high-voltage power testing can ensure the quality of power operation in each link. For example, when applying a series resonant device in cable testing, it can be found that temperature has a significant impact on resistivity. In practical applications, it is necessary to pay more attention to temperature control. The DC voltage inside the cable is also significantly affected by various factors, which makes it easier to accumulate space charges and cause insulation problems in the cable, resulting in local voltage enhancement. The insulation is more prone to breakdown during testing. During the DC withstand voltage test, sufficient preparation should be made for the issue of breakdown. By applying a series resonant device, this problem can be effectively avoided. Due to the relatively small size of the device and its high flexibility, its application in cable testing is particularly prominent.
In the application of series resonance device in the AC high-voltage withstand test of generators, when the stator winding of the generator reaches a certain level of ground capacity, the capacity of the test equipment will also increase accordingly. Conventional testing equipment can be cumbersome and cause inconvenience when used. For the application of conventional high-capacity testing equipment, when the insulation breakdown of the generator stator winding occurs, a short circuit will occur at the fault point, and the current will further increase, making it easy to burn out the iron core, which will inevitably cause significant economic losses. Under the application of series resonance devices, the experimental process can be effectively optimized. By adjusting the air gap of the iron core, the inductance can be changed to achieve the purpose of power frequency resonance, and the safety of the test can also be effectively guaranteed.
It is also important to apply series resonant devices in GIS equipment. After the factory is assembled as a whole and adjusted in units for testing, the units are transported to the site for installation after meeting the test standards. It is relatively easy to cause damage to GIS equipment components during transportation, and quality problems are also prone to occur during actual installation. It is important to conduct on-site voltage withstand tests on GIS equipment, mainly including methods such as AC voltage and oscillation operation. After conducting the withstand voltage test, safety accidents can be effectively avoided. There are many applications of frequency modulation series resonance withstand voltage test devices in China, and the test results can also be well presented.
Wuhan UHV specializes in the production of series resonance (also known as variable frequency resonance test device), engaged in the electrical measurement industry for many years. Its products have first-class quality and welcome customers to come and purchase.