Variable capacitors can be divided into air dielectric variable capacitor and solid dielectric variable capacitor according to their dielectric materials. 1. Air dielectric variable capacitor The electrode of the air dielectric variable capacitor is composed of two sets of metal sheets. Among the two sets of electrodes, the fixed set is the stator, and the rotatable [...]
Recently, at the 2020 New Urbanization Industry (Economy) Forum, Li Meng, a researcher at the Chinese Academy of Social Sciences and the Shanghai Research Institute of the Shanghai Municipal People's Government, expressed his views on the development trend of China's cultural tourism industry and the role of digital transformation in it. Li Meng said that due [...]
In electronic equipment, the alternating current output from a device often has high-frequency components and low-frequency components. At this time, the high frequency bypass capacitor can filter high frequency (let the high frequency pass through the branch where the high frequency bypass capacitor is located) and retain the low frequency (low frequency output). The capacitor that [...]
New Foreign Trade Regulations in September, See which changes are closely linked to us. ♦ The EU extends the policy of “suspending the collection of import duties and value-added tax on medical supplies” On July 27, the EU revised its decision to suspend the collection of tariffs and value-added taxes on imported medical supplies, extending the [...]
The biggest feature of the self-healing shunt capacitor is its self-healing performance. When the dielectric breaks down, the short-circuit current will melt and evaporate the metal film around the breakdown site, thereby restoring the insulation, so it has a higher operational reliability. The self-healing time after dielectric breakdown is only a few microseconds. When the weak [...]