Views:0 Author:Site Editor Publish Time: 2019-06-17 Origin:Site
High-voltage ceramic capacitors generally refer to ceramic capacitors above 1kv. They are mainly extruded from a high dielectric constant capacitor ceramic barium titanate titanate into a circular tube, a disk or a disk as a medium, and silver is plated by inactivation. Made of ceramic as an electrode, it has the advantages of small size, high pressure resistance, stable performance, no oil, no gas, no pollution.
Some customers asked us that their ceramic capacitors on the high-voltage board were burned out. Now that there is no suitable capacitor on hand, can we remove the ceramic capacitor on the high-voltage board? For this problem, we have given the customer an answer, and now share it. Give it to everyone.
There are usually 1-4 high-voltage ceramic capacitors on the high-voltage board. We often see that ceramic capacitors should be connected in parallel at the output of the high-voltage transformer. Some people think that the ceramic capacitors have the function of direct-crossing and coupling, so that they will not be short-circuited. ? In fact, it will not be short-circuited. Capacitance is isolated and passed through. A small capacitor passes through a high frequency current. A ceramic capacitor connected in parallel with the output of the transformer can be regarded as short-circuiting the current of the high-frequency component. The function is to filter out high-frequency signals and reduce high-frequency to other circuits or Interference from electrical equipment.
A typical example is that a small capacitor is generally connected in parallel with the starter of the fluorescent lamp. If this capacitor is not connected, the wireless device such as the radio will have a strong interference sound not far from the fluorescent lamp. In addition, the replacement of the ceramic capacitor on the high-voltage board should also choose the capacity, the withstand voltage or the replacement, so as to ensure that there is no problem.
If you have technical questions, please contact us and we will try our best to solve it for you.