We will continue to talk about the precautions of using metal film capacitor
s and the noise of metal film capacitors. In some specific working occasions, such as cross-line, step-down and other AC occasions, metal film capacitors may have noise. This is caused by the existence of gaps between the films and vibration under the action of the alternating electric field. Judging from the current technology and statistics, the noise of metal film capacitors has no obvious effect on the performance of the capacitor. It is generally caused by the manufacturing process, and the progress of the process will significantly improve or solve this problem. Self-healing of metal film capacitors. The self-healing property of the metal film capacitor means that when the plastic film of the capacitor has electrical breakdown or its own defects, the metal coating at the breakdown point or defect location will instantly vaporize under the action of the arc, forming a metal-free area, so that The capacitor resumes normal operation. When there is a short circuit between the plates, the heat generated by the large current will instantly evaporate the metal coating around the short-circuit point within 5US, and the short-circuit point will immediately restore the insulation. This greatly optimizes the service life and working conditions of the capacitor. For more details, please call the noodle hotline: 4006299138.
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