How to choose a good quality capacitor
? All metal film capacitors that pass the customs should meet the national GB12747-91 standard, and the capacitor components must be inspected and screened before leaving the factory, and then only qualified components are allowed to be assembled. The main indicators of the entire capacitor, such as capacity, loss, withstand voltage and insulation, have been tested, and only allowed to leave the factory after the appearance has passed the inspection. The capacitors shipped out of the factory should also have supporting instructions and technical indicators. If metal film capacitors experience breakdown, overheating, obvious bulging, failure, etc. during the warranty period, the manufacturer shall replace them. What I said before is basically satisfied. After the customer chooses the capacitor, he still wants to use it. Then, how to use it is correct? General users often ignore the instruction manual, and the precautions for use should be carefully understood and understood during installation. As we all know, the impedance of a metal film capacitor is inversely proportional to frequency. As the frequency increases, the loss also increases. Measures must be taken to limit the harmonics and inrush current in the circuit. Metal film capacitors always generate heat, so special attention should be paid to ventilation and cooling. After the reactive power compensation device is installed, during the trial operation, the system should be tested, and measures should be taken in time if overvoltage, overcurrent, oscillation, harmonics, etc. are found, which is very necessary for the normal operation of the capacitor. It is good for everyone to choose a good metal film capacitor in this way and note down the points that should be paid attention to when using the capacitor. Of course, this is just a brief introduction. If you want to know more, please call the toll-free hotline 4006299138.
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