四虎影成人精品a片-香蕉视频免费看-青青草青娱乐-国产喷水视频-中文字幕av网-一亲二脱三插-日韩中文字幕精品-超碰操-国产三级一区二区-亚洲天堂手机在线-亚洲国产成人综合-一区二区播放-国产精品最新-成人一卡二卡-国产淫视-都市激情一区-黄色一级图片-麻豆一级视频-国产成人免费看一级大黄-黄色a在线-男女日日-亚洲av综合色区无码一区-爱色av网站-亚洲网站在线看-国产一区资源

Safety capacitors include two types: X capacitors and Y capacitors. X capacitors are capacitors that are connected across two power lines (L-N) and generally use metal film capacitors; Y-capacitors are capacitors that are respectively connected between two power lines and ground (L-E, N-E), usually appearing in pairs

 Firstly, we know that an electric capacity is composed of two metal electrodes sandwiched between insulating materials (dielectric). Due to differences in insulation materials, the types of capacitors formed also vary:
According to structure, it can be divided into fixed capacitors, variable capacitors, and fine tuned capacitors. According to the dielectric material, it can be divided into: gas dielectric capacitor, liquid dielectric capacitor, inorganic solid dielectric capacitor, organic solid dielectric capacitor, organic solid dielectric Electrolytic capacitor. According to polarity, it can be divided into polar capacitors and non-polar capacitors.
Capacitors have the function of isolating direct current through alternating current in circuits, and are therefore commonly used for inter stage coupling, filtering, decoupling, bypass, and signal tuning.
Precautions: Capacitors for suppressing electromagnetic interference from power sources
When using capacitors to eliminate noise in cross line power circuits, not only normal voltage but also abnormal pulse voltage (such as lightning) should be considered, which may cause the capacitor to smoke or catch fire. Therefore, the safety standards for cross line capacitors have strict regulations in different countries, so it is necessary to use certified capacitors.