日韩毛片毛片久久精品 I 九九热精品国产 I 日本中文字幕在线视频 I 欧美一区精品 I 干片网在线观看 I 欧美巨大xxxx做受中文字幕 I 51国产偷自视频区视频小蝌蚪 I 1024手机在线观看 I 高清乱码一区二区三区 I 亚洲精品无码成人片 I 日日天天 I 天堂在线中文视频 I 97超碰人人看 I bt天堂新版中文在线地址 I 久久激情欧美 I 国内精品久久久久影视老司机 I 久久久久久久极品内射 I av私库在线 I 国产精品对白久久久久粗 I 亚洲精品无码专区在线在线播放 I 国产成人一区二区精品视频 I 亚洲精品www久久久久久软件 I 高中国产开嫩苞实拍视频在线观看 I 97视频黄 I 精品人妻潮喷久久久又裸又黄 I 欧美 日韩版国产在线播放 I 亚洲中文字幕日本无线码 I 亚洲a∨日韩av高清在线观看 I 无套内射在线无码播放 I 色放在线免费播放

     Long life Electrolytic capacitorIt has a wide range of uses and can generally be used for motor starting, ballasts, frequency converters, etc. Common faults of Electrolytic capacitor include capacity reduction, capacity disappearance, breakdown short circuit and electric leakage. The capacity change is caused by the gradual drying of the electrolyte inside the Electrolytic capacitor during its use or placement, while breakdown and electric leakage are generally caused by the applied voltage being too high or its own quality being poor.

Generally, the resistance range of the multimeter is used to measure the long life Electrolytic capacitor of the power supply. The specific method is: short circuit the two pins of the capacitor to discharge, and connect the black probe of the multimeter to the positive pole of the Electrolytic capacitor. The red probe is connected to the negative electrode (for a pointer type multimeter, when measuring with a digital multimeter, the probes are mutually adjustable). Normally, the probe should first swing in the direction of low resistance, and then gradually return to infinity.

The larger the swing amplitude or slower the return speed of the watch needle, the greater the capacity of the capacitor, and vice versa, the smaller the capacity of the capacitor. If the pointer of the watch does not change at a certain point in the middle, it indicates that the capacitor is leaking electricity. If the resistance indicator value is very small or zero, it indicates that the capacitor has broken through and short circuited.

Due to the fact that the battery voltage used in a multimeter is generally very low, it is more accurate to measure capacitors with low voltage resistance. However, when the voltage resistance of the capacitor is high, although the measurement is normal during operation, there is a possibility of leakage or breakdown when high voltage is added.