av免费亚洲丨国产视频xxxx丨国产精品美女久久久久久久网站丨亚洲乱码精品丨日本xxxwww丨亚洲麻豆av成本人无码网站丨亚洲va欧美va国产综合剧情丨欧美久久伊人丨性生交大片免费看狂欲丨www日韩avcom丨国产精品男人天堂丨国产黄色一级片视频丨欧美日韩免费做爰大片人丨成人影视在线播放丨96国产精品久久久久aⅴ四区丨kkkk444成人免费观看丨日韩一级淫片丨亚洲三级图片丨国产一极毛片丨一卡二卡国产丨人妻丰满熟妇无码区免费丨国产精品3区丨军人全身脱精光自慰丨青青草毛片丨狂野欧美性猛交xxⅹ李丽珍

       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.