大家好:
请问电解的损耗角正切值代表什么性能.比如说正常的2.2μF400V 5000小时一般厂家定义的为0.10,有的定义为0.20.是随机定义的么?一般的测试不超过0.08,为什么标的如此高.
电解耐久实验的测试条件不一样,一种为105度,施加额定电压及额定纹波电流5000H .一种是105度,施加最大纹波电流及额定电压,然后回复常温条件测试.假设两种产品的容量变化,损耗角正切,漏电流一样.是不是试验过程中施加最大纹波电流的产品性能更可靠.
另:漏电流代表什么参数性能.
一般的电解电容都是采用100HZ或者120HZ测试的容量和损耗.为什么大多数公司的样本上都是120HZ,不同频率会有什么影响.
请帮忙回复相关问题
全部回复(10)
正序查看
倒序查看
现在还没有回复呢，说说你的想法
Tangent of loss angle or dissipation factor :
1)The tan is the ratio of the resistive component(ESR)to the capacitive reactance(1/wc)in the equivalent series circuit,
and its measuring conditions are the same as the capacitance.
2)The tan show higher values as a measuring frequency increases and a measuring temperature decreases.
3)Leakage current:The dielectric of a capacitor has a very high resistance which prevents the flow of DC current.however,due to the characteristics of the aluminum oxide layer that functions as a dielectric in contact with electrolyte,a small amount of current,called leakage current,will flow to reform and repair the oxide layer while a volgage is being applied.
Thank for you question.
1)The tan is the ratio of the resistive component(ESR)to the capacitive reactance(1/wc)in the equivalent series circuit,
and its measuring conditions are the same as the capacitance.
2)The tan show higher values as a measuring frequency increases and a measuring temperature decreases.
3)Leakage current:The dielectric of a capacitor has a very high resistance which prevents the flow of DC current.however,due to the characteristics of the aluminum oxide layer that functions as a dielectric in contact with electrolyte,a small amount of current,called leakage current,will flow to reform and repair the oxide layer while a volgage is being applied.
Thank for you question.
0
回复
提示
@青春之歌
Tangentoflossangleordissipationfactor:1)Thetanistheratiooftheresistivecomponent(ESR)tothecapacitivereactance(1/wc)intheequivalentseriescircuit,anditsmeasuringconditionsarethesameasthecapacitance.2)Thetanshowhighervaluesasameasuringfrequencyincreasesandameasuringtemperaturedecreases.3)Leakagecurrent:ThedielectricofacapacitorhasaveryhighresistancewhichpreventstheflowofDCcurrent.however,duetothecharacteristicsofthealuminumoxidelayerthatfunctionsasadielectricincontactwithelectrolyte,asmallamountofcurrent,calledleakagecurrent,willflowtoreformandrepairtheoxidelayerwhileavolgageisbeingapplied. Thankforyouquestion.
第三条.我是这么翻译的,感觉不顺畅,请指点什么意思!
漏电流:非导电性的一个电容器有防止DC current.however的流动的一种高的抵抗,由于特性铝氧化物层起的作用一非导电性与少量电流,电解液接触,当volgage被使用时,叫漏电流,将流改革并且修理氧化物层
漏电流:非导电性的一个电容器有防止DC current.however的流动的一种高的抵抗,由于特性铝氧化物层起的作用一非导电性与少量电流,电解液接触,当volgage被使用时,叫漏电流,将流改革并且修理氧化物层
0
回复
提示
