CH85 微波炉电容器
微波炉电容
该产品适用于工业及家用微波炉等高压交流电路中,产品为油浸复合介质结构。
特点为:散热性能好,耐压值高,体积小,介质损耗小,容量精度高,在较高工作电压下能够长时间稳定运行,具有安全可靠等优点。
产品符合IEC61270——1,EN61270(VDE0560-22)标准。
主要指标如下:
额定容量:0.5UF~1.23UF
额定电压:家用微波炉2100VAC/50-60HZ、
工业微波设备2500VAV/50-60HZ
容量偏差:±1%、±3%、±4%(可按客户要求生产)
实验耐压(Un):T-T(极间) DC:4.3 Un、10S
T-C(极壳间)AC:6000V、60S
使用温度:-10℃~85℃放电电阻:10MΩ±10%
规格尺寸:以用户订货要求为准。
结构与原理:
高压电容器的额定工作电压为2100V/AC~2500V/AC,电容量0.5UF~1.23UF,并且电容器内部都并接一个10MΩ高压放电电阻,其作用是微波设备关机后自动泄放电容器上电荷。
高压电容的主要作用是与高压二极管组成半波倍压整流电路,为磁控管提供直流阳极高压。高压变压器的次级高压绕组输出2100V左右的交流电压,经高压电容和高压二极管倍压整流后,获得4500V左右的直流高压供给磁控管的阳(阴)极使用。高压电容还有提高微波设备电路效率的作用。因为漏磁变压器工作是存在滞后的漏感电流,效率较低,有了高压电容后,其超前的电容电流会对滞后的漏感电流起到补偿作用,因而能使电路的功率因素得以提高、效率上升。
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