電容類型的不斷細化，薄膜電容已經(jīng)慢慢取代了鋁電解電容，不同型號的電容在使用的時候有不同的注意事項。接下來就跟隨紅寶小編一起來看看使用薄膜電容時有哪些關(guān)鍵點需要注意的吧！

　　With the continuous refinement of capacitor types, thin film capacitors have gradually replaced aluminum electrolytic capacitors. Different types of capacitors have different precautions when using. Next, let's follow Hongbao to see what key points need attention when using thin film capacitor!

　　1、注意運行環(huán)境溫度。由于過高的運行溫度會導(dǎo)致薄膜電容的電化學(xué)反應(yīng)加劇，影響自愈時的熱量消散，將導(dǎo)致自愈失敗或使用壽命短縮，因此，安裝薄膜電容器時應(yīng)避開熱源，改善散熱及通風(fēng)環(huán)境。

　　Pay attention to the operating ambient temperature. Due to the high operating temperature will lead to the intensification of electrochemical reaction of the film capacitor, affect the heat dissipation during self-healing, and lead to self-healing failure or short service life. Therefore, the installation of thin-film capacitor should avoid heat source, improve the cooling and ventilation environment.

　　2、薄膜電容的額定電壓必須與本地區(qū)電網(wǎng)電壓相符合，對于某些電壓過高或者有諧波存在的電網(wǎng)，由于高次諧波，尤其是三、五、七次諧波，能量大的，危害也屬于較強，在配置時，應(yīng)采取措施予以避免和隔離。

　　The rated voltage of the film capacitor must be in line with the local power grid voltage. For some power grids with high voltage or harmonics, due to the high-order harmonics, especially the third, fifth and seventh harmonics, the harm is also strong. In the configuration, measures should be taken to avoid and isolate them.

　　3、電容器柜應(yīng)設(shè)有合理的保護裝置：

　　The capacitor cabinet shall be equipped with reasonable protection device:

　　①調(diào)整合適的延時及放電時間，投入與切除電容器組要配有限流及放電裝置。因為薄膜電容內(nèi)阻小，浪涌電流可能高達上萬安倍，為了防止新投入的電容器受到旁側(cè)先投入的電容器對其放電，所以應(yīng)設(shè)置限流保護裝置；為了保證運行及維護薄膜電容的安全，必須設(shè)置放電裝置；

　　Adjust the appropriate time delay and discharge time. The capacitor bank should be equipped with limited current and discharge device. Because the internal resistance of the film capacitor is small, the surge current may be as high as tens of thousands of ampere times. In order to prevent the newly put in capacitor from being discharged by the capacitor first put in at the side, the current limiting protection device should be set; in order to ensure the safety of operation and maintenance of the film capacitor, the discharge device must be set up;

　　②投切程序應(yīng)遵守先投先切，后投后切的原則；

　　The switching procedure should follow the principle of first switching and then switching;

　　③為了防止頻繁投切，電容器組在切除時必須保留足夠容量，作為基數(shù)組。

　　In order to prevent frequent switching, the capacitor bank must reserve enough capacity as the base group.

　　以上就是在使用薄膜電容時需要注意的事項，希望對大家有所幫助。山東紅寶電子專業(yè)銷售電子電容元件多年，電容品類齊全，知名品牌，穩(wěn)定性能好，歡迎致電咨詢。

　　The above is the need to pay attention to the use of film capacitors, I hope to help you. Shandong Hongbao electronic professional sales of electronic capacitor components for many years, a complete range of capacitors, well-known brands, good stability, welcome to call for advice.