激情内射,国产日韩欧美亚洲every,婷婷热热久久,鲁鲁狠狠插

       Baoyusi Power Technology Co., Ltd. is a related company of POWEREX, a famous brand in the power supply industry, and a strategic production base established in East China. The company's main products are special transformers, reactors, smart regulators, and DC power supplies. And the development of laboratory non-standard test power supply. There are more than 50 sets of various advanced production and testing equipment, and more than 20,000 sets of various power supplies are produced annually.
        POWEREX has a history of nearly half a century, with branches and agencies all over the world. It is a pioneer in the field of power supply in the world,
1、選用更低的電流密度;2、減少匝數(shù),但會(huì)增加磁心的磁通密度而增加鐵損,當(dāng)銅損明顯高于鐵損時(shí)使用,慎用;3、改變變壓器工藝以減少繞組交流電阻.方法有主要有減小銅...
1. △B選取過(guò)高,磁心熱(空載檢查是否磁心就是熱);2. △B選取不高,,磁心本身高頻損耗大,磁心熱(空載檢查是否磁心就是 熱);3 .線(xiàn)電流密度過(guò)大,繞組熱...
電感器與電感型濾波器線(xiàn)圈與其回流部分就可構(gòu)成一個(gè)傳統(tǒng)的電感器,通常有單線(xiàn)圈或多線(xiàn)圈式的。電感器可按其環(huán)繞的磁芯來(lái)分類(lèi),最常見(jiàn)的兩種類(lèi)型是空氣磁芯和磁性磁芯。磁性...
很多用戶(hù)面對(duì)那么多的負(fù)載不知道如何計(jì)算變壓器的容量,如何選擇合適功率的變壓器?這里教大家如何一步步的計(jì)算。步驟/方法計(jì)算負(fù)載的每相最大功率將A相、B相、C相每相...
Navigation column
QR code
Contact Us

Fax:0512-57769375 Tel:0512-57768658/36857785/36857795 
E-mail:Department powerex_01@powerex.net.cn
A business powerex_05@powerex.net.cn powerex_06@powerex.net.cn  
personnel powerex_07@powerex.net.cn Finance Department powerex_08@powerex.net.cn