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tong bu fa dian ji jian yi zi dong heng ya zhuang zhi
Author(s): 
Pages: 29
Year: Issue:  10
Journal: Farm Machinery

Keyword:  励磁线圈电流桥式整流发电机电压发电机转速他励硅二极管输出电压工作原理可变电阻;
Abstract: <正>人工调压的他励同步发电机,在负荷变化快的时候,保证不了输出电压的稳定。为此,可在励磁机上,加装一套自动恒压装置(适于要求不高的场合)。工作原理互感器4LH(用废的改制)一次线圈串联在外负荷电路中(见图),二次线圈电流经硅二极管D1~4桥式整流后,进入励磁机L的励磁绕组LQ。在发电机开始运转时,仍用原来的线绕电阻R1调节发电机电压。待发电机转速和电压均达到额定值后,即可接入
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