发电机空载电压是额定值的多少

kong zai dian liu you ci hua dian liu （chan sheng ci tong ）he tie sun dian liu （you tie xin sun hao yin qi ）zu cheng 。dang e ding pin lv xia de e ding dian ya （fen jie dian ya ）shi jia dao yi ge rao zu de duan zi ，qi ta rao zu kai lu shi ，liu jing " cong er shi xiang ying de gan ying dian dong shi xia jiang 2 ）dian shu dian ya he zhuan su cheng zheng bi ，yong ci ti de kong zai dian dong shi shi yong ci li ci ji de dian dong shi ，dang ci liu ti fa dian ji wen ding gong dian shi ，tong bu de shi hou ，ji liang ban jian ji "

汽车中发动机电压空载电压在13伏左右，负载电压大于11伏，(一般就是在12V-16V)而低于这个负载电压时就可能会出现发动机启动不起来或者启动非常困难的现象。汽车启动后发电机开始发电，12伏车系的蓄电池电压应为13.从而使相应的感应电动势下降2）电枢电压和转速成正比，永磁体的空载电动势是永磁励磁机的电动势，当磁流体发电机稳定供电时，同步的时候，即两板间集

fa dong ji zai kong zai qing kuang xia dian ya ying gai zai 1 3 fu zuo you , fu zai dian ya ze ying gai zai 1 2 V - 1 6 V zhi jian 。ru guo dian ya di yu zhe ge fu zai dian ya , ke neng hui dao zhi fa dong ji qi dong kun nan huo zhe wu fa qi dong 。dang qi che qi dong hou , fa dian ji kai shi fa dian , 1 2 fu che xi de xu dian chi dian ya ying wei 1 3 . 5 - 1 4 . 5 fu " 空载电流由磁化电流（产生磁通）和铁损电流（由铁芯损耗引起）组成。当额定频率下的额定电压（分接电压）施加到一个绕组的端子，其他绕组开路时，流经

fa dian ji kong zai dian ya qu jue yu qi kong zai qi xi ci chang ，er fa dian ji kong zai qi xi ci chang yu li ci dian liu de da xiao ，zhuan zi ci ji xing zhuang 、ding zi chi cao xing zhuang 、qi xi da xiao ji tie ci cai liao de bao he cheng du dou you guan xi 。" qi che zhong fa dong ji dian ya kong zai dian ya zai 1 3 fu zuo you , fu zai dian ya da yu 1 1 fu , ( yi ban jiu shi zai 1 2 V - 1 6 V ) er di yu zhe ge fu zai dian ya shi jiu ke neng hui chu xian fa dong ji qi dong bu qi lai huo zhe qi dong fei chang kun nan de xian xiang 。qi che qi dong hou fa dian ji kai shi fa dian , 1 2 fu che xi de xu dian chi dian ya ying wei 1 3 " .

发电机空载电压取决于其空载气隙磁场，而发电机空载气隙磁场与励磁电流的大小，转子磁极形状、定子齿槽形状、气隙大小及铁磁材料的饱和程度都有关系。发动机在空载情况下电压应该在13伏左右，负载电压则应该在12V-16V之间。如果电压低于这个负载电压，可能会导致发动机启动困难或者无法启动。当汽车启动后，发电机开始发电，12伏车系的蓄电池电压应为13.5-14.5伏