启动前不是还有灭磁回路吗？正常时侯最好还是调到额定励磁电压值，启动的时候励磁电压的大小与启动电流关系不大，电动机还是异步启动，遵循异步电机启动原理。

我也在搜集这方面的资料，学习一下

iacmall自动化商城

http://www.iacmall.com/Sitemap_812.html
http://www.iacmall.com/Sitemap_813.html
http://www.iacmall.com/Sitemap_814.html
http://www.iacmall.com/Sitemap_815.html
http://www.iacmall.com/Sitemap_816.html
http://www.iacmall.com/Sitemap_817.html
http://www.iacmall.com/Sitemap_818.html
http://www.iacmall.com/Sitemap_819.html
http://www.iacmall.com/Sitemap_820.html
http://www.iacmall.com/Sitemap_821.html
http://www.iacmall.com/Sitemap_822.html
http://www.iacmall.com/Sitemap_823.html
http://www.iacmall.com/Sitemap_824.html
http://www.iacmall.com/Sitemap_825.html
http://www.iacmall.com/Sitemap_826.html
http://www.iacmall.com/Sitemap_827.html
http://www.iacmall.com/Sitemap_828.html
http://www.iacmall.com/Sitemap_829.html
http://www.iacmall.com/Sitemap_830.html
http://www.iacmall.com/Sitemap_831.html
http://www.iacmall.com/Sitemap_832.html
http://www.iacmall.com/Sitemap_833.html
http://www.iacmall.com/Sitemap_834.html
http://www.iacmall.com/Sitemap_835.html
http://www.iacmall.com/Sitemap_836.html
http://www.iacmall.com/Sitemap_837.html
http://www.iacmall.com/Sitemap_838.html
http://www.iacmall.com/Sitemap_839.html
http://www.iacmall.com/Sitemap_840.html
http://www.iacmall.com/Sitemap_841.html
http://www.iacmall.com/Sitemap_842.html
http://www.iacmall.com/Sitemap_843.html
http://www.iacmall.com/Sitemap_844.html
http://www.iacmall.com/Sitemap_845.html
http://www.iacmall.com/Sitemap_846.html
http://www.iacmall.com/Sitemap_847.html
http://www.iacmall.com/Sitemap_848.html
http://www.iacmall.com/Sitemap_849.html
http://www.iacmall.com/Sitemap_850.html
http://www.iacmall.com/Sitemap_851.html
http://www.iacmall.com/Sitemap_852.html

同步电机启动主要是依靠异步转矩启动的，达到亚同步速后才能投励。过去投励时一般加强励，但从拍出的照片看，如果电机励磁电流大，会对启动造成比较大的冲击，反倒不利于快速进入同步。所以，在投励时，励磁电流不宜太大，在70%-80%左右就可以。但有些工厂怕麻烦，一般正常运行时是多大电流，启动时也是多大电流。从运行看，也是允许和安全的。只要保证在启动后，电机功率因数是超前的就可以