Design and application of synchronizing circuit under 3/2 connection mode

The design requirement and application situation of the synchronizing circuit under 3/2 connection mode were expounded,in which the synchronization control circuit design,the synchronization AC voltage loop design and the synchronization check test of large generator set under 3/2 connection mode were included.The purpose of this paper is to ensure the synchronizing operation of the units under 3/2 connection mode to be more rational,perfect and security.