| 摘要 |
<p>PURPOSE:To improve a reliability and a safety, by providing tertiarywindings in the current transformer of excitation device for three-phase 4-wire self-excited AC generator having a load current compensating current transformer, with these tertiary windings ring-connected. CONSTITUTION:The output from secondary windings 4R-2, 4S-2 and 4T-2 of reactor 4 and current transformers 4R, 4S and 4T, connected to each output line of an AC generator 1, after being rectified by a rectifier 5, is fed to a field winding 2. Primary windings 4R-1, 4T-1 of the current teansformer 4R, 4S and 4T is inserted to each output line of the AC generator 1 with tertiary windings 4R-3, 4S-3 and 4T-3 connected in a ring pattern.</p> |
