| 摘要 |
PURPOSE:To make it possible to compensate the errors of both of speed loops including double redundancy winding, using a compensating means placed in either of them. CONSTITUTION:A compensating means 7 is placed only in one of speed loops 22, 23. The compensating means 7 compensates the errors of the speed loop 22 or 23, and further compensates those of the other speed loop 23 or 22. |
