| 摘要 |
PURPOSE:To improve the operating performance of a DC rotary machine by connecting a main pole field shunt circuit in parallel with a series connection circuit of a main pole field winding and an interpole field winding, thereby improving the accuracy of a shunt resistor. CONSTITUTION:An interpole circuit 2, a main pole field circuit 3 and a compensating winding 4 are connected in series with an armature circuit 1, and a shunt resistor 6 and a DC reactor 5 are connected in parallel with the interpole circuit 2 and the main pole field circuit through a switch 9. In other words, a main pole field shunt circuit is formed of the switch 9, the resistor 6 and the reactor 5. |
