| 摘要 |
A starting circuit for a synchronous machine having controlled semi-conductors in the individual winding circuits of the machine is disclosed in which at least one auxiliary circuit connected in parallel to the windings is used. The auxiliary circuit comprises a capacitor which prior to operation of the circuit, is charged to a voltage opposite to the conducting voltage of the winding thyristors. An auxiliary thyristor connected to conduct in the same direction as the winding thyristors is connected in series with the capacitor and a diode of opposite polarity is connected in parallel to the auxiliary thyristor. |
