| 摘要 |
PURPOSE:To accurately compensate the voltage distortion of a main circuit by providing an RC filter which delays electric angles of the respective phase outputs of a transformer for a synchronous power source in the prescribed amount. CONSTITUTION:Resistors X1, X2..., X6 are respectively connected to the secondary side outputs of a transformer for a synchronous power source, and capacitors C1, C2, C3 are respectively connected between the phases to form an RC filter F. In this case, the values of the resistors X1-X6 and capacitors C1-C3 are determined to delay 60 deg.. Since the CR time constant can be corresponded to 60 deg. by delaying the output phase at 60 deg. of an electric angle by the RC filter, the disconnection or jumping voltage due to the switching of the voltage of the main circuit power source can be absorbed. |
