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Improved Starting Process Alternative to Conventional Star-Delta Switching of A-C Meters

机译：改进的启动过程替代传统的A-C仪表的星三角切换

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摘要

For the purpose of reducing mechanical shocks caused by the sudden increase of torque, and to avoid high current transients as a result of the interruption of supply in the conventional stardelta switching, an alternative starting process is presented here. It is proposed to start the motor on the unbalanced-delta connection in which a resistance is inserted in one of the lines feeding its delta-connected stator. When the running speed has been reached, the resistance is bridged to permit normal balanced running. It is also proposed to use the unbalanced-delta connection as an intermediate step in star-delta switching. In this respect, the once suggested open-delta connection is proved unsuitable for this purpose.
机译：为了减少由扭矩的突然增加引起的机械冲击，并且为了避免由于传统的星形开关中的电源中断而引起的高电流瞬变，这里提出一种替代的启动过程。建议在不平衡三角形连接上启动电动机，在该不平衡三角形连接中，在向其三角形连接的定子供电的线路之一中插入一个电阻。当达到运行速度时，电阻被桥接以允许正常平衡运行。还建议将不平衡增量连接用作星形增量切换的中间步骤。在这方面，曾经建议的开放式三角形连接被证明不适用于该目的。

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