三相电源相序及断相判别器设计与制作

Design and Fabrication of Phase Sequence and Missing Phase Discrimination of Three-phase Power

三相交流电源的相序决定交流电动机的旋转方向,每次电网在倒换线路后,首先测试相序是否正确,然后供电开始生产。为了实现安全生产,设计了一款用于测试相序或判断断相的简便设备,,该设计新颖、简洁、安全、实用。

AC motor rotation direction depends on the phase sequence of three-phase AC power supply, so each grid line switching, first of all, test sequence is correct, then the power supply to start production. In order to realize safety in production, a simple equipment used to test sequence or judge fault phase is designed, the design is novel, simple, safe, and very practical.