KY series three-phase thyristor speed regulator is a simple voltage regulator newly introduced by our company. It uses intelligent control circuit to control thyristor in full wave, digitally senses motor speed through specific sensors, and then converts it into analog voltage to realize speed regulation. Because of the special circuit, the motor speed can be effectively controlled, especially the variable load mechanical speed can be guaranteed to be stable and the rigid torque characteristics can be obtained. The product has the advantages of high reliability, strong economy, stable performance, good torque characteristics and power saving. It can be widely used in textile, printing, pharmaceuticals, food, packaging, chemical industry and other industries, as well as in the speed regulation of pumps, fans, etc.