SVC/TNS/TND series single and three-phase high-precision automatic AC regulator is composed of contact autotransformer voltage regulator, servo motor, automatic control circuit, etc., when the grid voltage is unstable or the load changes, the automatic sampling control circuit sends a signal to drive the servo motor, adjust the position of the autotransformer regulator carbon brush, so that the output voltage is adjusted to the rated value and reaches a stable state. SVC/TNS/TND series high-precision AC regulator series regulator, with mains direct function. It has the advantages of many varieties, complete specifications, and beautiful appearance. It has the advantages of no waveform distortion, high efficiency, reliable performance, and long-term operation, and is equipped with protection functions such as short delay and overvoltage, and can be added with long delay and undervoltage protection functions according to user needs. The product can be widely used in any power consumption place, and is an ideal voltage regulated power supply to ensure the normal operation of your power equipment. Office equipment, testing equipment, medical equipment, industrial automation equipment, household appliances, lighting systems, communication systems, etc.