First, the names of single-phase voltage stabilizers and three-phase voltage stabilizers describe the number of power supply phases they can handle respectively. Single-phase voltage stabilizers are suitable for single-phase power systems, that is, systems with only one phase wire, usually used in small household appliances and office equipment. Three-phase voltage stabilizers are suitable for three-phase power systems, that is, systems with three phase lines, usually used in large industrial equipment and machines.
Secondly, single-phase and three-phase voltage stabilizers are also different in structure and principle. Single-phase voltage stabilizers generally consist of a transformer, a control circuit and a voltage regulator. They can maintain a stable voltage output by adjusting the output voltage of the transformer. The three-phase voltage stabilizer consists of three single-phase voltage stabilizers. Each voltage stabilizer is responsible for the voltage regulation of one phase line. The voltage stability of the entire system is maintained by coordinating the three voltage stabilizers.
In addition, single-phase and three-phase voltage stabilizers also differ in power and applicable range. Generally speaking, three-phase voltage stabilizers have greater power and can handle larger-capacity loads, so they are suitable for occasions that require high power in industrial production. Single-phase voltage stabilizers are suitable for small loads and household appliances with smaller power.
Finally, there is a price difference between single-phase and three-phase voltage stabilizers. Because the three-phase voltage stabilizer is more powerful and functional, its manufacturing cost is higher and its price is relatively high. The price of single-phase voltage stabilizer is relatively low and suitable for general home users.