After the transformation of the city network has been completed, the structure of the low-voltage power grid has undergone great changes, and the weak links of the power grid structure have basically been solved, but there are still a large number of single-phase, asymmetric, non-linear, unbalanced loads and other problems (such as: At present, most of the power users are single-phase load electricity, and there is intermittent electricity, seasonal electricity, etc.), which leads to the imbalance of three-phase voltage and current of the power supply system, speeding up the damage degree of distribution transformers and lines and their service life, causing greater difficulties and losses to power supply management enterprises, especially the grass-roots power supply department. Therefore, Yueqing Rockwell Automation Co., Ltd. has developed a three-phase load imbalance automatic regulation device that can compensate the three-phase unbalanced current and reactive power requirements to achieve continuous and dynamic compensation.
Three-phase load imbalance automatic regulation device can comprehensively improve the power quality of the station area, as follows:
1) Solve the problem of three-phase imbalance in the distribution network and reduce line losses;
2) Stabilize the three-phase voltage, improve the quality of power supply, and improve the electricity environment;
3) Solve the single-phase overload problem of the transformer and improve the operation life of the transformer;
4) Reactive power balance, improve the effective output capacity of the distribution network.
