The TCR series of three-phase fully automatic compensating power regulators are designed to stabilize AC voltage by introducing Western European cash technology. When the external power supply network voltage fluctuates or the load changes cause voltage fluctuations, it can automatically maintain the output voltage stablize. Compared with other types of voltage stabilizers, this series of products has the advantages of large capacity, high efficiency, no waveform distortion and stable voltage adjustment. It is suitable for a wide range of loads, can withstand instantaneous overload and can work continuously for a long time. Manual/automatic switching at will, with overvoltage, overcurrent, phase loss, phase sequence protection and automatic mechanical failure protection, as well as the advantages of small size, light weight, convenient use and installation, and reliable operation.