Study of Energy-Saving Controller of Lights Based on Non-Contact Voltage Regulation Technology

Based on multi-tap autotransformer step-down equipment and the introduction of OLTC and power electronics technologies to save energy caused by midnight voltage rise in the microcontroller AT89C51 is used to control the voltage by power electronic devices consisting of solid-state relay by taking full account of voltage fluctuations.According to the monitoring of the voltage value and comparing with baseline values,is adjusted the voltage and real-time monitoried.The system can ensure the normal power supply and energy is efficient.