Non-breakpoint operation type power-saving device

Abstract

The invention discloses a non-breakpoint operation type power-saving device which comprises a power-saving circuit, a bypass circuit, a power-saving control circuit and an overcurrent protection control circuit, wherein the power-saving control circuit comprises a voltage signal sampling circuit, a power-saving gear control circuit, a drive circuit, a rectification circuit, a direct current voltage-stabilizing circuit and a voltage zero-point trigger circuit, the overcurrent protection control circuit comprises a current transformer, a current signal sampling circuit, an overcurrent signal judgment circuit, a power-saving contactor and a bypass contractor. The non-breakpoint operation type power-saving device can regulate power supply lines in time according to parameter information fed back by changes of the input voltage of a power grid and an electric load to change input voltage and current so as to optimize power supply parameters and restrict extra power output, thereby saving the electric power. In addition, the voltage zero-point trigger circuit is used to trigger an electromagnetic compensator through the drive circuit, thereby inhibiting the generation of harmonic wave, reducing the amplitude of rush current, realizing the non-breakpoint power-saving conversion of circuits and prolonging the service life of electric equipment further.

Description

technical field [0001] The invention relates to a power saving device, in particular to a power saving device suitable for use in a 380V or 220V power supply system of an AC low-voltage power grid. Background technique [0002] Reducing energy consumption is a basic national policy of our country. During the "Twelfth Five-Year Plan", China is still in the stage of accelerated industrialization, energy resources and environmental constraints are becoming more and more intensified, and the tasks of industrial transformation and upgrading and green development are heavy. Five" is heavier. To this end, thoroughly implement the scientific concept of development, insist on reducing energy consumption intensity, promote technological progress, strengthen engineering measures, greatly improve energy utilization efficiency, promote energy conservation and emission reduction work pattern, and ensure the realization of the "12th Five-Year" energy conservation and emission reduction con...

Images