Universal type power-saving device

Abstract

The invention relates to a universal type power-saving device. A grid power supply input interface is connected with the input end of a filter circuit; the output end of the filter circuit is respectively connected with the input end of an automatic voltage stabilizing and regulating circuit, the input end of a reference circuit and the input end of an overcurrent protection circuit; the output end of the automatic voltage stabilizing and regulating circuit is connected with the input end of an output control circuit; the output end of the output control circuit is connected with the input ends of a sampling circuit and an automatic compensating circuit; a control circuit is arranged between the sampling circuit and the automatic compensating circuit; the output ends of the reference circuit and the overcurrent protection circuit are connected with the input end of the control circuit; and the output end of the control circuit is connected with the output control circuit and the automatic voltage stabilizing and regulating circuit. In the invention, various surges and transitions in a grid are filtered, characteristic harmonic waves are removed, the line loss is reduced and the power quality of a user is improved by modular design, thus the invention is suitable for various conditions and achieves dual efficiencies of power saving and power equipment protection.

Description

technical field [0001] The invention relates to a power saving device, in particular to a general power saving device. Background technique [0002] With the rapid growth of my country's power energy consumption, energy saving has become a long-term strategic issue related to my country's national economic security, international market competitiveness of enterprises, resource and environmental protection and other economic and social sustainable development. For many years, all parts of the country have been in a state of unprecedented tension in electricity consumption. Due to the rapid economic development directly leading to a sharp increase in electricity consumption, the power supply has been tightened in an all-round way. At the same time, the electricity bill is usually the third largest cost of the enterprise unit, but it is a very astonishing enterprise cost. Now enterprises have generally recognized that the use of power-saving products brings benefits to enterpri...

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Problems solved by technology

[0003] At present, there is a common situation of poor power quality in the power supply grid. The rapid development of social economy and the use of various new electrical equipment make this situation more serious, which has a great impact on the user's electrical equipment. The most direct performance Because the equipment is not working properly, the life is short, the electricity bill is high, the efficiency of the transformer is low, etc.

In the power consumption systems of general administrative institutions and industrial and commercial enterprises, there are mostly small loads, the working conditions are different, and the power factor is generally not high; there are many types of electrical equipment, and the use of a large number of electronic devices and switches reduces the power quality; In the electrical system, problems such as equipment configuration, line laying irregularities, and line aging lead to increased line losses; when enterprises develop new equipment, they are limited by the capacity of transformers with low output. Large power loss

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