Unlock instant, AI-driven research and patent intelligence for your innovation.

Electricity saving device of full automatic three-phase motor

A three-phase motor, fully automatic technology, applied in the direction of adjusting electric variables, AC motor control, instruments, etc., can solve the problems of power loss, large coil volume, inconvenient installation, etc., and achieve the effect of reducing voltage and current

Inactive Publication Date: 2007-05-09
江门市盛航光电环保科技有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of power saver is equipped with a reactor, and the coil of the reactor has a large volume and a heavy iron core, which is inconvenient to install and consumes a certain amount of electric energy.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electricity saving device of full automatic three-phase motor
  • Electricity saving device of full automatic three-phase motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Referring to Figure 1, the fully automatic three-phase motor power saver includes a power factor generating circuit U1, a signal amplifying circuit U2, a trigger circuit U3 and a bridge rectifier circuit group U4. L3 connection, the output end of the power factor generation circuit U1 is connected to the signal amplifier circuit U2, the output end of the signal amplifier circuit U2 is connected to the trigger circuit U3, the three-phase power L1, L2, L3 is connected to the three-phase motor after the trigger circuit U3, bridge rectification The circuit group U4 is respectively connected to the power input terminals of each circuit.

[0011] The composition and principle of each resistor will be described in detail below with reference to FIG. 2 .

[0012] (1) The power factor generation circuit U1 is used to detect the change of the power factor of the three-phase motor. It is a three-phase phase detection circuit. The input terminal of the first phase L1 is connected t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

It consists of the power factor generation circuit (PFG), the signal amplification circuit (SA), the trigger circuit (TR) and the bridge rectification circuit group (BRG). The input end of PFG connects to the 3- phase power supply. The output end of PFG connects to SA. The output end of SA connects to TR. The 3- phase power supply goes through TR and connects to the 3- phase motor. BRG connects with the power input ends of all circuits respectively. PFG, the signal amplification protection circuit and the controllable-silicon lead-angle regulation circuit (CLR) are adopted. CLR regulates the lead-angle of the controllable-silicon to raise or reduce the voltage applying on the motor to save electricity. The invention possesses features of simple structure, small volume, light weight, easy to install and obvious effect on saving electricity. It suits specially for the 3- phase motor with load change frequently or with intermissive work.

Description

technical field [0001] The invention relates to a power saver, in particular to a fully automatic three-phase motor power saver. Background technique [0002] In industrial and agricultural production, three-phase motors are widely used as power. At present, the motors selected by the mechanical equipment commonly used in factories are matched according to the maximum power required by the machinery. In actual use, the time of full load is very small, such as stamping machine tools, stretching equipment, injection molding machinery, etc., all work intermittently. Motors are often run under no-load or light-load conditions, resulting in wasted power. In order to solve this problem, people have thought of many ways, so a variety of power savers have emerged at the historic moment. Most of the current power savers use the motor to reduce the voltage when it is light-loaded to save electricity. One is to use the principle of changing the motor star-delta connection to achieve ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02P25/16G05F1/70
Inventor 陈景林李志成
Owner 江门市盛航光电环保科技有限公司