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Arcless compensation type single-phase voltage regulating and stabilizing device

A voltage stabilizer, compensation technology, applied in reactive power compensation, adjustment of electrical variables, control/regulation systems, etc., can solve the problems of arc flash, burnt out contacts, etc.

Inactive Publication Date: 2007-06-13
NANNING MICRO CONTROL HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The autotransformer type has instantaneous power failure during the voltage regulation switching process, which will cause arc flash and burn out the contacts, so it can only be used for specific loads, such as air conditioners, etc.

Method used

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  • Arcless compensation type single-phase voltage regulating and stabilizing device

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Embodiment Construction

[0014] The invention will be described in detail below in conjunction with the accompanying drawings.

[0015] As shown in Fig. 1, it is a structural block diagram of the present invention. As can be seen from the figure, it is composed of a protection circuit, a sampling controller, a control circuit and a compensation circuit. The protection circuit is generally composed of overcurrent and overvoltage relays and fuses, and is a conventional circuit. The sampling controller generally includes a single-chip microcomputer, and its working principle is to collect signals from the output terminal, analyze and judge the signals, and then send control signals to the protection circuit and the control circuit. It is also prior art. The present invention is characterized in that the compensation circuit includes a compensation transformer, the control circuit contains several relays and the delay circuit that should be set, the protection circuit and the sampling controller structur...

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Abstract

The invention discloses an arc-free compensatory single phase voltage regulating and stabilizing device, including protection electric appliance, sample controller, control circuit and compensating circuit, and its characteristic: the control circuit includes several relays, the control coil of each relay is controlled by the sample controller and the corresponding contact of each relay controls the compensating circuit. The compensating circuit includes a compensating transformer, the secondary winding coil of the compensating transformer is connected in series between power supply and load and the primary winding coil is provided with several series coils, the tap terminal of each coil is connected with phase or zero lines through the corresponding contacts of several relays of the control circuit. In use course, the voltage and current is uninterrupted, the primary winding coil makes forward or backward compensation on the output of the secondary winding coil by making delayed and arc-free switching of different coil groups under the control of the sample controller and control circuit, realizing the function of adjusting and stabilizing output voltage. It is applied to single phase voltage adjusting and stabilizing power supply.

Description

technical field [0001] The invention relates to a circuit device for compensating reactive power of an AC main line, in particular to a single-phase voltage regulating and stabilizing device for AC power supply. Background technique [0002] Existing single-phase voltage regulating and stabilizing devices are mainly divided into servo motor type and autotransformer type. Since the servo motor type uses carbon brushes for voltage regulation, arcing phenomenon occurs when the carbon brush replaces the thread slot, and the rotor is easy to burn out. . The failure rate is high, and it is not suitable for use in harsh environments. The autotransformer type has instantaneous power failure during the voltage regulation switching process, causing arc flash and burning contacts, so it can only be used for specific loads, such as air conditioners. Contents of the invention [0003] The purpose of the present invention is to provide a single-phase voltage regulation and stabilizati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/24H02J3/12H02J3/16
CPCY02E40/34Y02E40/30
Inventor 骆武宁
Owner NANNING MICRO CONTROL HIGH TECH