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Full-automatic alternating current voltage compensator

An AC voltage and voltage compensation technology, which is applied in the direction of instruments, AC power input conversion to AC power output, electrical components, etc., can solve the problems that voltage compensation cannot be realized in a timely and reliable manner, and achieve reduced startup time, timely compensation, and The effect of prolonging the service life

Inactive Publication Date: 2009-04-08
山西顺泰电器制造有限公司
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Problems solved by technology

[0003] The present invention provides a fully automatic AC voltage compensator in order to solve the problem that the existing AC voltage compensator can only be manually operated and controlled, resulting in the failure to realize voltage compensation in a timely and reliable manner.

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  • Full-automatic alternating current voltage compensator
  • Full-automatic alternating current voltage compensator
  • Full-automatic alternating current voltage compensator

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Embodiment Construction

[0020]Fully automatic AC voltage compensator, including voltage compensation device KOB, three-phase AC input terminals A, B, C and three-phase AC output terminals a, b, c, and main contactors KM0, KM1, KM2 and contactors Ki’s voltage compensation device KOB control circuit, the voltage compensation device KOB control circuit is connected to the three-phase AC input terminal A, B, C through the three-phase circuit breaker DZ1, as shown in Figure 1, the voltage compensation device includes three-phase iron core, And corresponding to the three-phase coils, secondary coils, and three-phase transition coils wound on the three-phase iron core, the three-phase coils and the three-phase transition coils are respectively provided with taps in the star point direction, and the number of taps h of the three-phase coils is at least Two, the tap number n of the three-phase transition coil is the tap number h of the three-phase coil minus 1, the taps of the three-phase coil and the three-ph...

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Abstract

The invention relates to the field of electrical power appliance power supply, in particular to a full automatic alternating voltage compensator, and solves the problem that the voltage is not compensated timely and reliably as the existing alternating voltage compensator is controlled only by manpower manual operation. The full automatic alternating voltage compensator comprises a voltage compensation device and a control circuit of the voltage compensation device; wherein, the control circuit of the voltage compensation device comprises an automatic control unit and a control transformer which supplies power to the automatic control unit; the automatic control unit comprises a microcontroller, a membrane keyboard and a liquid crystal display (LCD) with raster graphics which are connected with the input / output port of the microprocessor, a midget relay which controls a contactor to gain power or not by contacts, and a micro pressure transformer; the driving chip of the midget relay is connected with the output port of the microcontroller by a photoelectric isolating chip; the secondary output port of the micro pressure transformer is connected with the input port of the microcontroller. The full automatic alternating voltage compensator of the invention has the advantage of reasonable and compact structure and can automatically control the compensation voltage; besides, the compensation is timely, accurate, and the operation reliability is high.

Description

technical field [0001] The invention relates to the field of power supplies of electric appliances, in particular to a fully automatic AC voltage compensator. Background technique [0002] At present, in the process of long-distance power supply, there are generally problems such as too long low-voltage power supply lines, high line loss and large voltage drop. For this reason, the Chinese patent No. "200420117170.X" discloses an "AC voltage compensator". When the compensator is in use, the input voltage is displayed by a current and voltage meter, and the voltage is manually calculated according to the displayed input voltage. Compensation amount, and then the AC voltage compensator is manually operated to achieve voltage compensation, but the compensator itself cannot be automatically controlled to achieve voltage compensation. Since manual control is impossible to truly track the change of the power supply voltage, the AC voltage compensator cannot be guaranteed. Compens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/12G05F1/14G05F1/24H02P13/06
Inventor 张顺清程志宏
Owner 山西顺泰电器制造有限公司
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