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Control device of duplicate supply attent-unattent switch

A technology of automatic transfer switch and control device, which is applied in the direction of circuit device, emergency power supply arrangement, electrical components, etc., can solve the problems of limited popularization and use, low reliability, troublesome wiring and locks, etc., and achieves friendly interface, high reliability and good appearance. beautiful effect

Inactive Publication Date: 2008-04-16
浙江中凯电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, because the controller is composed of a large number of intermediate relays and other components, the volume is large, the wiring is cumbersome, and the reliability is low, so the promotion and use are limited.

Method used

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  • Control device of duplicate supply attent-unattent switch
  • Control device of duplicate supply attent-unattent switch
  • Control device of duplicate supply attent-unattent switch

Examples

Experimental program
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Embodiment Construction

[0025] Referring to Fig. 1, this is a structural block diagram of a control device for a dual-power automatic transfer switch of the present invention.

[0026] As shown in the figure, the external interface input of the entire control device is the input terminal of the common power supply, and the output is the control terminal of the normal power supply and the standby power supply. The interface with the user has voltage setting, including overvoltage, undervoltage, and delay setting, including Overvoltage delay, undervoltage delay.

[0027] The control device first rectifies and filters the connected common power supply to obtain the working power supply and reference power supply, and processes the common power supply to obtain the voltage acquisition signal and phase failure signal, and then performs logic processing together with the voltage setting signal and delay setting signal, The relay is driven by the driving circuit to control the switching between the common p...

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PUM

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Abstract

The present invention relates to a control device for a two-supply automatic transfer switch, which comprises a control device power circuit, a reference voltages circuit, a voltage collecting circuit, a voltage commutation and voltage comparison circuit, a delay commutation and timing circuit, a relay driving circuit and a power state display circuit. The entire control device realizes the logic control function of the two-supply automatic transfer through optimized analogue circuit and sends out action command according to delay time defined by users when common power occurs over-voltage fault or under-voltage fault, and switches the power to bake power by an execution mechanism. The fluctuation problem of output relay is solved by comparing output feedback circuit when common voltage fluctuates in critical points of over-voltage and under-voltage. At the same time, the users can perform commutation of over-voltage, under-voltage, over-voltage delay and under-voltage delay according to use condition in field, thereby fully satisfying various requirements of the two-supply automatic transfer in the field.

Description

technical field [0001] The invention relates to a control device for a dual-power automatic transfer switch, which belongs to the technical field of low-voltage electrical appliances. Background technique [0002] With the development of social production, many industries and departments have very high requirements on the reliability of power supply. In order to ensure the continuity of power supply, some important devices should be powered by dual power supply. As a necessary device for power switching, the application requirements of dual power automatic transfer switching appliances are becoming more and more extensive, and the technical performance requirements are also getting higher and higher. [0003] From the structural point of view, the dual power automatic transfer switch can be composed in different ways. It can be assembled by 2 contactors, or it can be composed of 2 circuit breakers. Correspondingly, there are different types of control methods. The develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
Inventor 黄世泽郭其一朱谅屠瑜权
Owner 浙江中凯电器有限公司
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