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PC-level dual-power source automatic change-over switch

A technology of automatic transfer switch and dual power supply, which is applied in the direction of electric switch, emergency power supply arrangement, power device inside the switch, etc., which can solve the problems of increasing the power consumption of the transfer switch, increasing the circuit resistance, and inconvenient assembly, etc. Effects of Power Dissipation, Avoidance of Simultaneous Closures, Avoidance of Possibilities

Inactive Publication Date: 2016-01-06
WENZHOU POPP ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional PC-level automatic transfer switch mainly has the following deficiencies: 1. The traditional PC-level automatic transfer switch uses the A-phase of the two power supplies (common power supply and backup power supply) to supply power to the transmission mechanism and the intelligent controller, such as the two-way power supply When all phase A is powered off (especially the mains power generation), the transmission mechanism and intelligent controller cannot work, and the motor will be burned when the load end is a motor device; 2. The traditional PC-level automatic transfer switch, two power sources (common power supply , Standby power supply) have separate and independent contact systems and transmission mechanisms, thus requiring two sets of independent contact systems and transmission mechanisms plus mechanical interlocking, the structure is relatively complex, and assembly is inconvenient. If the mechanical interlocking is not reliable, it may It is possible to connect two power sources; 3. The common power supply or backup power supply of the traditional PC-level automatic transfer switch has a load terminal, and the two load terminals need to be connected with an external short-circuit busbar to increase the circuit resistance and increase the power of the transfer switch. consumption

Method used

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  • PC-level dual-power source automatic change-over switch
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Embodiment Construction

[0024] As shown in the figure, the PC-level dual-power automatic transfer switch of the present invention includes a base plate 14 and a contact system, a transmission mechanism, a rectifier and an intelligent controller 9 installed on the base plate 14. The contact system consists of three single-phase contacts. The head unit is composed of stacked front and back, the transmission mechanism is set between the contact system and the intelligent controller 9, the transmission mechanism is controlled and driven by the motor 8, and the rectification device is located on the side of the transmission mechanism. The rectification device includes a piezoresistor 10 and a one-way transformer 12 , rectifier bridge 11 and common-mode suppression coil 13, the common and standby power supplies of each phase are connected to the input terminals of respective unidirectional transformers 12 respectively, and the AC220V is transferred to AC24V, and then the AC24V power supply is transferred to ...

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Abstract

The invention discloses a PC-level dual-power source automatic change-over switch. The PC-level dual-power source automatic change-over switch is characterized in that the PC-level dual-power source automatic change-over switch includes a bottom plate as well as a contact system, a transmission device, a rectifying device and an intelligent controller which are installed on the bottom plate; a plurality of single-phase contact units are stacked in a front-and-back manner so as to from the contact system; the transmission mechanism is arranged between the contact system and the intelligent controller; the transmission mechanism is driven under the control of a motor; the rectifying device is arranged at one side of the transmission mechanism; and the rectifying device includes an one-way transformer, a rectifier bridge and a common-mode suppression coil. The PC-level dual-power source automatic change-over switch of the invention has the advantages of simple structure and convenient assembly. The normal work of the PC-level dual-power source automatic change-over switch can be guaranteed as long as any one phase of two power sources is switched on, and the safety of electricity utilization can be ensured; a commonly-used power source and a standby power source share one load end, and the power consumption of the switch can be decreased; the accuracy of the position of the switch in the switching of the two power sources can be greatly ensured; the possibility of simultaneous switching off of the two power sources under any circumstances can be eliminated, and the reliability of power supply and the safety of electrical equipment can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to a PC-level dual-power automatic transfer switch. Background technique [0002] The PC-level automatic transfer switch mainly ensures that the electrical equipment in important power-consuming places cannot be powered off and the reliable operation of the electrical equipment. The operation reliability of the PC-level automatic transfer switch has a direct relationship with the contact system, transmission mechanism, and intelligent controller. relation. The traditional PC-level automatic transfer switch mainly has the following deficiencies: 1. The traditional PC-level automatic transfer switch uses the A-phase of the two power supplies (common power supply and backup power supply) to supply power to the transmission mechanism and the intelligent controller, such as the two-way power supply When all phase A is powered off (especially the mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/26H01H3/32H01H9/26H02J9/06
CPCH01H3/26H01H3/32H01H9/26H01H2300/018H02J9/061H02J9/068Y02B70/30Y04S20/20
Inventor 黄央伟
Owner WENZHOU POPP ELECTRIC
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