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AC power supply PLC uninterrupted switching device

A switching device and AC power supply technology, applied in circuit devices, emergency power supply arrangements, electrical components, etc., can solve problems such as uneconomical, waste of power, and increase power pollution, and achieve stable performance and fast switching.

Pending Publication Date: 2017-11-14
毛思杰 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is uneconomical for departments that have two-way AC power supply and at least one way of power supply can be guaranteed. It will not only waste power, but also increase power supply pollution.

Method used

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  • AC power supply PLC uninterrupted switching device
  • AC power supply PLC uninterrupted switching device
  • AC power supply PLC uninterrupted switching device

Examples

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Effect test

Embodiment Construction

[0025] The following is attached Figure 1-5 , the specific implementation manner of the present invention will be further described in detail, so as to make the technical solution of the present invention easier to understand and grasp.

[0026] A kind of AC power supply PLC uninterrupted switching device, such as figure 1 As shown, it is composed of a control circuit and a main circuit. The control circuit is composed of a power transformer, a rectifier circuit, a voltage sampling, a voltage stabilizing circuit, an interface circuit, a PLC programmable controller, a trigger circuit, a driving circuit, an electromagnetic relay K and a working instruction Circuit configuration, the power transformer, rectifier circuit, voltage sampling, voltage stabilization circuit, interface circuit, PLC programmable controller, trigger circuit, drive circuit, electromagnetic relay K and work instruction circuit are connected in sequence, and the main circuit is connected by a circuit breake...

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PUM

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Abstract

The invention discloses an AC power supply PLC uninterrupted switching device which is composed of a control circuit and a main loop. The control circuit is composed of power transformers, rectifier circuits, voltage samplers, a voltage regulator circuit, interface circuits, a PLC programmable logic controller, trigger circuits, drive circuits, an electromagnetic relay K and a work indication circuit. The main loop is composed of circuit breakers QS, fuses FU, relays K and two-way thyristors KS. The device has stable performance, and is quick in switching. The device is suitable for an occasion in which power is supplied by two AC power supplies, and allows certain phase difference between the two power supplies. When the main power supply is cut off, the PLC uninterrupted switching device will connect the standby power supply to the electrical circuit of a load very quickly to provide uninterrupted power for the load, in order to meet the need for normal operation of equipment.

Description

technical field [0001] The invention relates to an AC power supply PLC non-stop switching device. Background technique [0002] As we all know, some important departments that cannot be powered off are powered by dual AC power supply. When the original power supply is cut off, the backup power supply can be cut in very quickly to ensure the normal operation of computers, databases or other system equipment that cannot be powered off. The switching between power sources is the key to ensure uninterrupted power supply, and the switching time, reliability and safety of the automatic switching device are very important. Now, many departments use uninterruptible power supply for power supply during power outages. This method requires a certain number of batteries, which invisibly increases operation and maintenance costs, and the power supply time of uninterruptible power supply is limited. This is uneconomical for departments that have two-way AC power supply and at least one ...

Claims

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Application Information

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IPC IPC(8): H02J9/06
CPCH02J9/061Y04S20/20Y02B70/30
Inventor 毛思杰何飞雄
Owner 毛思杰
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