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A dual power supply automatic transfer switch appliance

An automatic transfer switch and dual power supply technology, which is applied in relays, emergency power supply arrangements, circuits, etc., can solve the problems of unsatisfactory mechanical interlock reliability, failure to meet the use requirements, slow conversion speed, etc., and achieve obvious power saving effects. Good dustproof effect and close power factor

Inactive Publication Date: 2017-06-16
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second stage is the circuit breaker type, which belongs to the CB class. It is composed of two circuit breakers, an electric mechanism and a mechanical interlock mechanism. It has the function of short circuit or overcurrent protection. Comply with the use requirements of fire-fighting loads and other places, and its application field has certain limitations
At present, the problem of low interlock reliability has been overcome. If the weakness of high power consumption can be improved by technical means, the purpose of energy saving and environmental protection can be achieved, and the temperature rise can be reduced to improve its reliability, which can greatly improve its cost performance. Bringing the replaced CC-Class ATSE back to life

Method used

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  • A dual power supply automatic transfer switch appliance
  • A dual power supply automatic transfer switch appliance
  • A dual power supply automatic transfer switch appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: see Figure 1 ~ Figure 2 , a dual-power automatic transfer switch electrical appliance, including a base 1, two AC contactors 2 arranged on the base 1 as a normal power switch and a backup power switch respectively, and being arranged between the two AC contactors to avoid The mechanical interlock device 3 for the two AC contactors 2 to be closed at the same time, and the controller for controlling the operation of the two AC contactors 2; wherein, the AC contactor 2 located at the switch end of the common power supply is defined as the common contactor 21, which is located at The AC contactor 2 at the switch end of the standby power supply is defined as a standby contactor 22; it is characterized in that: the controller includes a control circuit, and the control circuit includes a working power supply module for supplying power to the system circuit, as a control unit module for central data processing, respectively connected with The power supply voltage s...

Embodiment 2

[0050] Example 2: see figure 2, this embodiment is basically the same as Embodiment 1, except that: the instantaneous high-voltage starting circuit includes a high-voltage rectifier bridge BG2', and a starting relay K1' with double sets of normally open contacts that controls the switching of the instantaneous high-voltage starting circuit; The low-voltage holding circuit includes a step-down transformer T1'; wherein, the common end of the starting relay K1' and the input end of the step-down transformer T1' are connected to the common end of the power selection relay K3', and the normally open output end of the starting relay K1' and The output terminals of the step-down transformer T1' are all connected to the input terminals of the high voltage rectifier bridge BG2'; ​​the output terminals of the high voltage rectifier bridge BG2' are connected to the common terminal of the input selection switch K2'. The input selection switch K2' is a normally open contact and a normally...

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Abstract

The invention discloses a double-power-supply automatic changeover switching device. The double-power-supply automatic changeover switching device comprises two alternating-current contactors arranged on a base, and a mechanical interlocking device for preventing the two alternating-current contactors from being opened and closed at the same time, wherein an iron core of each alternating-current contactor is composed of whole pig iron or a steel plate; and the connection of an energy-saving circuit module and the utilization of a selective switch are matched and the two alternating-current contactors share one energy-saving circuit module, so that one energy-saving circuit module is saved, a circuit structure is simplified, the reliability of a circuit is increased and the cost is saved. The double-power-supply automatic changeover switching device has the main following advantages that the structure is simple and compact, the reliability is high and the power consumption is small; and the economical efficiency is good, the cost performance is high, CB-grade ATSE defects do not exist, the maintenance is very convenient, the maintenance cost is low, and energy conservation and environmental protection are realized. The PC-grade ATSE can be replaced and a current low-carbon economical society theme is met; and current national energy-saving and emission-reduction policies are also met, and the popularization value is relatively large.

Description

technical field [0001] The invention relates to a low-voltage electrical appliance, in particular to a dual-power conversion switching appliance with an AC contactor as the main switch. Background technique [0002] In some important occasions of low-voltage power distribution, in order to reduce economic losses caused by power outages, two power sources are used for power supply: common power supply, backup power supply or mutual backup power supply. Power supply, all the way to power the diesel generator. When one power supply fails to supply power normally due to a fault during the power supply process, the device whose load can be switched to another power supply is called a dual power supply switching device, or TSE for short, and the device whose load is automatically switched to another power supply is called an automatic power supply. Transfer switch electrical appliances, referred to as ATSE. [0003] At present, ATSE is generally composed of two parts: the automa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H47/02H02J9/06
CPCH01H47/02H02J9/06Y02B70/30Y04S20/20
Inventor 张焕明
Owner FOSHAN UNIVERSITY
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