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Double circuit power supply switching system

A switching system and dual power supply technology, which is applied in the direction of power network operating system integration, emergency power supply arrangement, information technology support system, etc., can solve the problems that cannot meet the needs and the service life does not exceed 5,000 times

Inactive Publication Date: 2009-11-04
沈阳斯沃电器有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

At present, the power switching system using isolating switch or circuit breaker generally has a service life of no more than 5,000 times, which is far from meeting the needs

Method used

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Examples

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Embodiment Construction

[0009] Such as figure 1 As shown, the dual power supply switching system includes a DC-DC power switching device 2 and its intelligent controller 8 and an AC-DC power switching device 6 and its intelligent controller 8 . The power switching device adopts a contactor 3 structure with a self-locking device 6, and the contactors 3 are connected through an interlocking device 5.

[0010] The DC-DC power switching device includes two DC contactors 3 fixed on the installation base plate, including two DC contactors 3 fixed on the installation base plate 4, and also includes a mechanical interlock device 5, a self-locking device 6, an auxiliary contactor Head 2, intelligent controller 8 and manual operation handle 7, a mechanical interlocking device 5 is installed between the two DC contactors 3, and two self-locking devices 6 are respectively installed under the two DC contactors 3, each DC The contactors 3 are equipped with auxiliary contacts 2 , and the intelligent controller 8 i...

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Abstract

A double circuit power supply switching system comprises a DC-DC power supply switching device and a controller thereof, and an AC-DC power supply switching device and a controller thereof. The power supply switching device adopts a contactor structure with a self-locking device, and contactors are connected through a mechanical interlocking device. As the switching system adopts the contactor structure with the self-locking device, two circuit power supplies can be frequently switched and the service life of the switching system reaches about one million times. In addition, when one phase of the power supply device is attracted, the other phase can be completely power-off, so the switching system saves energy and protects environment.

Description

Technical field: [0001] The invention relates to a power switching system, in particular to a dual-way power switching system. Background technique: [0002] The tower crane device of the container terminal needs frequent power switching between DC-DC and AC-DC. Therefore, the life and stability of the power switching system are very high. Generally, the life of the switching power supply is required to reach 100,000 times. At present, the power switching system using isolating switches or circuit breakers generally has a service life of no more than 5,000 times, which is far from meeting the needs. Invention content: [0003] Aiming at the shortcomings of the above-mentioned prior art, the present invention provides a dual power supply switching system using a contactor as an actuator. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a dual power supply switching system, including a DC-DC power switching device an...

Claims

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Application Information

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IPC IPC(8): H02J9/06H01H9/26
CPCY02B70/30Y04S20/20
Inventor 赵寿林
Owner 沈阳斯沃电器有限公司
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