Intelligent flexible power supply switching device

A power switching and flexible technology, applied in the direction of circuit devices, emergency power arrangements, electrical components, etc., can solve the problems of superior power supply outage and load inoperability

Pending Publication Date: 2021-01-12
HUAIZHE COAL & ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the upper-level power supply of a single power supply load needs to be shut down, but the load cannot be shut down, and proposes an intelligent flexible power switching device; After the power supply is overhauled, it can also realize uninterrupted switching to the original power supply

Method used

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  • Intelligent flexible power supply switching device

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Embodiment Construction

[0020] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0021] see figure 1 As shown, an intelligent flexible power switching device includes a rectifier D1, an inverter M1, a static switch K5, a static switch K6, a synchronization device S1, a main control board Z1, a high-power resistor R1, a contactor K7, a fuse F1, Isolation transformer Y1, isolation transformer Y2, battery pack B1, isolation diode D2, DC switch K4, standby power switch K3 and standby power switch K2;

[0022] The rectifier D1 and the inverter M1 are used to rectify and invert the backup AC power supply, an...

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Abstract

The invention discloses an intelligent flexible power supply switching device, which solves the problem that a superior power supply of a single power supply load needs to be shut down and the load cannot be shut down, and comprises a rectifier D1, an inverter M1, a high-power resistor R1, a storage battery pack B1, an isolation diode D2, a direct-current switch K4, a standby power supply switch K3 and a to-be-connected power supply back-switching switch K2, according to the invention, uninterrupted transfer of an alternating current load can be realized, after maintenance of an original loadpower supply is completed, uninterrupted switching to the original power supply can be realized, the equipment has a synchronous capture function, impact current can be ensured not to be generated during switching, and meanwhile, in order to avoid uncertainty of an error outlet of the device and closing time of a circuit breaker, the high-power resistor is arranged, so that even if the three elements do not meet the requirements in the same period during switching, the operation load is not influenced, and the situation that the switching power supply is reversely sent to the system to cause asuperior power supply tripping event is avoided.

Description

technical field [0001] The invention relates to the technical field of power switching devices, in particular to an intelligent flexible power switching device. Background technique [0002] The AC power supply of important loads in power plants is generally taken to the security section or UPS to ensure the reliability of the power supply. Due to the relatively stable power supply during normal operation, there will generally be no power outages for equipment. If it is necessary to cut off the power supply of the equipment in the event of maintenance, abnormal movement, technical transformation, etc. of this section of the busbar, the power supply operation will be performed after the busbar is overhauled. Because some loads do not have the dual power switching function, the maintenance work cannot be normal. development, affecting the safety and reliability of equipment operation. At the same time, there are also loads that are powered by dual power supply switching. Each...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/062Y02B70/30Y04S20/20
Inventor 杨长存杨洪涛冯银廷曹小燕梁东方张茂兵裴丽秋王彬琛
Owner HUAIZHE COAL & ELECTRIC CO LTD
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