Power supply switching device of safety guarantee system

A system power supply and switching device technology, applied in the direction of circuit devices, emergency power supply arrangements, electrical components, etc., can solve the problems of high cost, heavy maintenance workload, etc., to reduce the chance of failure, low cost, and high stability Effect

Inactive Publication Date: 2015-02-18
郑照
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the installation of the synchronous device is expensive and requires a lot of maintenance work.

Method used

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  • Power supply switching device of safety guarantee system

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] refer to figure 1 , the specific embodiment adopts the following technical solutions: a safety guarantee system power switching device, including diesel generator G, BFA section bus low-voltage relay 1, BFB section bus low-voltage relay 2, BMA section bus low-voltage relay 3 and MCC Section BMB control system 4 and MCC section BMB control system 4 are respectively connected to switch BFA06B, switch BFB06B, and switch BMA02A through switch BMB01A, switch BMB01B, and switch BMB09A, and switch BFA06B, switch BFB06B, and switch BMA02A are respectively connected to BFA section bus low-voltage relay 1 , BFB section bus low-voltage relay 2, BMA s...

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PUM

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Abstract

The invention discloses a power supply switching device of a safety guarantee system. The power supply switching device comprises a diesel generator, a BFA section busbar low voltage relay, a BFB section busbar low voltage relay, a BMA section busbar low voltage relay and an MCC section BMB control system, wherein the MCC section BMB control system is respectively connected with a switch BFA06B, a switch BFB06B and a switch BMA02A through a switch BMB01A, a switch BMB01B and a switch BMB09A, and the switches BFA06B, the switch BFB06B and the switch BMA02A are respectively connected with the BFA section busbar low voltage relay, the BFB section busbar low voltage relay and the BMA section busbar low voltage relay. According to the power supply switching device provided by the invention, even if devices do not need to be installed in a synchronizing way, the quick switchover between a working power supply and a reserve power supply can be realized to ensure the normal power supply of an important load.

Description

technical field [0001] The invention relates to a power switching system for a plant power security system based on the logic function of a control system, in particular to a power switching device for a security system. Background technique [0002] The power safety section of the power plant provides safety power for the oil system of the steam turbine and the oil system of important auxiliary machines, so as to ensure that the load of the oil system will not be cut off in the event of an accident in which the plant power is lost. In order to ensure the normal switching of the power supply of the security section, it is generally necessary to install a synchronous device to realize the rapid switching of the working power supply and the backup power supply. And installing the synchronous device, the cost is high, and the maintenance workload is heavy. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is ...

Claims

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Application Information

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IPC IPC(8): H02J9/06
Inventor 郑照
Owner 郑照
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