Container building block type local bus protection apparatus

A busbar protection and building block technology, which is applied in the direction of emergency protection circuit devices, circuit devices, electrical components, etc., can solve the problem of a large busbar protection device system, and achieve the effects of being free from electromagnetic interference, reducing interference, and facilitating maintenance

Pending Publication Date: 2018-07-31
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There are many outgoing branches connected to the bus. In extreme cases, 24 branches are connected to the 220kV bus. If each branch is equipped with a slave device and then a master device, the bus protection device system will appear very large

Method used

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  • Container building block type local bus protection apparatus
  • Container building block type local bus protection apparatus
  • Container building block type local bus protection apparatus

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Embodiment Construction

[0036] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] Such as Figure 1-4As shown, a container building block type in-situ busbar protection device includes a host device 1 and three slave devices 2, and the slave devices 2 are assembled with corresponding components for connecting 8 branch circuits in the form of containers. Device 1 and slave device 2 are connected by building blocks. Both the main device 1 and slave device 2 are connected by aerial plugs. The voltage input of the bus voltage and the collection of the current, voltage and switch values ​​of the five branches, as well as the trip outlets connected to the branches, and complete the functions of branch electrical quantity collection, differential current calculation, and braking current calculation function, analog calculation function, remote operation interface function, protection function logic, man-machine i...

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Abstract

The invention discloses a container building block type local bus protection apparatus, and relates to the field of a local protection apparatus of a power system. The current local bus protection apparatus is high in number, large in space occupation, complex in structure and high in cost. The container building block type local bus protection apparatus comprises a host machine apparatus and a plurality of sub machine apparatuses; corresponding elements of multiple branches are contained in the sub machine apparatuses in a container form; the host machine apparatus and the sub machine apparatuses are connected in a building block form; the inlet and outlet interfaces of the host machine apparatus and the sub machine apparatuses both adopt aviation plugs; the host machine apparatus is responsible for sampling of magnitude of current, magnitude of voltage and switching value of a part of branches, and forming of a trip outlet of the connected branches; and the sub machine apparatuses are expansion of the host machine apparatus, and are responsible for sampling of magnitude of current, magnitude of voltage and switching value of the corresponding branches, and forming of a trip out function the corresponding branches. According to the technical scheme, the container building block type local bus protection apparatus is simple in structure, convenient to install, small in space occupation and high in protection capability by adopting the navigation plugs in the outlet and inlet interfaces.

Description

technical field [0001] The invention relates to the field of on-site protection devices for power systems, in particular to a container building block type on-site bus protection device. Background technique [0002] According to the substation construction plan of the State Grid Corporation of China and the professional management requirements of the national investigation center for the secondary protection and control equipment of smart substations, the new substations built in 2016 and later will be completely carried out in accordance with the smart substation model, and more than 50% of them will adopt the new generation smart substation model, of which The protection and control devices of 220kV and below need to realize localization, miniaturization and non-protection installation mode. [0003] The localization of the relay protection device refers to the installation of the relay protection device close to the primary equipment. The promotion of the local protectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/22H02J13/00
CPCH02H7/22H02J13/00019Y04S20/14Y04S40/126Y02B90/20
Inventor 王德林周华吕鹏飞樊占峰黄继东郭建勇王悦潘武略徐凯吴佳毅金全仁王智勇倪传坤杨智德肖锋胡沙沙
Owner STATE GRID CORP OF CHINA
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