110kv/220kv voltage level composite apparatus and application thereof

A technology of combining electrical appliances and voltage levels, applied in electrical components, busbar/circuit layout, switchgear, etc., can solve the problems of short-term power failure of the main busbar, loss of the main busbar, inconvenient operation and use, and high equipment investment, reducing investment, The effect of reducing equipment cost and convenient maintenance

Active Publication Date: 2010-03-03
STATE GRID CORP OF CHINA +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as far as the HGIS solution is concerned, it inherits the advantages of GIS - high operational reliability, small footprint, and also has the advantages of AIS - expansion is more convenient, but the investment in equipment is stil...

Method used

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  • 110kv/220kv voltage level composite apparatus and application thereof
  • 110kv/220kv voltage level composite apparatus and application thereof
  • 110kv/220kv voltage level composite apparatus and application thereof

Examples

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Embodiment Construction

[0039] Best practice:

[0040] Refer to the attached image 3 , 110kV / 220kV voltage level combined electrical appliances, including circuit breaker CB, transformer CT and outgoing isolation switch DS, transformer CT is a current transformer, there are two groups, including the first current transformer CT1 and the second current transformer CT2 ; One end of the outgoing isolating switch DS is connected to the outgoing bushing BSG1, and the other end is connected to the first current transformer CT1; the two sets of current transformers are placed on both sides of the circuit breaker CB and are electrically connected to the circuit breaker CB; the second current transformer CT2 Connect the bus side bushing BSG2; and use sulfur hexafluoride (SF 6 ) gas is an insulating medium, and the outgoing disconnector DS, transformer CT and circuit breaker CB of electrical connection are enclosed in SF 6 In the insulating gas chamber, the bus disconnector uses air as the insulating medium...

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PUM

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Abstract

The invention relates to a composite apparatus, in particular to a 110kV/220kV voltage level composite apparatus and an application thereof. The composite apparatus is an innovation on the basis of original HGIS, thus being called XHGIS for short. The invention is characterized by providing a novel composite apparatus without a bus isolating switch, and application thereof in power distribution units, and being capable of designing a novel power distribution unit which has convenient installation, extension and operation; the whole technical scheme has less occupation area, can fully utilize the space under the bus, and has the occupation area which is reduced by 30 to 40 percent compared with the typically designed outdoor AIS scheme; the invention has less investment compared with that of HGIS, and the comprehensive investment cost is not in the bad situation any more compared with the AIS scheme; and simultaneously, the invention is also characterized by no need of power off of thebus when a breaker is overhauled, no influence on bus operation and higher reliability, thus not only bringing the advantages of the SF6 composite apparatus into full play, but also overcoming the disadvantages thereof in overhauling and extension.

Description

technical field [0001] The invention relates to a composite electrical appliance, in particular to a 110kV / 220kV voltage grade composite electrical appliance and its application. The combined electrical appliance of the present invention is an innovation based on the original HGIS, so it is abbreviated as XHGIS, where "X" means "new", which means new and innovative. Background technique [0002] Relevant definitions involved in the present invention: [0003] AIS: refers to the power distribution device in which the single equipment is arranged with air as the insulating medium. It is a combination of single equipment including circuit breakers, isolating switches, grounding switches, bus bars, transformers, arresters, etc. It is a conventional open type. Switchgear combinations. [0004] GIS (Gas Insulated Switchgear): refers to sulfur hexafluoride (SF 6 ) gas as an insulating medium, a device assembly that combines multiple devices and busbars, namely SF 6 Fully enclos...

Claims

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Application Information

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IPC IPC(8): H02B13/035H02B1/20
Inventor 罗明览姜文瑾张岩罗湘梅
Owner STATE GRID CORP OF CHINA
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