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High voltage hybridstation with opposite busbars and shielded cutoff and switching modules for same

A technology for switching modules and substations, which is applied to the installation of switchgear with metal casings, substations, non-enclosed substations, etc. Connecting, reducing the length of the substation, etc.

Inactive Publication Date: 2004-01-21
ALSTOM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hybrid substations of that type can reduce the length of feeders and thus the length of substations compared to conventional substations, but cannot significantly increase the number of exposed feeder bays installed in a given area
Also, when a module must be disconnected from the busbar group due to an accident on the module, that technique cannot directly interconnect two opposing feeders

Method used

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  • High voltage hybridstation with opposite busbars and shielded cutoff and switching modules for same
  • High voltage hybridstation with opposite busbars and shielded cutoff and switching modules for same
  • High voltage hybridstation with opposite busbars and shielded cutoff and switching modules for same

Examples

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Embodiment Construction

[0043] In Figure 1, a conventional AIS distribution station is equipped with two sets of bus bars 10 and two isolation switches 18 for each electric phase in the feeder open-air bay 11 or 12. When a specific bus bar 9 is used for transmission, each electric phase Each isolating switch can connect one of the feeders A or B to the same phase of a group of bus bars 10. The feeder line usually includes a series connection of AIS devices such as a circuit breaker 15, a current transformer 16, and a line grounding disconnect switch 17. The switch isolator 18 for a given feeder must be located below the two sets of busbars 10, as in figure 2 It can also be seen in, and the ground area they occupy is approximately equal to the width of the combination of the two sets of busbars. This means that the two opposing feeders A and B cannot be exactly side by side, and therefore the open-air gaps 11 and 12 of the feeders they occupy must be offset in the length direction, that is, laterally in ...

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Abstract

The invention concerns a high voltage polyphase so-called hybrid distributing station with single or double busbar set, comprising busbar connections (A, B, C, D) of air insulated lines (21, 22) and comprising shielded interruption and switching modules (1) each formed by a chamber (2) comprising for every current phase interruption and disconnect systems, an end disconnecting system (4A, 4B) being arranged at each end (13, 14) of a module. The invention is characterised in that the busbar connections are in opposite pairs facing each other, and two opposite busbar connections (A, B) are electrically connected for every current phase for a single module (1) when the interruption systems (3A, 3B, 3C) and the end disconnecting systems (4A, 4B) of said modules are closed, said end disconnecting systems being each connected to a busbar connection (A, B).

Description

Technical field [0001] The invention relates to a high-voltage power distribution substation. The electric substation is a hybrid type, which includes busbars and feeders using air insulation technology, and a metal cladding including a circuit breaker and isolation device in a metal cladding The break and switching module is used to interconnect the bus and the feeder. Background technique [0002] As a preliminary point, it is worth elaborating on the idea of ​​"hybrid" high-voltage substation because it is relatively new. Air insulation technology is represented by its first letter AIS (for air insulation system), and metal cladding technology is represented by its first letter GIS (air insulation system). The main desired purpose is to reduce the footprint of conventional substations (that is, full AIS substations), while retaining the advantages of AIS technology in terms of cost and convenience of component replacement, and GIS technology in terms of compact structure and p...

Claims

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Application Information

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IPC IPC(8): H02B13/02H02B5/06
CPCH02B5/06H02B1/22H02B5/00
Inventor J·马尔莫尼耶J-P·奥德朗
Owner ALSTOM TECH LTD
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