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Switching installation provided with an electrically insulating barrier

A technology of switchgear and electrical insulation layer, applied in the direction of switchgear, switchgear setting, electric switch, etc., can solve the problem of multi-work in assembly, and achieve the effect of good fixation and optimization of electric field distribution

Inactive Publication Date: 2005-08-10
EATON ELECTRIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, assembling the known switchgear requires more work

Method used

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  • Switching installation provided with an electrically insulating barrier
  • Switching installation provided with an electrically insulating barrier
  • Switching installation provided with an electrically insulating barrier

Examples

Experimental program
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Embodiment Construction

[0035] figure 1 A simplified cross-sectional view of an electrical switching device 5 for medium or higher voltages is shown, in which an electrical insulating layer 10 according to the invention is used. Said switching device 5 comprises a closed housing 30 made of metal, in which the components of the switching device 5 are housed. Install the shell on the fixing frame 34. In the example shown, the switching device 5 is used to make or break an electrical connection between a power supply line 35 connecting the cable connection 33 and one main line 15 in a three-phase mains system. The cable junction 33 is connected with a conductor to the bottom junction of the circuit breaker 12 , which is a vacuum circuit breaker, which is actuated by the drive lever 16 . In the switchgear 5, a circuit breaker 12 is used for switching on or off an electric current. In the example shown, the other link of the circuit breaker 12 is connected by a sliding conductive link to one end of the...

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PUM

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Abstract

A switching installation (5) having a circuit breaker (12), which is connected to a cable connection (33), and optionally a disconnector (14) for making or breaking a conductive connection between the cable connection (33) and a rail system (15), and an electrically insulating barrier (10). The electrically insulating barrier (10) surrounds at least the parts which are under electric voltage in operation from the circuit breaker (12) to the rail system (15), including a branch (18) leading to a rail (15) of the rail system, separately for each phase of the switching installation (5). Furthermore, inside the electrically insulating barrier (10) the switching installation may be provided with field-control means and / or voltage-sealing means (22, 25, 37).

Description

technical field [0001] The present invention relates to a switchgear, especially suitable for voltages higher than 1000V, which switchgear comprises: a circuit breaker for connecting a cable junction, and may also include a circuit breaker for switching on and off between the cable junction and a rail system. A disconnector for opening electrical connections, and an electrical insulating layer for shielding components of switching devices operating under voltage. Background technique [0002] Since most switchgear is a three-phase design, each functional unit (also referred to as a field) also has three sets of each of the above elements, which are physically and electrically isolated from each other for each phase. [0003] Furthermore, the phases of such switching devices are arranged together as a solid body in a closed switch box, wherein, due to the large potential differences, a certain distance must be kept between the individual voltage-carrying parts of the switch b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B3/00H01H31/00H01H33/02H01H33/66H02B1/32H02B13/02H02B13/065
CPCH01H33/6661H01H2033/6623H01H2033/566H01H31/003H01H2009/0292H01H33/022H02B13/02
Inventor A·J·W·拉默斯
Owner EATON ELECTRIC INC