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Protection system for an electrical machine

A technology for protection systems and electrical appliances, applied in electrical components, electromechanical devices, electrical components, etc., to solve problems such as explosions, troublesome cleaning, etc.

Inactive Publication Date: 2016-12-14
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in the case of dust explosion-proof machines, dust in the machine is not permissible, because otherwise there would be an explosion risk
Therefore, the machines have hitherto had to be cleaned in a laborious manner before being put into operation again

Method used

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  • Protection system for an electrical machine
  • Protection system for an electrical machine
  • Protection system for an electrical machine

Examples

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Embodiment Construction

[0050] figure 1 A first embodiment of the protection system according to the invention is shown. The protection system is mounted on the electric machine here, and has a housing 11 which delimits an interior space 12 relative to an exterior space 13 of the electric machine.

[0051] The protective system has a filter 5 impermeable to dust particles 14 , a valve 4 and a first connecting line 3 , via which the inner chamber 12 can be connected to the outer chamber 13 . In this case, the valve 4 and the first connecting line 3 are designed in such a way that the first connecting line 3 is blocked when the valve 4 is closed and the first gaseous medium flows from the outer space 13 to the open valve 4 . Intrusion into the inner cavity 12 is possible in this case. The filter 5 is arranged in such a way that the first gaseous medium penetrating from the outer space 13 into the inner space 12 via the first connecting line 3 can be filtered.

[0052] In particular, the filter 5 is...

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Abstract

The invention relates to a protection system for an electrical machine, wherein the electrical machine has a housing (11) which delimits an internal space (12) in the electrical machine from an external space (13) which surrounds the electrical machine. The invention further relates to an electrical machine which has a housing (11), which delimits an internal space (12) in the electrical machine from an external space (13) which surrounds the electrical machine, and a protection system of this kind. In order to provide a protection system and, respectively, an electrical machine with improved protection of the electrical machine, in particular with improved explosion protection, it is proposed that the protection system has a first connecting line (3), by means of which the internal space (12) can be connected to the external space (13), a valve (4) and a filter (5) which is impermeable to dust (14), wherein the valve (4) and the first connecting line (3) are designed in such a way that the first connecting line (3) is impassable when the valve (4) is closed, wherein the valve (4) and the first connecting line (3) are designed in such a way that a first gaseous medium can enter the internal space (12) from the external space (13) when the valve (4) is open, wherein the filter (5) is arranged in such a way that the first gaseous medium which enters the internal space (12) from the external space (13) through the first connecting line (3) can be filtered.

Description

technical field [0001] The invention relates to a protective system for an electric machine, wherein the electric machine has a housing which delimits an interior of the electric machine relative to an exterior surrounding the electric machine. Furthermore, the invention relates to an electric machine having a housing which delimits an interior space of the electric machine relative to an exterior space surrounding the electric machine and having such a protection system. Background technique [0002] Such protective systems or such electrical machines are intended for use in environments with dusty or explosive media. If electrical machines, and in particular high-voltage electrical machines, are operated in explosive media, the penetration of ignitable materials into the interior of the machine must be prevented. [0003] If the machine is switched off after it has been in operation, it also has residual heat, so that when the machine cools down, a low pressure is created...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/10H02K5/136
CPCH02K5/10H02K5/136H02K7/1823H02K2205/09H02K11/20
Inventor 克里斯蒂安-约尔格·埃克特勒内·瑟利
Owner SIEMENS AG
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