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Corona Shield

A corona shielding and shielding device technology, applied in circuits, devices for coating liquid on surfaces, electrical components, etc., can solve problems such as errors

Inactive Publication Date: 2014-09-10
VOITH PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite the utmost care when installing the corona shield, mistakes are always possible due to the winding of the strips and the subsequent pouring of the resin

Method used

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Examples

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Embodiment Construction

[0020] figure 1 The view of is highly schematically showing a hydroelectric power plant 1 . The heart of the hydroelectric plant 1 is the supply system 2 , which conveys water from the upper water region (not shown here) to the water turbine 3 and discharges it via a schematically shown diffuser 4 to the lower water region, also not shown here. in the area. The water turbine 3 is here connected via a shaft 5 to a rotor 6 of an electrical device 7 to form a unit. The rotor 6 is driven by the water turbine 3 and rotates within the schematically shown stator 8 about a rotor axis 9 which, as in a hydroelectric plant 1 of this type, generally points in the direction of gravity g. The rotor 6 and the stator 8 together form an electrical device 7 that functions as a generator. It is used to generate electrical energy from the potential energy of water. It is also conceivable to use a pump turbine instead of the water turbine 3, which in the first state is similar to the water tur...

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PUM

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Abstract

The invention relates to a corona shield for an electrical conductor (13) in a rotating electric machine (7), comprising an outer corona shield (16) and a terminal corona shield (15) which is mounted adjacent to the outer corona shield (16), on a high-voltage insulation (14) of the electrical conductor (13), and also comprising a strip (18) that has a limited electrical conductivity, is arranged around the high-voltage insulation (14) of the electrical conductor (13), and is impregnated with a resin. The invention is characterized in that a paint (17) having a limited electrical conductivity is arranged at least between the high-voltage insulation (14) and the strip (18), in the transition zone between the outer corona shield (16) and the strip (18) of the terminal corona shield (15).

Description

technical field [0001] The invention relates to a corona shield of the similar type according to the preamble of claim 1 . Furthermore, the invention relates to a method for producing a corona shield of this type and an electrical device having a corona shield of this type. Background technique [0002] In rotating electrical installations or high-voltage electrical installations, electrical conductors with high-voltage insulation and corona shielding are generally known. A corresponding corona shielding device and a machine using such a corona shielding device are described, for example, in DE 102 27 226 A1. Corona shields, typically comprising so-called outer corona shields (AGS) and end corona shields (EGS), are arranged on high voltage insulation placed on the electrical conductors. The so-called outer corona shield is typically located in the region of the insulated electrical conductors which, in electrically rotating machines, are arranged in slots of the rotor or s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/40
CPCB05D7/00H01B17/44H02K3/40H01B3/422
Inventor 托马斯·希尔丁格卢德格尔·可丁马塞洛·杰克大席尔瓦若昂·菲瑞尼克德荣卡米拉·多斯·桑托斯·宫卡维
Owner VOITH PATENT GMBH
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