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High temperature and radiation resistant electromagnetic wires for nuclear power units

A nuclear power unit, high-temperature-resistant technology, applied in the direction of circuits, insulating cables, electrical components, etc., can solve the problems that restrict the development and application of nuclear power units, rely on imports, etc., and achieve excellent corona resistance and good insulation.

Inactive Publication Date: 2011-12-14
江苏豪威富电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Furthermore, it was learned from the development and design department of nuclear power units that since the technical indicators of high temperature resistance, radiation resistance and corona resistance of the electromagnetic wires currently manufactured in my country are still not comparable to those of foreign products, they are still in the stage of relying heavily on imports, and To a certain extent, it restricts the pace of development and application of nuclear power units in my country

Method used

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  • High temperature and radiation resistant electromagnetic wires for nuclear power units
  • High temperature and radiation resistant electromagnetic wires for nuclear power units
  • High temperature and radiation resistant electromagnetic wires for nuclear power units

Examples

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Embodiment 1

[0021] please see figure 1 , the nominal diameter of the nickel coating 11 with ideal high electrical conductivity, heat resistance, high frequency resistance, oxidation resistance and corrosion resistance is given as 1.41 The conductor 1 is ㎜, and the conductor 1 is wrapped with an insulating layer 2. The insulating layer 2 includes a glass fiber cloth reinforced silicone mica tape layer 21 with a nominal thickness of 0.07㎜ and which can be purchased from commercial channels. A layer of glass fiber layer 22 wrapped outside the glass fiber cloth reinforced silicone mica tape layer 21, wherein: the glass fiber cloth reinforced silicone mica tape layer 21 is wrapped around the conductor 1 in a lapping manner, and the lapping rate is 50%, and the specification of the glass fiber constituting the glass fiber layer 22 (that is, the number of counts commonly referred to in the industry) is 360 (360S). After wrapping the glass fiber layer 22 around the glass fiber cloth reinforce...

Embodiment 2

[0024] please see figure 2 , the conductor 1 whose material is copper and whose cross-sectional shape is rectangular is plated with a nickel-plated layer 11 with the characteristics described in Example 1, with a nominal thickness of 5.0mm and a nominal width of 16mm, is given. The copper conductor 1 is wrapped with an insulating layer 2, and the insulating layer 2 includes a glass fiber cloth reinforced silicone mica tape layer 21 with a nominal thickness of 0.13 mm and a glass fiber cloth reinforced silicone mica tape layer 21 wrapped around it. For the outer two layers of glass fiber layers 22, the specification of the glass fiber constituting the first layer of glass fiber layer 22 is 80 (80S), while the specification of the second layer of glass fiber is 160 (160S), and the glass fiber cloth is reinforced organically. The lapping ratio of the silicon mica tape layer 21 is 30%. After the glass fiber is wrapped around the glass fiber cloth reinforced silicone mica tape ...

Embodiment 3

[0026] The diagram is omitted, only the nominal diameter of the conductor 1 is changed to 5.0mm, the nominal thickness of the glass fiber cloth reinforced silicone mica tape layer 21 is changed to 0.09mm, the lapping rate is changed to 66%, and the glass fiber layer 22 is changed to One layer and change the specifications to 250 pieces (250S), to obtain a magnet wire with an insulating layer 2 thickness of 0.60mm~0.70mm, and the rest are the same as the description of embodiment 1.

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Abstract

The invention relates to a high-temperature-resistant and radiation-resistant electromagnetic wire for a nuclear power unit, which belongs to the technical field of nuclear power unit accessories. It includes a conductor and an insulating layer wrapped around the conductor. The conductor is a nickel-plated copper conductor with nickel plating on the surface, and the insulating layer includes a glass fiber cloth reinforced silicone mica tape wrapped around the conductor. layer and the glass fiber layer wrapped around the glass fiber cloth reinforced silicone mica tape layer. Advantages: It has ideal high temperature resistance characteristics and can work stably for a long time at a high temperature of 260°C; after the radiation dose of г-rays is 5×10 5 GY, the pressure resistance test can not be reduced; it has excellent Corona resistance characteristics, square wave pulse test voltage repetition frequency 20KHz, pulse peak voltage ±5000V, pulse voltage rise rate not less than 2000V / μs, temperature 120°C, corona damage resistance life not less than 100 hours; good insulation Sex, the breakdown voltage is above 3800V.

Description

technical field [0001] The invention belongs to the technical field of nuclear power unit accessories, and in particular relates to a high-temperature-resistant and radiation-resistant electromagnetic wire for a nuclear power unit. Background technique [0002] As is well known in the industry, the motor coil of a nuclear power unit is composed of electromagnetic wires. It is an important part of a nuclear power unit and is even called a heart component. Therefore, the technical requirements for electromagnetic wires are extremely strict, mainly reflected in The following two aspects: First, it is required to have excellent high temperature resistance characteristics, and be able to work stably for a long time at a specific high temperature; second, it is radiation resistant to ensure excellent voltage resistance performance. [0003] In the published Chinese patent documents such as CN2290104Y (high temperature resistant, fluorinated electromagnetic wire), CN2452105Y (doubl...

Claims

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Application Information

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IPC IPC(8): H01B7/02H01B1/02
Inventor 秦宇
Owner 江苏豪威富电气股份有限公司