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Motor insulation system for nuclear power units

A technology for insulation systems and nuclear power units, applied in the shape/style/structure, coating, etc. of winding insulation, which can solve the problems of restricting the insulation performance of nuclear power units, low long-term use temperature, high and low temperature thermal shock resistance, etc. , to achieve the effect of good nuclear radiation resistance performance

Active Publication Date: 2015-11-11
蓬莱市特种绝缘材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no high-temperature-resistant insulation system for nuclear power units such as nuclear power main pump motors on the market. The nuclear radiation resistance and high-low temperature thermal shock resistance of existing nuclear power units need to be improved, and the long-term use temperature is low and heat resistance is poor; There are deficiencies such as high cost, poor manufacturability, and low reliability, which restrict the improvement of the insulation performance of military, aerospace, and nuclear power units

Method used

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  • Motor insulation system for nuclear power units
  • Motor insulation system for nuclear power units

Examples

Experimental program
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Effect test

Embodiment 1

[0022] The motor insulation system for nuclear power units includes an electromagnetic coil wound by high-temperature electromagnetic wire resistant to nuclear radiation, slot insulation, slot wedges, an insulating sleeve sleeved on the winding outlet end of the electromagnetic coil, and binding and fixing wires. Binding straps, lead wires welded to the outlet ends of the windings, and the overall heat-conducting nuclear radiation-resistant high-temperature insulating impregnated varnish are made. The nuclear radiation-resistant high-temperature electromagnetic wires include enameled copper round wires and enamelled copper round The insulation layer around the wire, in which the enamelled copper round wire is an aromatic high-temperature resistant polyimide enameled wire with a grade 2 paint film thickness specified in Table 1 of the national standard GB / T6109.1-2008; the insulation layer is wrapped by double glass wire The external coating is composed of boric acid modified hi...

Embodiment 2

[0037] The structure and preparation method of the motor insulation system for nuclear power units are basically the same as in Example 1, except that the winding wire is a nuclear radiation-resistant high-temperature electromagnetic wire, which includes an enameled copper round wire and an enameled copper wire wrapped around the enameled wire. Insulation layer, enamelled round copper wire is an aromatic high-temperature resistant polyimide enameled wire with grade 2 paint film thickness specified in Table 1 of the national standard GB / T6109.1-2008, and the insulation layer is coated with titanic acid after being wrapped by double glass wire It is composed of butyl ester modified high temperature resistant silicone resin. The model coil goes through 60 After the static irradiation test of 1000KGy dose of Co-γ rays, the paint film is smooth, without bubbles, and the color changes little. The insulation resistance of the winding to the ground is remotely measured by a 500v megge...

Embodiment 3

[0039] The structure and preparation method of the motor insulation system for nuclear power units are basically the same as in Example 1, except that the groove insulation is TufQUIN-110 heat-resistant insulating paper polyimide film soft composite material (THT). The model coil goes through 60 After the static irradiation test of 1000KGy dose of Co-γ rays, the paint film is smooth, without bubbles, and the color changes little. The insulation resistance of the winding to the ground is remotely measured by a 500v megger and is greater than 500 megohms, and it is tested by a power frequency breakdown voltage tester. The winding-to-ground withstand voltage test has passed the 1760V, 1min withstand voltage test.

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Abstract

The invention relates to a motor insulation system for nuclear power units, comprising an electromagnetic coil wound with a nuclear radiation and high temperature-resistant electromagnetic wire, a slot insulation, a slot wedge, an insulation casing, a binding tape, a lead wire, and nuclear radiation and high temperature-resistant insulation impregnating varnish integrally impregnating for heat conduction. The motor insulation system for nuclear power units of the invention has good high temperature-resistant and nuclear radiation-resistant performances, can be applied to war industry, aviation and aerospace, nuclear power motors and other insulation technical fields, and is particularly suitable to be used as a motor insulation system for nuclear power main pumps with the rated voltage being 1140V and below.

Description

technical field [0001] The invention belongs to the technical field of motor insulation, and in particular relates to a motor insulation system for a nuclear power unit. Background technique [0002] The insulation system is a combination of various insulating materials that match each other to achieve a certain temperature resistance level. The materials that usually make up the insulation system are: enameled wire, insulating varnish, skeleton, insulating tape, insulating conduit, packaging material, etc. The insulation system is widely used in motors, transformers and electronic components. The purpose of motor insulation is to make the current flow in the stator and rotor coils follow the prescribed path, and it also has the function of fixed support. The motor insulation system not only directly affects the technical and economic indicators of the motor, but also affects the operational reliability and life of the motor. [0003] Against the backdrop of the national p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/32H02K3/38C09D179/08C09D183/04C09D5/25C08G73/10C08G77/06
Inventor 刘壮业袁世臻贾仪兵刘来江胡彩霞
Owner 蓬莱市特种绝缘材料厂
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