CN107068340A - 一种油浸式变压器低压线圈及其绕制方法 - Google Patents

一种油浸式变压器低压线圈及其绕制方法 Download PDF

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CN107068340A
CN107068340A CN201710333709.7A CN201710333709A CN107068340A CN 107068340 A CN107068340 A CN 107068340A CN 201710333709 A CN201710333709 A CN 201710333709A CN 107068340 A CN107068340 A CN 107068340A
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高稳
黄汝星
宋述稳
魏建鲁
赵金表
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/122—Insulating between turns or between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/323—Insulation between winding turns, between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating

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Abstract

本发明属于油浸式变压器领域，涉及一种油浸式变压器低压线圈及其绕制方法。（1）：在硬纸筒上均匀刷好浸渍漆；（2）：在刷好浸渍漆的硬纸筒上，起始端低压导线与端绝缘同时绕制；每一层低压导线快结束时加上端绝缘同时绕制，直至这层结束；换层时低压导线起始部分加端绝缘与低压导线同时绕制；（3）：在绕好的一层导线表面均匀刷好浸渍漆，然后绕下一层导线，每绕好一层低压导线都要在其表面刷浸渍漆，依次顺序直至线圈绕好；（4）：低压导线绕制至加油道。本发明有效满足现阶段对电网稳定性、用户用电质量及变压器运行中低压线路突发故障的运行性能稳定要求；延长变压器寿命，提高变压器运行时的各相性能。

Description

一种油浸式变压器低压线圈及其绕制方法
技术领域
本发明属于油浸式变压器领域，涉及一种油浸式变压器低压线圈及其绕制方法。
背景技术
现阶段，因低压线圈电流大，变压器运行中低压线路突发故障，必引起低压线圈电流急剧增大，致使低压线圈柱向应力加大，从而使低压线圈变形、绝缘损毁致使变压器损毁。变压器采用传统工艺绕制线圈，已经无法满足现阶段对电网稳定性、用户用电质量及变压器运行中低压线路突发故障的运行性能稳定要求。为满足供电质量特研发一种变压器线圈的绕制方法。
发明内容
本发明为弥补现有技术的不足，提供一种结构牢固、使用寿命长、操作方便的油浸式变压器低压线圈及其绕制方法。
本发明是通过如下技术方法实现的：
本发明的油浸式变压器低压线圈绕制方法，其特征在于：包括以下步骤：
（1）：低压线圈绕前选择合适的加工好的硬纸筒，在硬纸筒上均匀刷好浸渍漆；
（2）：在刷好浸渍漆的硬纸筒上，起始端低压导线与端绝缘同时绕制；每一层低压导线快结束时加上端绝缘同时绕制，直至这层结束；换层时低压导线起始部分加端绝缘与低压导线同时绕制；
（3）：在绕好的一层导线表面均匀刷好浸渍漆，然后绕下一层导线，每绕好一层低压导线都要在其表面刷浸渍漆，依次顺序直至线圈绕好；
（4）：低压导线绕制至加油道层时，在这一层绕好的低压导线表面均匀刷浸渍漆后加一层层间绝缘纸，在加好的这一层层间绝缘纸表面均匀刷好浸渍漆后覆盖上加工好的油道成型件（即油道撑条），加好后的油道成型件表面均匀刷浸渍漆，刷好漆的油道表面再加一层层间绝缘纸，油道表面加的这一层层间绝缘纸表面均匀刷浸渍漆，然后先加端绝缘，再把低压导线绕制在这一层层间绝缘纸上直至导线末端加端绝缘换层；
（5）：绕好的低压线圈最外层加包0.5mm厚的绝缘硬纸筒；绝缘硬纸筒外面缠好自粘帯。
步骤（1）中：浸渍漆的型号为1038绝缘树脂漆。
步骤（4）中：低压导线绕制至加油道层时，即线圈厚度的二分之一时。
本发明的绕制方法绕制而成的油浸式变压器低压线圈，其特征在于：它是由低压导线绕制而成的多层结构，最内层导线绕在绝缘硬纸筒上，该绝缘硬纸筒外侧刷有浸渍漆层，每一层导线的起始部分和末尾部分包有端绝缘，每一层导线的外表面刷有浸渍漆层；线圈内部安装有油道撑条，相邻两根油道撑条之间构成油道，油道撑条内侧与导线之间垫有层间绝缘纸，该层间绝缘纸的外侧刷有浸渍漆层，油道撑条外侧刷有浸渍漆层，油道撑条外侧与导线之间也垫有层间绝缘纸，该层间绝缘纸的外侧刷有浸渍漆层；低压线圈最外层加包0.5mm厚的绝缘硬纸筒；绝缘硬纸筒外面缠有自粘帯。
低压导线的引线出头设置在线圈的内孔处。
在线圈厚度的二分之一处安装油道撑条。
本发明的有益效果是：绕制方法操作简单，延长变压器寿命，提高变压器运行中的各项性能。满足现阶段对电网稳定性、用户用电质量及变压器运行中低压线路突发故障的运行性能稳定要求。
附图说明
图1为本发明的主视图示意图，图2为图1的俯视图示意图。
图中，1引线出头，2端绝缘，3低压导线，4层间绝缘纸，5漆涂层，6绝缘纸筒，7油道，8油道撑条。
具体实施方式
附图为本发明的一种具体实施例。
本发明的油浸式变压器低压线圈绕制方法，其特征在于：包括以下步骤：
（1）：低压线圈绕前选择合适的加工好的硬纸筒，在硬纸筒上均匀刷好浸渍漆；
（2）：在刷好浸渍漆的硬纸筒上，起始端低压导线与端绝缘同时绕制；每一层低压导线快结束时加上端绝缘同时绕制，直至这层结束；换层时低压导线起始部分加端绝缘与低压导线同时绕制；
（3）：在绕好的一层导线表面均匀刷好浸渍漆，然后绕下一层导线，每绕好一层低压导线都要在其表面刷浸渍漆，依次顺序直至线圈绕好；
（4）：低压导线绕制至加油道层时，在这一层绕好的低压导线表面均匀刷浸渍漆后加一层层间绝缘纸，在加好的这一层层间绝缘纸表面均匀刷好浸渍漆后覆盖上加工好的油道成型件（即油道撑条），加好后的油道成型件表面均匀刷浸渍漆，刷好漆的油道表面再加一层层间绝缘纸，油道表面加的这一层层间绝缘纸表面均匀刷浸渍漆，然后先加端绝缘，再把低压导线绕制在这一层层间绝缘纸上直至导线末端加端绝缘换层；
（5）：绕好的低压线圈最外层加包0.5mm厚的绝缘硬纸筒；绝缘硬纸筒外面缠好自粘帯。
步骤（1）中：浸渍漆的型号为1038绝缘树脂漆。
步骤（4）中：低压导线绕制至加油道层时，即线圈厚度的二分之一时。
本发明的绕制方法绕制而成的油浸式变压器低压线圈，它是由低压导线3绕制而成的多层结构，最内层导线绕在绝缘硬纸筒6上，该绝缘硬纸筒外侧刷有浸渍漆层，每一层导线的起始部分和末尾部分包有端绝缘2，每一层导线的外表面刷有浸渍漆层；线圈内部安装有油道撑条8，相邻两根油道撑条之间构成油道7，油道撑条内侧与导线之间垫有层间绝缘纸4，该层间绝缘纸的外侧刷有浸渍漆层5，油道撑条外侧刷有浸渍漆层，油道撑条外侧与导线之间也垫有层间绝缘纸4，该层间绝缘纸的外侧刷有浸渍漆层；低压线圈最外层加包0.5mm厚的绝缘硬纸筒；绝缘硬纸筒外面缠有自粘帯。
低压导线的引线出头1设置在线圈的内孔处。
在线圈厚度的二分之一处安装油道撑条8。

Claims (8)

1.一种油浸式变压器低压线圈绕制方法，其特征在于：包括以下步骤：
（1）：低压线圈绕前选择合适的硬纸筒，在硬纸筒上均匀刷好浸渍漆；
（2）：在刷好浸渍漆的硬纸筒上绕制低压导线，每一层低压导线的起始端和末端分别加上端绝缘绕制；换另一层时，低压导线的起始端和末端也分别加端绝缘与低压导线同时绕制；以此方法绕制好低压线圈；
（3）：在绕好的一层导线表面均匀刷好浸渍漆，然后绕下一层导线，每绕好一层低压导线都要在其表面刷浸渍漆，依次顺序直至线圈绕好；
（4）：低压导线绕制至加油道层时，在这一层绕好的低压导线表面均匀刷浸渍漆后加层间绝缘纸，在加好的层间绝缘纸表面均匀刷好浸渍漆后覆盖上加工好的油道成型件，加好后的油道成型件表面均匀刷浸渍漆，刷好漆的油道成型件表面再加层间绝缘纸，油道表面加的层间绝缘纸表面均匀刷浸渍漆，然后把低压导线绕制在这一层层间绝缘纸上，这层低压导线的始端加端绝缘，绕至导线末端加端绝缘换层；
（5）：绕好的低压线圈最外层加包绝缘硬纸筒；绝缘硬纸筒外面缠好自粘帯。
2.根据权利要求1所述的油浸式变压器低压线圈绕制方法，其特征在于：步骤（1）中：浸渍漆的型号为1038绝缘树脂漆。
3.根据权利要求1所述的油浸式变压器低压线圈绕制方法，其特征在于：步骤（4）中：低压导线绕制至加油道层时，即线圈厚度的二分之一时。
4.根据权利要求1所述的油浸式变压器低压线圈绕制方法，其特征在于：步骤（5）中：绕好的低压线圈最外层加包0.5mm厚的绝缘硬纸筒。
5.一种权利要求1所述的绕制方法绕制而成的油浸式变压器低压线圈，其特征在于：它是由低压导线（3）绕制而成的多层结构，最内层导线绕在绝缘硬纸筒（6）上，该绝缘硬纸筒外侧刷有浸渍漆层，每一层导线的起始部分和末尾部分包有端绝缘（2），每一层导线的外表面刷有浸渍漆层；线圈内部安装有油道撑条（8），相邻两根油道撑条之间构成油道（7），油道撑条内侧与导线之间垫有层间绝缘纸（4），该层间绝缘纸的外侧刷有浸渍漆层（5），油道撑条外侧刷有浸渍漆层，油道撑条外侧与导线之间也垫有层间绝缘纸（4），该层间绝缘纸的外侧刷有浸渍漆层；低压线圈最外层加包绝缘硬纸筒；绝缘硬纸筒外面缠有自粘帯。
6.根据权利要求4所述的油浸式变压器低压线圈，其特征在于：低压导线的引线出头（1）设置在线圈的内孔处。
7.根据权利要求4所述的油浸式变压器低压线圈，其特征在于：在线圈厚度的二分之一处安装油道撑条（8）。
8.根据权利要求4所述的油浸式变压器低压线圈，其特征在于：低压线圈最外层加包0.5mm厚的绝缘硬纸筒。
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Cited By (3)

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CN107895639A (zh) * 2017-09-29 2018-04-10 山东达驰电气有限公司 多层圆筒式线圈及其制备工艺
CN108335870A (zh) * 2017-12-25 2018-07-27 中铁第勘察设计院集团有限公司 高低压线圈一次绕制的卷铁芯牵引变压器线圈及绕制方法
CN113674992A (zh) * 2021-08-30 2021-11-19 西安微电子技术研究所 一种使用导热胶料浸渍绕制件的工艺方法

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