CN202384154U - 低损耗电力变压器 - Google Patents

低损耗电力变压器 Download PDF

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Publication number
CN202384154U
CN202384154U CN2011205024589U CN201120502458U CN202384154U CN 202384154 U CN202384154 U CN 202384154U CN 2011205024589 U CN2011205024589 U CN 2011205024589U CN 201120502458 U CN201120502458 U CN 201120502458U CN 202384154 U CN202384154 U CN 202384154U
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iron core
loss
low
transformer
magnetic
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CN2011205024589U
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余嘉庆
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State Grid Corp of China SGCC
State Grid Sichuan Electric Power Co Ltd
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SICHUAN ELECTRIC POWER CO Ltd GUANGAN ELECTRIC POWER BUREAU
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Abstract

本专利涉及电力变压设备，具体为一种低损耗电力变压器。低损耗电力变压器，由铁芯、导磁冷却油、线圈组成，其特征在于：线圈绕在铁芯外，铁芯转角处形成的空隙之间浇注导磁冷却油，导磁冷却油为含磁铁粉末的变压器冷却油。本专利减小了铁心损耗，同时也使变压器得到均匀散温。

Description

低损耗电力变压器
技术领域
本专利涉及电力变压设备，具体为一种低损耗电力变压器。 
背景技术
现有的变压器分别为电压变换；电流变换，阻抗变换；[1]隔离；稳压（磁饱和变压器）;自耦变压器；高压变压器（干式和油浸式）等，变压器常用的铁芯形状一般有E型和C型铁芯，XED型，ED型CD型。有卷铁心和迭铁心之分，变压器的最基本型式，包括两组绕有导线之线圈，并且彼此以电感方式称合一起。当一交流电流(具有某一已知频率)流于其中之一组线圈时，于另一组线圈中将感应出具有相同频率之交流电压，而感应的电压大小取决于两线圈耦合及磁交链之程度。大部分的变压器均有固定的铁芯，其上绕有一次与二次的线圈。基于铁材的高导磁性，大部分磁通量局限在铁芯里，因此，两组线圈藉此可以获得相当高程度之磁耦合。目前的变电器内存在空隙空洞，不利于导磁，空载损耗大，空载电流大。 
发明内容
本专利的目的在于针对以上技术问题，提供一种损耗小更节能的低损耗电力变压器。 
本专利的具体技术方案如下： 
低损耗电力变压器，由铁芯、导磁冷却油、线圈组成，其特征在于：线圈绕在铁芯外，铁芯转角处形成的空隙之间浇注导磁冷却油，导磁冷却油为含磁铁粉末的变压器冷却油。
因为损耗主要为铁损，包括磁滞损耗和涡流损耗，线圈、铁芯形成的空隙是造成铁损的原因之一，原来的铁心斜接处有空隙，卷铁心转角处有空隙。通过浇注导磁冷却油，从而大幅度降低铁损。空隙处填冲了浇注导磁冷却油，卷铁心空隙处有导磁冷却油浇注，使导磁面积增大，减小了转角处的磁密，也就减小了铁心损耗。同时也使变压器得到均匀散温。 
附图说明
图1为本专利结构示意图。 
其中，1——铁芯、2——线圈、3——导磁冷却油。 
具体实施方式
下面结合具体实施方式和附图对本专利作进一步说明。 
低损耗电力变压器，由铁芯、导磁冷却油、线圈组成，线圈绕在铁芯外，铁芯转角处形成的空隙之间浇注导磁冷却油，导磁冷却油为含磁铁粉末的变压器冷却油。 
因为损耗主要为铁损，包括磁滞损耗和涡流损耗，线圈、铁芯形成的空隙是造成铁损的原因之一，原来的铁心斜接处有空隙，卷铁心转角处有空隙。通过浇注导磁冷却油，从而大幅度降低铁损。空隙处填冲了浇注导磁冷却油，卷铁心空隙处有导磁冷却油浇注，使导磁面积增大，减小了转角处的磁密，也就减小了铁心损耗。同时也使变压器得到均匀散温。 

Claims (1)

1.低损耗电力变压器，由铁芯、导磁冷却油、线圈组成，其特征在于：线圈绕在铁芯外，铁芯转角处形成的空隙之间浇注导磁冷却油。
CN2011205024589U 2011-12-06 2011-12-06 低损耗电力变压器 Expired - Lifetime CN202384154U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110431645A (zh) * 2017-03-13 2019-11-08 学校法人同志社 变压器油、变压器油评价方法以及变压器油评价装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110431645A (zh) * 2017-03-13 2019-11-08 学校法人同志社 变压器油、变压器油评价方法以及变压器油评价装置

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Address after: 199 No. 638000 Guang'an city of Sichuan Province, Jinan Avenue

Patentee after: GUANG'AN POWER SUPPLY COMPANY, STATE GRID SICHUAN ELECTRIC POWER Co.,Ltd.

Address before: 199 No. 638000 Guang'an city of Sichuan Province, Jinan Avenue

Patentee before: Sichuan Electric Power Co.,Ltd. Guangan Electric Power Bureau

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Address after: 199 No. 638000 Guang'an city of Sichuan Province, Jinan Avenue

Patentee after: GUANG'AN POWER SUPPLY COMPANY, STATE GRID SICHUAN ELECTRIC POWER Co.,Ltd.

Patentee after: State Grid Corporation of China

Address before: 199 No. 638000 Guang'an city of Sichuan Province, Jinan Avenue

Patentee before: GUANG'AN POWER SUPPLY COMPANY, STATE GRID SICHUAN ELECTRIC POWER Co.,Ltd.

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Granted publication date: 20120815