油浸式变压器温度场的可控发热模拟装置研究

李洋; 赵振刚; 许晓平; 李川; 李英娜

doi:10.13433/j.cnki.1003-8728.2019.20180276

油浸式变压器温度场的可控发热模拟装置研究

doi: 10.13433/j.cnki.1003-8728.2019.20180276

昆明理工大学信息工程与自动化学院, 昆明 650500

基金项目:

国家自然科学基金项目 51567013

国家自然科学基金项目 51667011

国家自然科学基金项目 61765009

详细信息

作者简介:
李洋(1991-), 硕士研究生, 研究方向为变压器绕组热点温度分布研究, 314293405@qq.com

通讯作者:
赵振刚, 副教授, 硕士生导师, zhaozhenganghit@126.com

中图分类号: TM411
计量
- 文章访问数: 332
- HTML全文浏览量: 152
- PDF下载量: 14
- 被引次数: 0
出版历程
- 收稿日期: 2018-09-03
- 刊出日期: 2019-07-05

Exploring Controllable Heating Analog Device of Oil-filled Transformer Temperature Field

Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China

摘要

摘要: 通过研究油浸式电力变压器的热生成与热传导机理，研制了一种内部热源的可控发热变压器模拟装置。利用热电偶传感器对内部热源的变压器进行多点测温，并把内部热源变压器绕组温度数据与油浸式变压器绕组温度进行分析和比较。结果表明，研制的变压器在额定功率工作条件下，顶层油温81.7℃，底层油温57.7℃，顶层绕组88.5℃，底层绕组72.9℃，顶层油温及关键节点温度和大型油浸式电力变压器绕组温度基本吻合，额定功率下最大温度偏差为0.5℃，1.3倍额定功率下最大温度偏差为0.6℃。
- 热生成 /
- 热传导 /
- 变压器 /
- 内部热源 /
- 可控发热
Abstract: Through the study of the heat generation and heat conduction mechanisms of oil-immersed transformer, a controllable heating analog device with internal heat source is developed. Its temperature is measured at several points with a thermocouple sensor. Then, the temperatures of the windings of the heating analog device with internal heat source and the oil-immersed transformer are analyzed and compared. The results show that the top oil temperature of the transformer at the rated power that was developed in the paper is 81.7℃; its bottom oil temperature is 57.7℃, its top winding temperature is 88.5℃, and its bottom winding temperature is 72.9℃. The top oil temperature and key nodal temperature are basically consistent with the temperature of the windings of the large oil-immersed power transformer. The maximum temperature deviation of the transformer at the rated power is 0.5℃, and its maximum temperature deviation at the 1.3 times rated power is 0.6℃.
- heat transfer /
- heat generation /
- transformer /
- internal heat source /
- controllable heating analog device

HTML全文

图 1 变压器结构示意图

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图 2 研制变压器实物图

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图 3 传感器在垫片中安装示意图

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图 4 研制变压器监测系统示意图

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图 5 传感器安装现场照片

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图 6 传感器在垫片中安装示意图

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图 7 传感器现场安装照片

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图 8 研制变压器温度分布情况

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图 9 变压器数据与研制的变压器数据对比曲线

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表 1 变压器工作温度监测数据

监测对象	距底部位置与绕组高百分比/%	工作条件/℃
监测对象	距底部位置与绕组高百分比/%	额定功率	1.3倍功率
变压器油	100	81.5	83.8
	50	68.5	71
	0	57.3	61.5
绕组	89.10	87.7	90.7
	67.30	86.6	90.4
	45.60	82.2	86.3
	23.60	76.2	81.2
	1.80	70.5	74.6

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表 2 变压器数据与研制变压器数据对比

距底部位置与绕组高百分比/%	额定功率			1.3倍额定功率
距底部位置与绕组高百分比/%	变压器实测温度/℃	研制变压器实测温度/℃	温度偏差/℃	变压器实测温度/℃	研制变压器实测温度/℃	温度偏差/℃
1.8	70.5	70.6	0.1	74.6	75	0.4
23.6	76.2	76.2	0	81.2	81.6	0.4
45.6	82.2	82.7	0.5	86.3	86.9	0.6
67.3	86.6	86.8	0.2	90.4	90.3	0.1
89.1	87.7	87.5	0.2	90.7	90.9	0.2

下载: 导出CSV

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