| 引用本文: | 胡贤德,吴环红,张 弘,周 浩,戈镇全,孙 可,张全明,潘 弘,方淦林,封东良.10kV配电变压器和箱式变电站升压改造至20 kV电压等级的研究[J].电力自动化设备,2012,32(12): |
| HU Xiande,WU Huanhong,ZHANG Hong,ZHOU Hao,GE Zhenquan,SUN Ke,ZHANG Quanming,PAN Hong,FANG Ganlin,FENG Dongliang.Upgrading of 10 kV distribution transformer and prefabricated substation to 20 kV voltage level[J].Electric Power Automation Equipment,2012,32(12): |
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| 10kV配电变压器和箱式变电站升压改造至20 kV电压等级的研究 |
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胡贤德1, 吴环红2, 张 弘3, 周 浩1, 戈镇全4, 孙 可3, 张全明3, 潘 弘3, 方淦林5, 封东良6
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1.浙江大学 电气工程学院，浙江 杭州 310027;2.浙江派尔电气有限公司，浙江 湖州 313216;3.浙江省电力公司，浙江 杭州 310014;4.海盐变压器有限公司，浙江 嘉兴 314302;5.桐乡市供电局，浙江 嘉兴 314500;6.海宁开关厂有限公司，浙江 嘉兴 314406
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| 摘要: |
| 提出具体改造方法，通过计算铁芯参数、高压绕组参数和低压绕组参数，分析了各类型10 kV配电变压器升压改造技术可行性，并比较不同升压改造方案的经济性以确定最优改造方案。分析结果表明：10 kV干式变压器具有减容量改造技术可行性，但成本高于直接更换为等容量全新20 kV干式变压器方案，因此宜直接将其更换为20 kV干式变压器；约90 % 的10 kV油浸式变压器能够顺利等容量升压改造为20 kV油浸式变压器，改造过程中对高压绕组进行更换，其成本约为同容量全新20 kV油浸式变压器价格的35 % ~ 45 %；欧式箱变具备改造可行性，美式箱变则宜直接更换。 |
| 关键词: 20 kV电压等级 配电 变压器 变电站 改造 |
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| Upgrading of 10 kV distribution transformer and prefabricated substation to 20 kV voltage level |
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HU Xiande1, WU Huanhong2, ZHANG Hong3, ZHOU Hao1, GE Zhenquan4, SUN Ke3, ZHANG Quanming3, PAN Hong3, FANG Ganlin5, FENG Dongliang6
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1.College of Electrical Engineering，Zhejiang University，Hangzhou 310027，China;2.Zhejiang Pyle Electric Co.，Ltd.，Huzhou 313216，China;3.Zhejiang Electric Power Corporation，
Hangzhou 310014，China;4.Haiyan Transformer Co.，Ltd.，Jiaxing 314302，China;5.Tongxiang Power Supply Bureau，Jiaxing 314500，China;6.Haining Switch Co.，Ltd.，Jiaxing 314406，China
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| Abstract: |
| The technical feasibility of voltage upgrading is analyzed by calculating the parameters of core，high-voltage winding and low-voltage winding for various types of 10 kV distribution transformer，and the economic effect is compared among different upgrading schemes for selecting the optimal one. Results show that，10 kV dry-type transformer can be technically upgraded to 20 kV level by capacity reduction but the cost is higher than new 20 kV dry-type transformer with same capacity，so it should be replaced by 20 kV one；about 90 % of 10 kV oil-filled transformers can be easily upgraded to 20 kV level without capacity reduction by high-voltage winding replacement and the cost is about 35 % — 45 % of new 20 kV oil-filled transformer with same capacity；it is possible to upgrade European prefabricated substation from 10 kV to 20 kV；American prefabricated substation should be replaced by 20 kV one. |
| Key words: 20 kV voltage level electric power distribution electric transformers electric substations upgrading |
