| 大型电动机软起动的节能问题分析 |
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| 引用本文： | 李广文,朱雄心,王文吉.大型电动机软起动的节能问题分析[J].黑龙江电力,2007,29(3):197-200. |
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| 作者姓名： | 李广文 朱雄心 王文吉 |
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| 作者单位： | 1. 鹤岗电业局,黑龙江,鹤岗,154101
2. 哈尔滨帕特尔科技有限公司,黑龙江,哈尔滨,150010 |
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| 摘 要： | 超大型电机直接全压起动时起动电流很大,会引起大的电网电压波动,影响同电网其它设备的正常运行.当前在工程实践上多采用为超大型电机设立独立变压器供电的方式来隔离其影响,但独立变压器方式仅解决了电机起动时电网电压波动问题.开关变压器式高压电机软起动装置可以解决超大型电机的软起动难题,同独立变压器方式相比较,能节约大量电能.
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| 关 键 词： | 超大型电机 软起动 节能 开关变压器式 电机软起动装置 电动机软起动 节能 问题分析 start up motor capacity large energy analysis 电能 节约 比较 软起动装置 高压电机 开关变压器 波动问题 电网电压 电机起动 隔离 供电 设立 |
| 文章编号： | 1002-1663（2007）03-0197-04 |
| 修稿时间： | 2007-04-05 |
Save energy analysis for a large capacity motor to start up |
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| LI Guangwen,ZHU Xiongxin,WANG Wenji.Save energy analysis for a large capacity motor to start up[J].Heilongjiang Electric Power,2007,29(3):197-200. |
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| Authors: | LI Guangwen ZHU Xiongxin WANG Wenji |
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| Affiliation: | 1. Hegang Electric Power Bureau, Hegang 154101, China; 2. Harbin Pattern Science and Technology Co. , Ltd,Harbin 150010,China |
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| Abstract: | The startup current will be higher when extra large capacity motor starts up directly with full voltage, which can result in significant vibration of power grid voltage and has a bad effect on other devices connected in the same power grid. At present, the general method to isolate its effect is to set up an independent transformer supplying large capacity motor in actual engineering. However, it only solves the problem of power grid voltage vibration when the motor starts up. The high voltage motor soft startup device of switching transformer mode can handle it and save energy comparing it with independent transformer mode. |
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| Keywords: | extra large capacity motor soft startup save energy switching transformer soft startup device of motor |
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