| 煤矿井下电动机满载启动时端电压的计算 |
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| 引用本文： | 穆成,杨军梨,穆连生. 煤矿井下电动机满载启动时端电压的计算[J]. 雁北师范学院学报, 2011, 27(3) |
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| 作者姓名： | 穆成 杨军梨 穆连生 |
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| 作者单位： | 1. 山西晋神河曲磁窑沟煤业有限公司,山西河曲036500
2. 山西大同大学煤炭工程学院,山西大同,037003 |
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| 摘 要： | 在煤矿井下低压供电系统计算中,要校验电动机的起动,通常取电动机额定电压的0.75倍作为最小起动电压,对于空载起动的负载是满足要求的。但是,对于输送机类的负载,经常出现满载起动的情况,计算电动机最小起动电压应取0.9倍额定电压,解决起动困难,是切实可行的方法。本文用全阻抗法计算电动机在满载起动时的最小电压。
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| 关 键 词： | 供电单元 起动阻抗 额定阻抗 起动电流 额定电流 电压损失 |
The Calculation of Full Loaded Start-up Terminal Voltage of a Coal Mine Underground Electric Motor |
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| MU Cheng,YANG Jun-li,MU Lian-Sheng. The Calculation of Full Loaded Start-up Terminal Voltage of a Coal Mine Underground Electric Motor[J]. Journal of Yanbei Teachers College, 2011, 27(3) |
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| Authors: | MU Cheng YANG Jun-li MU Lian-Sheng |
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| Affiliation: | MU Cheng1,YANG Jun-li1,MU Lian-Sheng2(1.Ciyaogon Mining Company,Hequ Shanxi,036500,2.School of Coal Engineering,Shanxi Datong University,Datong Shanxi,037003) |
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| Abstract: | The calculation of Low-Voltage coal mine power supply system includes the verification of electric motor＇s start-up conditions.Usually take 0.75 times of Rated Voltage as Minimum Start-up Voltage.This is sufficient for Empty Load,but as of the conditions of conveyors,full loaded start-up must be taken under consideration.If take the 0.9 times of Rated Voltage as Minimum Start-up Voltage,it will be appropriate.This article uses the ＂Full Impedance＂ calculating method to determine the Minimum Start-up Voltage under full loaded conditions. |
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| Keywords: | electric supply uint start-up impedance nominal impedamce start-up current voltage loss |
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