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Effect of motor vibration problem on the power quality of water pumping stations

机译：电机振动问题对抽水站电能质量的影响

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In this paper the effect of motor vibration problems on the dynamic performance and electrical power quality of water pumping stations is studied. A pump unit was tested for a full load and no load operating conditions. The dynamic results indicated that there is a problem of looseness in the motor base plate. The measurements were repeated again after achieving good support to the motor on its base plate. The results indicated that the vibration level decreased about 48% due to good support. The electrical power quality analysis showed that; the total harmonic distortion (THD) increases by about 1–2% due to the effect of bad motor vibration, and the 5th and 7th harmonic contents also increased by about 0.5–1.0%. Also the bad motor vibration caused large values of instantaneous flicker. These results indicated that the bad motor support causes many dynamics troubles and causes some power quality problems for the electrical feeder.
机译：本文研究了电动机振动问题对水泵站动态性能和电能质量的影响。对泵单元进行了满负荷和无负荷运行条件测试。动态结果表明电动机底板存在松动的问题。在其底板上获得对电动机的良好支撑之后，再次重复测量。结果表明，由于良好的支撑，振动水平降低了约48％。电能质量分析表明：由于电机振动不良的影响，总谐波失真（THD）增加了大约1-2％，而第五和第七次谐波含量也增加了大约0.5-1.0％。同样，不良的电动机振动会导致大量瞬时闪烁。这些结果表明，不良的电动机支撑会导致许多动力学问题，并给电馈线带来一些电能质量问题。

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