Research of Harm Analysis of Capacitance Current of Renlou Coal Mine and Its Treatment
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摘要: 阐述了山西离柳焦煤集团有限公司安全监测综合信息联网平台的设计与应用情况。通过该平台，煤矿企业集团公司可对下属矿井所涉及的安全、生产、人员数据进行有效集成，达到在集团公司指挥中心实现远程监测、统一管理、集中调度的目标。文章对煤矿行业集团公司的信息化建设有很好的借鉴作用。Abstract: In order to solve the problem that single-phase grounding capacitance current of isolated neutral system could cause secondary disaster and equipment damage in distribution network and generate single-phase arc grounding over-voltage and ferromagnetic resonance over-voltage, the paper analyzed and evaluated testing data of capacitance current of distribution network of Renlou Coal Mine, established a treating scheme of capacitance current according to evaluating results, namely changing isolated neutral system to neutral grounding running mode by arc suppression coil, and gave concrete implementing scheme. The running result showed that the scheme greatly decreases rate of accidents of arc grounding over-voltage with high amplitude and restrains ferromagnetic resonance over-voltage, which was good for prolonging usage time of cable.
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