农业科技与装备
農業科技與裝備
농업과기여장비
Agricultural Science & Technology and Equipment
2015年
8期
36-38,41
,共4页
直流系统%接地故障%直流绝缘监察装置%分析
直流繫統%接地故障%直流絕緣鑑察裝置%分析
직류계통%접지고장%직류절연감찰장치%분석
DC system%grounding%DC insulation inspection device%analysis
由于分布范围较广及工作环境比较恶劣,直流系统容易发生绝缘降低的现象.直流系统的绝缘情况直接影响到直流控制、信号监视回路的稳定性和可靠性,因此在直流系统发生故障时,能够及早发现并迅速处理就显得尤为重要. 介绍一起发电厂发生的直流系统接地故障,对直流系统接地时出现的异常现象进行详细的理论分析,并依据分析结论提出改善措施.
由于分佈範圍較廣及工作環境比較噁劣,直流繫統容易髮生絕緣降低的現象.直流繫統的絕緣情況直接影響到直流控製、信號鑑視迴路的穩定性和可靠性,因此在直流繫統髮生故障時,能夠及早髮現併迅速處理就顯得尤為重要. 介紹一起髮電廠髮生的直流繫統接地故障,對直流繫統接地時齣現的異常現象進行詳細的理論分析,併依據分析結論提齣改善措施.
유우분포범위교엄급공작배경비교악렬,직류계통용역발생절연강저적현상.직류계통적절연정황직접영향도직류공제、신호감시회로적은정성화가고성,인차재직류계통발생고장시,능구급조발현병신속처리취현득우위중요. 개소일기발전엄발생적직류계통접지고장,대직류계통접지시출현적이상현상진행상세적이론분석,병의거분석결론제출개선조시.
DC system network is widely distributed in power plant, and because some of the work environment is poor, DC system occurs to the phenomenon of insulation reduction easily. The insulation of DC system directly affects the stability and reliability of DC control and signal monitoring circuit, so it is very important to detect and deal with the one point grounding fault when it happens in DC system. In this paper, it introduced DC system grounding fault in power plant, and analyzed abnormal phenomenon in DC system in detail, and gave improved measures according to the analysis conclusion.
