Aiming at the harm of electromagnetic interference (EMI) in the 6 kV waterflood pump's power distribution system of Mobei oil-field, the reason of the generation of EMI was analyzed. Based on the analysis of wiring diagram and principle control diagram and the observation of field failure, the fault brought by EMI was affirmed;the reasonable solution was stated) the EMI harm was successfully eliminated) the safety production of Mobei oil-field was assured. The solution and analysis of this practical project case provide important reference for how to restrain the harm of EMI in power system.%针对漠北油田6 kV注水泵配电系统中的电磁干扰危害,分析了产生电磁干扰的原因,通过对系统一次接线图及二次控制原理图的分析和现场故障的考察,确认了故障是由电磁干扰造成的,提出了合理的解决方案,成功地消除了电磁干扰危害,确保了漠北油田的安全生产.通过对这一实际工程案例的分析和处理,为电力系统中如何抑制电磁干扰带来的危害提供了重要的参考价值.
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