介绍了某供热主管道1号中继泵站内部的变配电系统，分析了配电设备选择、供电电源设计、电量计量等方法，阐述了电气照明、防雷接地等系统的保护与控制措施，总结了谐波抑制治理与线路敷设要点，保证了工程设计的合理性。%The paper introduces the internal power transforming and distributing system of No. 1 Zhongji pumping station of the major heating sup-ply pipeline,analyzes power distributing equipment selection,power supply power source design,and power quantity metering and other meth-ods,describes protection and control measures of electric lighting and lightning grounding system,and summarizes harmonic suppression treat-ment and route laying points,so as to guarantee the rationality of engineering design.
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