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净水厂是城市发展的生命线,做好水厂供电工作具有十分重要的意义。本文以天津市开发区某净水厂三期工程的电气设计为实例,在遵循电气设计的相关规范和基本原则的前题下,通过外电源引入、负荷计算、总降压变电所的位置和主变压器的台数及容量、变电所主接线、高压配电系统、低压配电系统、无功功率补偿措施、继电保护及二次接线、控制系统、电气设备选择、厂区电缆路径、防雷接地等设计内容,完整介绍了水厂的电气设计过程及各个电气设计环节的具体做法。通过此工程设计实例阐述了配电设计的基本步骤、要求,为其他工程设计提供借鉴。
Water purification plant is the lifeblood of urban development, water supply work well has a very important significance. Taking the electrical design of the third phase project of a water purification plant in Tianjin Development Zone as an example, under the premise of following the relevant norms and basic principles of electrical design, this paper introduces the external power supply, load calculation, And the number of main transformers and capacity, the main substation wiring, high voltage distribution system, low voltage distribution system, reactive power compensation measures, secondary protection and secondary wiring, control systems, electrical equipment selection, plant cable path, Lightning ground and other design content, a complete introduction to the water plant’s electrical design process and the various aspects of electrical design practices. Through this engineering design example, the basic steps and requirements of power distribution design are expounded, which can provide reference for other engineering design.