降压变电所电气设计

Electrical Design of Step-down Transformer Substation

变电所是电力系统的重要组成部分,它担负着从电力系统中受电、变压、分配电能的任务。因此,变电所的设计工作是电气工程环节的关键部分。本设计以生产实际为依据,以变电所的最佳运行状态为基础,结合理论知识,通过实际计算,包括负荷计算和短路电流计算所获得的数据,选择各种电气设备,包括变压器、断路器、隔离开关、互感器和母线等,并对它们进行校验,确定所选的电气设备能满足技术上的需要,并且满足供电的可靠性和经济性的要求,文中阐明了10 kV变电所设计的基本方法和步骤。经过多方面校验,证明是满足实际生产需要的一套设计方案。

Transformer substations are important parts of power system.They undertake the tasks of receiving,transforming and distributing electric energy from power system.So,design of transformer substation is a key job in electrical engineering task.Basic methods and procedures for a design of a 10 kv transformer substation are given.The design is based on the transformer optimal running status in production practice,combined with theoretical knowledge,practical calculation including load calculation and short circuit calculation,then various electrical appliances such as transformer,circuit breaker,isolating switch,instrument transformer and generatrix are selected by obtained data.which are tested to determine whether the selected appliances meet the requirements of technology,reliability and economy for power supply.