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摘 要
本设计主要为某10KV变电站继电保护设计，其中包括变电所供配电的设计、变压器的选择、设备选择、校验、变电所照明设计及弱电设计等。
本设计根据《电力系统设计技术规程》结合实际来对变压器及主接线进行选择，主接线采用高压侧均为单母线分段的接线方式。根据设计中提供的原始数据，进行短路电流计算，确定母线和每一条馈出线路上的短路电流，并进行动稳定和热稳定的校验。并进行动稳定和热稳定的校验，以选择合适的电缆和电气设备，保证母线和用电设备的安全、可靠地运行。其中变电所的系统图、平面布置图照明图、二次接线图的绘制以及各个相关的计算，继电保护是重点。各个图充分展示了各个部分的设计构想。
关键词：变电所、变压器、短路电流、继电保护
Abstract
This design m construction drawing the design, supplies the power distribution including the transformer substation the design, the transformer choice, the equipment choice, the verification, the transformer substation illumination design and the weak electricity design and so on. This design according to "Electrical power system Design Technology Regulations" to unify actual comes carries on the choice to the transformer and the host wiring, the main wiring uses the high-tension side for the single generatrix partition wiring way. According to designs the primary data which provides, carries on the short-circuit current computation, on the definite generatrix and each line short-circuit current, advances together the motion to be stable and the heat-stable verification. Advances together the motion to be stable and the heat-stable verification, chooses the appropriate electric cable and the electrical equipment, guaranteed the generatrix and the current collector security, reliably moves. Transformer substation diagram, the floor-plan illumination chart, two wiring diagrams plan as well as each related computation, Electricity protection are key. Each chart has fully demonstrated each part of design conception.
Key Words：Transformer substation、Transformer、Short-circuit protection、Electricity protection