2×660MW 燃煤电厂电气部分设计专业：电气工程及其自动化摘 要发电厂是电力系统的重要组成部分, 也直接影响整个电力系统的安全与运行。在发电厂中，一次接线和二次接线都是其电气部分的重要组成部分。本文为规划 4×660MW 燃煤电厂的一期工程 2×660MW 燃煤电厂电气部分设计，通过对拟建火力发电厂的概括以及出线方向来考虑，并通过对负荷资料的分析，从安全性、经济性及可靠性方面考虑，确定了 220kV 以及厂用电的主接线，然后通过负荷计算及供电范围确定了主变压器台数、容量及型号，同时也确定了厂用变压器的容量及型号。最后，根据最大持续工作电流及短路计算的结果，对高压断路器、隔离开关、母线、绝缘子、穿墙套管、电压互感器、电流互感器进行了选型，从而完成了 2×660MW 燃煤电厂电气部分设计。关键词：电气主接线 短路电流 一次设备 2 × 660MW coal-fired electric power plant part of the designMajor：Electrical Engineering and Automation Abstract：Power is an important part of the power system, but also directly affect the safety and operation of the entire power system. In power plants, the primary wiring and secondary wiring are important components of the electrical parts.This article is planning a project 4 × 660MW coal-fired power plant 2 × 660MW coal-fired electrical power plant part of the design, by the generalization of the proposed power plant as well as outgoing direction to consider, and through the load data analysis, from the security, economy and reliability considerations, as well as determine the 220kV electricity main connection factory, and then determine the number of main transformer station, capacity and type and scope of supply by the load calculation, but also determine the auxiliary transformer capacity and model. Finally, according to the results of the maximum continuous operating current and short circuit calculations, high-voltage circuit breakers, disconnectors, bus, insulators, wall bushing, voltage transf...
VIP
