对联合循环机组电气主接线设计的看法和建议  

Opinions and Comments on Design of Main Electric Wiring of Combined Circulation Units

作　　者：罗炳林[1] 

机构地区：[1]中南电力设计院,武汉市430071

出　　处：《电力建设》2004年第4期1-5,共5页Electric Power Construction

摘　　要：根据联合循环机组的特点 ,对其电气主接线设计提出 3点建议 :(1)在燃气轮机和单轴机组的发电机出口 ,都应装设大容量的SF6断路器 ,以适应机组频繁启动运行的要求。 (2 )对于以同步马达运行方式启动的大型燃气轮发电机或单轴机组的发电机 ,每 2台或 3台发电机装设 2套互为备用的SFC装置。 (3)多轴机组的燃气轮发电机只设380V厂用电母线 ,汽轮机及公用设 6kV和 380VAccording to the features of the combined circulation units the author puts forward the comments on design of main electric wiring as follows: (1) The SF 6 circuit breakers with large capacity should be installed at the generator outlets for gas-turbine and single-shaft units to meet the unit requirements for frequent start-up in operation. (2) For large gas-turbine generator or single-shaft units which is started with synchronized motors 2 sets of SFC devices with mutual stand-by should be provided for 2 or 3 generators. (3) The multi-shaft gas-turbine generator should be only provided with 380 V auxiliary bus, while turbine and common facilities be provided with auxiliary power buses at 2 voltage levels, 6 kV and 380 V.

关 键 词：电气主接线 设计 联合循环机组 燃气轮发电机 汽轮发电机组 

分 类 号：TM645[电气工程—电力系统及自动化] TM31