摘要
对某公司前期、后期工程直接空冷系统配电设备的设计选型进行了对比分析,认为后期工程中空冷系统的设备选型更合理,设备性能较优,机组运行效果良好:后期工程变频器电源快熔开关方案不仅降低了投资,而且快熔开关的工作特性不受变频器电流频率变化和谐波的影响;空冷变频器输出电缆采用阻燃型交联聚乙烯铠装电力电缆可以降低投资;低压空冷变压器接线组别采用"4工作2备用"的方式对谐波有较强的抑制作用;空冷变频器设备采用"排风道系统+室内空调"冷却方案,散热效果能够满足变频器的正常运行要求。
Design scheme of direct air-cooling system power distribution equipment company were analyzed between the former and the later projects, the author thought the later scheme was reasonable, and performance and operation effect were good. inverter power fuse switch scheme not only reduced the investment, but the in a that The work characteristics of fuse switch would not affected by the changes in harmony inverter current frequency wave in the later one, the air-cooled converter output cable with flame retardant XLPE could reduce the investment, the low-pressure air-cooled transformer wiring group adopted 4 running and 2 spare approach had strong inhibitory effects on harmonic, and when the air-cooled frequency converter equipment adopted exhaust duct system and indoor air conditioning cooling scheme, the cooling effect could meet the normal operation requirements of the inverter.
出处
《内蒙古电力技术》
2013年第3期74-78,共5页
Inner Mongolia Electric Power
关键词
直接空冷机组
变频器
谐波控制
断路器
空冷变压器
接线组别
direct air cooling unit
inverter
harmonic control
breaker
air-cooled transformer
connection group
