广播电视转播台站低压双回路供电系统设计与运行

Design and Operation of Low Voltage Double Circuit Power Supply System in Radio and Television Relay Station

随着我国广播电视转播台站的高质量发展,其对供电可靠性的要求也越来越高,需要两路供电线路来保证供电的安全性。目前甘肃省多数广播电视转播台站低压配电系统存在内部线路老化、线路结构杂乱、切电转换故障率高等缺点,并且没有消声节电装置,380 V交流接触器电磁噪声大、吸合不牢固,容易造成停电事故,严重威胁着台站广播电视安全播出。基于此,设计低压双回路供电系统,以保障台站广播电视播出的安全性和稳定性。

With the high-quality development of radio and television relay stations in my country,the requirements for power supply reliability are getting higher and higher,and two power supply lines are needed to ensure the safety of power supply.At present,the lowvoltage power distribution system of most radio and television relay stations in Gansu province has the shortcomings of aging internal lines,cluttered line structure,high failure rate of power-cutting and conversion,and there is no noise reduction and power-saving device solid,easy to cause power outages,a serious threat to the safe broadcast of radio and television stations.Based on this,a lowvoltage dual-circuit power supply system is designed to ensure the safety and stability of radio and television broadcasting at the station.