电视发射台电力系统升级改造

Power Supply System Upgrade of Television Transmitting Station

为确保广播电视节目的正常播出,廊坊电视发射台进行了双路电源供电改造,保留现有的供电线路,并增加一路新的供电线路。双路供电采用低压侧电源自切换的工作方式,两路电源均正常时由主路电源供电,主路电中断时自动切换到备路电源供电。当主路电恢复正常时,手动或自动切换到主路电源供电。通过新装供电线路设计步骤的阐述,对负荷计算、短路电流计算、设备选择过程作了详细介绍,为今后发射台供电改造项目提供参考。

In order to ensure the broadcasting of television program, Langfang Television Transmitting Station reconstruct the dual power supply. To keep the existing power lines, and adding one new power lines. Through the new power lines design steps are discussed, the load calculation, short - circuit current calculation, equipment selection process in detail, for the future of transmitter power transformation project to provide a reference.