假負載在中波維護中的應用

打開文本圖片集
摘要:中波風冷假負載(以50 kW為例)應用于528中波發(fā)射臺,該設備采用大功率無感電阻,滿足使用功率要求,通過合理阻抗匹配,在設備維修、調試中使用,極大地減少了維護人員的工作量,提高了設備的容錯率,在保障安全播出中起到關鍵作用。
關鍵詞:假負載;風冷;匹配;無感電阻;維護
doi:10.3969/J.ISSN.1672-7274.2023.04.040
中圖分類號:TN 948.53 文獻標示碼:B 文章編碼:1672-7274(2023)04-0-03
Application of False Load in Medium Wave Maintenance
WANG Wei
(Shanxi Radio and Television Radio Management Center 528, Taiyuan 030000, China)
Abstract: The medium-wave air-cooled dummy load (50 kW as an example) is applied to the 528 medium-wave transmitting station. The equipment uses high-power non-inductive resistance to meet the use power. Through reasonable impedance matching, it is used in equipment maintenance and commissioning, which greatly reduces the workload of maintenance personnel staying up late, improves the fault tolerance rate of the equipment, and plays a key role in ensuring safe broadcasting.
Key words: dummy load; air cooling; matching; Non-inductive resistance; maintain
1 中波假負載
假負載是替代終端在某一電路(如放大器)或設備輸出端口接收電功率的元器件、部件或裝置,一般用于機器調試或維修維護工作。(剩余3761字)