电工电气
電工電氣
전공전기
ELECTROTECHNICS ELECTRIC
2013年
10期
40-43
,共4页
燃煤型火力发电机组%厂用电源%电源切换
燃煤型火力髮電機組%廠用電源%電源切換
연매형화력발전궤조%엄용전원%전원절환
coal-burning thermal power generating sets%plant use power supply%power source switching
为确保燃煤型火力发电机组重要负载供电的连续可靠，不同电压等级配电装置采用多路进线电源。分析了厂用电系统中不同电源切换的特点，并给出相关电源的接线图；在主电源失电后依据进线电源的特点及切换的逻辑顺序快速合上备用电源，当主电源复电后能将备用电源反切到由主电源供电，为重要负载稳定运行从电源上提供了保障。
為確保燃煤型火力髮電機組重要負載供電的連續可靠，不同電壓等級配電裝置採用多路進線電源。分析瞭廠用電繫統中不同電源切換的特點，併給齣相關電源的接線圖；在主電源失電後依據進線電源的特點及切換的邏輯順序快速閤上備用電源，噹主電源複電後能將備用電源反切到由主電源供電，為重要負載穩定運行從電源上提供瞭保障。
위학보연매형화력발전궤조중요부재공전적련속가고，불동전압등급배전장치채용다로진선전원。분석료엄용전계통중불동전원절환적특점，병급출상관전원적접선도；재주전원실전후의거진선전원적특점급절환적라집순서쾌속합상비용전원，당주전원복전후능장비용전원반절도유주전원공전，위중요부재은정운행종전원상제공료보장。
In order to ensure continuous reliability of coal-burning thermal power generating sets important load power supply, different voltage grade distribution devices adopted multiple line-in power sources. Analysis was made to different switching features in plant power use system, the wiring diagram of related power source given. On main power source lost, according to features of line-in power source and logic sequence of switching, the spare power source would be quickly making on. When the main power source was recovered, the spare power source can be reversely switched to main power source to supply power, which provided guarantee for important load stable operation from power source.
