三相異步電動(dòng)機(jī)Y-Δ降壓啟動(dòng)電路另類故障分析 

張子善，朱澤勝，劉洪志 
(中國人民解放軍96625部隊(duì)，河北 宣化 075100) 
 

摘 要：介紹了三相異步電動(dòng)機(jī)Y-Δ降壓啟動(dòng)電路中，當(dāng)接觸器和時(shí)間繼電器額定電壓不完全一致時(shí)，可能出現(xiàn)接觸器振動(dòng)吸合和時(shí)間繼電器提前開始計(jì)時(shí)的另類故障現(xiàn)象，分析了故障產(chǎn)生原因，通過對(duì)控制電路進(jìn)行修正，切斷了導(dǎo)致故障產(chǎn)生的“提前通路”，保證了Y-Δ轉(zhuǎn)換功能正常。此方法對(duì)其他Y-Δ降壓啟動(dòng)電路類似故障的解決均有借鑒意義。
關(guān)鍵詞：三相異步電動(dòng)機(jī)；Y-Δ降壓啟動(dòng)；故障；提前通路
中圖分類號(hào)：TM343+.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2014)03-0031-03

Offbeat Fault Analysis of Y-Δ Reduced Voltage Starting Circuit in Three-Phase Asynchronous Motor 

ZHANG Zi-shan, ZHU Ze-sheng, LIU Hong-zhi 
（Troops of 96625 PLA, Xuanhua 075100, China） 
 

Abstract: Introduction was made to that in Y-Δ reduced voltage starting circuits of three-phase asynchronous motors, the offbeat fault of contactor vibrating making took place and time relays counted ahead of time when the rated voltage of contactors were not in uniform with that of time relays. The faults causes were analyzed, the control circuit was modified and the path ahead of time
was cut off to ensure Y-Δ transferring in normal function. This method is a reference for similar faults of other Y-Δ reduced voltage starting circuits.
        Key words: three-phase asynchronous motor; Y-Δ reduced voltage starting circuit; fault; early circuit path

參考文獻(xiàn)
[1] 劉光茹.三相異步電動(dòng)機(jī)常用的Y-Δ降壓啟動(dòng)[J].中小企業(yè)管理與科技，2012(1)：307-308.
[2] 高靜.電機(jī)拖動(dòng)技術(shù)[M].北京：北京郵電大學(xué)出版社，2010. 
[3] 舒蕾，鄧鵬.Y-Δ降壓啟動(dòng)線路常見故障的分析與改進(jìn)方案[J].安徽電子信息職業(yè)技術(shù)學(xué)院學(xué)報(bào)，2007(1)：88-89.
[4] 石志勇.三相異步電動(dòng)機(jī)Y/Δ降壓啟動(dòng)的分析與改進(jìn)[J].職業(yè)，2012(26)：95-96.