常見例句雙語例句It can compel the output voltage to be positive sequence voltage source.它具有強(qiáng)制輸出耑電壓爲(wèi)同步的正序基波電壓源的特點(diǎn)。In the paper, the reduced single phase short-circuit current equation expressing as positive sequence impi dance only is showed.文中還提出了低壓系統(tǒng)中衹用正序阻抗表達(dá)的單相短路電流的簡(jiǎn)化計(jì)算公式。Measures, such as the floating of threshold, braking by positive sequence current, driving up the threshold during power swing, etc are suggested to prevent th.採用浮動(dòng)門檻、正序電流制動(dòng)和靜穩(wěn)破壞後提高動(dòng)作門檻值的方法，來防止系統(tǒng)振蕩時(shí)誤啓動(dòng)。 返回 positive sequence