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公司名稱：宇創(chuàng)自動(dòng)化設(shè)備（福建）有限公司
聯(lián)系人：張致遠(yuǎn)
手機(jī)：18059831031
電話：0592-6533083
傳真：0592-6535181
QQ:61978772
E-mail:61978772@qq.com
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、大功率并且為風(fēng)機(jī)/泵類負(fù)載；
第二、裝置本身具有節(jié)電功能（軟件支持）；
第三、長(zhǎng)期連續(xù)運(yùn)行。
這是體現(xiàn)節(jié)電效果的三個(gè)條件。除此之外，無(wú)所謂節(jié)不節(jié)電，沒(méi)有什么意義。如果不加前提條件的說(shuō)變頻器工頻運(yùn)行節(jié)能，就是夸大或是商業(yè)炒作。知道了原委，你會(huì)巧妙的利用他為你服務(wù)。一定要注意使用場(chǎng)合和使用條件才好正確應(yīng)用，否則就是盲從、輕信而“受騙上當(dāng)”。逆變器
同整流器相反，逆變器是將直流功率變換為所要求頻率的交流功率，以所確定的時(shí)間使6個(gè)開(kāi)關(guān)器件導(dǎo)通、關(guān)斷就可以得到3相交流輸出。以電壓型pwm逆變器為例示出開(kāi)關(guān)時(shí)間和電壓波形。逆變器
同整流器相反，逆變器是將直流功率變換為所要求頻率的交流功率，以所確定的時(shí)間使6個(gè)開(kāi)關(guān)器件導(dǎo)通、關(guān)斷就可以得到3相交流輸出。以電壓型pwm逆變器為例示出開(kāi)關(guān)時(shí)間和電壓波形。當(dāng)郜林右腳掄起，將球射入球門左下角的時(shí)候，我們的心中是如釋重負(fù)。皮球滾過(guò)門線前一秒，空氣還是凝重的。上半場(chǎng)中國(guó)隊(duì)僅僅2次打門，一次是郜林的點(diǎn)球，另一次是臨近半場(chǎng)休息時(shí)候武磊(微博 數(shù)據(jù))的打門。而我們的對(duì)手約旦呢？10次！半場(chǎng)10次打門的數(shù)據(jù)，也證明了約旦其實(shí)更勝一籌。
