20BM090BXDT0 R12A831802

20BM090BXDT0 R12A831802

3-533-0033G

20BM090BXDT0 R12A831802

異步電動(dòng)機(jī)又稱感應(yīng)電動(dòng)機(jī)，是由氣隙旋轉(zhuǎn)磁場(chǎng)與轉(zhuǎn)子繞組感應(yīng)電流相互作用產(chǎn)生電磁轉(zhuǎn)矩，從而實(shí)現(xiàn)機(jī)電能量轉(zhuǎn)換為機(jī)械能量的一種交流電機(jī)。三相異步電機(jī)主要用作電動(dòng)機(jī)，拖動(dòng)各種生產(chǎn)機(jī)械，例如：風(fēng)機(jī)、泵、壓縮機(jī)、機(jī)床、輕工及礦山機(jī)械、農(nóng)業(yè)生產(chǎn)中的脫粒機(jī)和粉碎機(jī)、農(nóng)副產(chǎn)品中的加工機(jī)械等等。 結(jié)構(gòu)簡(jiǎn)單、制造容易、價(jià)格低廉、運(yùn)行可靠、堅(jiān)固耐用、運(yùn)行效率較高并具有適用的工作特性。

　　三相異步電機(jī)（Triple-phase asynchronous motor）是靠同時(shí)接入380V三相交流電源（相位差120度）供電的一類電動(dòng)機(jī)，由于三相異步電機(jī)的轉(zhuǎn)子與定子旋轉(zhuǎn)磁場(chǎng)以相同的方向、不同的轉(zhuǎn)速成旋轉(zhuǎn)，存在轉(zhuǎn)差率，所以叫三相異步電機(jī)。

　　當(dāng)電動(dòng)機(jī)的三相定子繞組 通入三相對(duì)稱交流電后，將產(chǎn)生一個(gè)旋轉(zhuǎn)磁場(chǎng)，該旋轉(zhuǎn)磁場(chǎng)切割轉(zhuǎn)子繞組，從而在轉(zhuǎn)子繞組中產(chǎn)生感應(yīng)電流（轉(zhuǎn)子繞組是閉合通路），載流的轉(zhuǎn)子導(dǎo)體在定子旋轉(zhuǎn)磁場(chǎng)作用下將產(chǎn)生電磁力，從而在電機(jī)轉(zhuǎn)軸上形成電磁轉(zhuǎn)矩，驅(qū)動(dòng)電動(dòng)機(jī)旋轉(zhuǎn)，并且電機(jī)旋轉(zhuǎn)方向與旋轉(zhuǎn)磁場(chǎng)方向相同。

　　當(dāng)導(dǎo)體在磁場(chǎng)內(nèi)切割磁力線時(shí)，在導(dǎo)體內(nèi)產(chǎn)生感應(yīng)電流，“感應(yīng)電機(jī)”的名稱由此而來(lái)。感應(yīng)電流和磁場(chǎng)的聯(lián)合作用向電機(jī)轉(zhuǎn)子施加驅(qū)動(dòng)力。

　　我們讓閉合線圈ABCD在磁場(chǎng)B內(nèi)圍繞軸xy旋轉(zhuǎn)。如果沿順時(shí)針?lè)较蜣D(zhuǎn)動(dòng)磁場(chǎng)，閉合線圈經(jīng)受可變磁通量，產(chǎn)生感應(yīng)電動(dòng)勢(shì)，該電動(dòng)勢(shì)會(huì)產(chǎn)生感應(yīng)電流（法拉第定律）。根據(jù)楞次定律，電流的方向?yàn)椋焊袘?yīng)電流產(chǎn)生的效果總是要阻礙引起感應(yīng)電流的原因。因此，每個(gè)導(dǎo)體承受相對(duì)于感應(yīng)磁場(chǎng)的運(yùn)動(dòng)方向相反的洛侖茲力F。

Fu Zhou ZhuoKai  Electric Co., Ltd.

福州卓凱電子科技有限公司

【誠(chéng)信】 【質(zhì)量保證】  【價(jià)格優(yōu)惠】   

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我公司大量現(xiàn)貨歐姆龍，倍加福，橫河川儀，abb,施耐德等國(guó)外多家品牌，產(chǎn)品涉及變頻器，儀器儀表，變送器，可編程控制器plc和人機(jī)界面，工控機(jī)及氣動(dòng)閥門等。

聯(lián)系人【王工】                   

電話【059162182535】【15506917382】

e-mail：【583745937@qq.com】

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