有關(guān)感應電動機的中英對照翻譯-其他專業(yè)-資料下載頁
2025-01-19 12:21本頁面
【導讀】感應電動機的基本工作原理可以旋轉(zhuǎn)馬蹄形磁鐵和銅圓盤的實驗來說明。馬蹄鐵磁鐵旋轉(zhuǎn)時，穿過銅圓盤的移動磁場在盤中感應出渦旋電流。流的方向能夠引起圓盤跟隨馬蹄形磁鐵旋轉(zhuǎn)。根據(jù)右手定則將會產(chǎn)生渦旋電流。注意，導體的相對運動方向和磁場旋轉(zhuǎn)的方向相反。運用左手定責得出銅盤受到得力與磁鐵旋轉(zhuǎn)方向一致。旋轉(zhuǎn)磁場和銅盤間的速度之差稱為轉(zhuǎn)差率。轉(zhuǎn)差率對于感應式電動機的工作。實際電機中，它是通過空間上交替。布置繞組和時間相位上相互交替的激勵電壓實現(xiàn)的。這些鋼條在兩端通過銅短路環(huán)短路，短路環(huán)是采用纖接或焊。接的方式與銅條相連的。另一個與電動機容量有關(guān)的結(jié)構(gòu)特性是所采用的線圈組的類型。流電動機中，大多數(shù)線圈是散繞的。置在定子槽中，并將其端部繞置成菱形。這些線圈采用截面為矩形的導線構(gòu)成，將它們彎曲成型。在制作定子繞組時，線圈被做成適當?shù)某叽纾员銓⒄麄€線圈置。為每個線圈采用額外的絕緣措施。
【正文】 ch the transition between castaluminum and copper rotors takes place varies among motor manyfacturers， but virtually all rotors in motor sizes of several thousand horsepower and above are built with bartype rotors. Another construction feature dependent in motor size is the type of coil winding small and mediumsize ac motors， most coils are coils are made with round wire， which is wound into the stator slots and assumes a diamond shapr in the end turns； however， the wires are randomly located within a given coil， and hence the name “randomwound.” For large ac motors and particularly for highvoltagemotors， 2300V and above， formwould coils are coils are construted from rectangular wire， which is bent into shape around forms and them coil is formed to the proper size so that the plete coil can be inserted into the stator slots at the time the stator is wound coils are used for highvoltage windings because it is relatively easy to add extra insulation on the individual coils before inserting them into the stator.
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