防爆電機啓動困難(nán),加負(fù)載後不能升至(zhì)額定(dìng)轉速的原(yuán)因和(hé)解(jiě)決辦法如下(xià):
防爆電機
電源電壓低:電(diàn)源電(diàn)壓太低(dī)時(shí),與供電部門聯系解(jiě)決(jué),若線路(lù)壓降(jiàng)大,可(kě)改用(yòng)粗電纜。籠型轉(zhuǎn)子開焊或斷(duàn)條:用開口變壓器(qì)或其(qí)他儀器檢查。對(duì)銅條(tiáo)轉子(zǐ)可以補焊,鑄鋁(lǚ)轉子則宜重鑄(zhù)。繞線轉子(zǐ)一相(xiàng)斷路(lù):用校(xiào)驗燈(dēng)、萬用表找(zhǎo)出斷(duàn)路處後修複。繞(rào)線轉子(zǐ)電刷(shuā)或(huò)啓動變阻器接(jiē)觸不(bú)良(liáng):檢(jiǎn)修電(diàn)刷與啓動變阻器的接觸(chù)部位。定子繞(rào)組匝數(shù)多和(hé)定(dìng)子繞組(zǔ)節距不(bú)合适:調整定子繞組。定、轉子繞組有局(jú)部線圈接錯或接反(fǎn):按設(shè)計資料複查(chá),重新接線。
防(fáng)爆電機
繞(rào)線轉(zhuǎn)子電刷與(yǔ)集電(diàn)環接觸不(bú)良:調(diào)整刷壓,按(àn)集電(diàn)環(huán)外圓弧(hú)度磨(mó)電(diàn)刷(shuā)接觸(chù)表(biǎo)面,以(yǐ)增加接(jiē)觸面(miàn)積(圖\文(wén)
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中譯英:
explosion proof motor start difficulties, adding loads cannot be rated speed to cause and solution is as follows: explosion-proof motor with low power supply voltage: power when the voltage is too low, and the power supply departments to solve, if the line voltage drop is big, can use thick cable. cage type rotor welding or breaking: opening of transformer or other instrument check. for copper strip rotor can be welding, cast aluminum rotor are advised to recast. wound rotor phase breaker: check lamp, multimeter identify circuit after repair. wound rotor brush or starting rheostat bad contact: maintenance of the brush and the contact position of starting rheostat. stator winding, and the stator winding pitch: not suitable adjustment of stator winding. a local coil, rotor winding fault or reverse : according to design data review, new wiring. explosion proof motor winding rotor collector ring brush and bad contact: adjust the brush pressure, according to the collector ring circular arc grinding brush contact surface, so as to increase the contact area.
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