描述
?直流系統(tǒng)的維護(hù)應(yīng)當(dāng)注重強(qiáng)調(diào)其保障性能。例如工作人員在直流系統(tǒng)的維護(hù)過程中應(yīng)當(dāng)首先確定一個額定直流電壓系統(tǒng)并且還需要按照設(shè)備運(yùn)行的實(shí)際需求情況確定蓄電池的容量值，從而能夠有效的保證母電的合理供應(yīng)。其次，工作人員在直流系統(tǒng)的維護(hù)過程中應(yīng)當(dāng)將充電設(shè)備的數(shù)值進(jìn)行反復(fù)的確認(rèn)，并且在這一巡視過程中應(yīng)當(dāng)仔細(xì)的確認(rèn)變壓器的運(yùn)行溫度，當(dāng)發(fā)現(xiàn)溫度偏高或者變壓器異響時則需要及時采取相應(yīng)處理措施來確保直流系統(tǒng)整體運(yùn)行質(zhì)量得到保障。因?yàn)槌潆娧b置與蓄電池都是直流系統(tǒng)中容易出現(xiàn)問題的裝置，因此工作人員在進(jìn)行直流系統(tǒng)的檢修時應(yīng)當(dāng)將充電裝置和蓄電池作為其檢修的重點(diǎn)來進(jìn)行。其次，工作人員在進(jìn)行直流系統(tǒng)的檢修過程中應(yīng)當(dāng)注重查看其顯示數(shù)據(jù)是否存在異常情況，如果存在異常情況則工作人員需要對于設(shè)備的照明情況、通風(fēng)情況和空氣干燥程度進(jìn)行數(shù)值化的分析，從而能夠確認(rèn)其是否符合相應(yīng)的標(biāo)準(zhǔn)要求。與此同時，工作人員在進(jìn)行直流系統(tǒng)的檢修時應(yīng)當(dāng)仔細(xì)檢查絕緣表面的清潔情況，觀察是否有顆?；蛘邏m埃，如果發(fā)現(xiàn)有污點(diǎn)及時清理，從而能夠在此基礎(chǔ)上切實(shí)的減少直流系統(tǒng)中事故的發(fā)生概率。設(shè)定變頻器的最大輸出頻率、基頻、設(shè)置轉(zhuǎn)矩特性。通用變頻器均備有多條VPf曲線供用戶選擇,用戶在使用時應(yīng)根據(jù)負(fù)載的性質(zhì)選擇合適的VPf曲線。如果是風(fēng)機(jī)和泵類負(fù)載,要將變頻器的轉(zhuǎn)矩運(yùn)行代碼設(shè)置成變轉(zhuǎn)矩和降轉(zhuǎn)矩運(yùn)行特性。為了改善變頻器啟動時的低速性能,使電機(jī)輸出的轉(zhuǎn)矩能滿足生產(chǎn)負(fù)載啟動的要求,要調(diào)整啟動轉(zhuǎn)矩。在異步電機(jī)變頻調(diào)速系統(tǒng)中,轉(zhuǎn)矩的控制較復(fù)雜。在低頻段,由于電阻、漏電抗的影響不容忽略,若仍保持VPf為常數(shù),則磁通將減小,進(jìn)而減小了電機(jī)的輸出轉(zhuǎn)矩。為此,在低頻段要對電壓進(jìn)行適當(dāng)補(bǔ)償以提升轉(zhuǎn)矩。一般變頻器均由用戶進(jìn)行人工設(shè)定補(bǔ)償。
產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢價格，大量現(xiàn)貨。
主營DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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