“看到(dao)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)出(chu)線(xian)(xian)接頭處閃火(huo)花(hua)而關(guan)(guan)(guan)(guan)(guan)(guan)了電(dian)(dian)(dian)(dian)(dian)阻爐變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)就正常(chang)了”，這(zhe)是明顯接線(xian)(xian)端(duan)子的(de)松動而引起(qi)的(de)，應(ying)及時(shi)停電(dian)(dian)(dian)(dian)(dian)處理好接觸不好的(de)部位。另外變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)正常(chang)運行時(shi)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)中變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)如(ru)何選型(xing)按磁(ci)芯Ae面積算(suan)(suan)(suan)功率(lv)(lv)選型(xing)的(de)。考(kao)慮到(dao)過emi選特殊(shu)形狀的(de)磁(ci)芯。沒(mei)要(yao)求的(de)。只要(yao)功率(lv)(lv)夠用就可以(yi)了。反(fan)激開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)的(de)設(she)計步驟誰(shui)懂計算(suan)(suan)(suan)設(she)計步驟如(ru)下：1、根據(ju)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)設(she)計要(yao)求，計算(suan)(suan)(suan)出(chu)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)的(de)功率(lv)(lv)。2、根據(ju)這(zhe)個功率(lv)(lv)，開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)的(de)工作(zuo)頻率(lv)(lv)，選擇(ze)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)的(de)磁(ci)芯，從而確定Ae、Le等(deng)(deng)磁(ci)芯參數；3、根據(ju)設(she)計開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)時(shi)確定的(de)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)的(de)初(chu)(chu)(chu)級電(dian)(dian)(dian)(dian)(dian)感值(zhi)Lp、Ae、磁(ci)芯的(de)Bmax、初(chu)(chu)(chu)級峰值(zhi)電(dian)(dian)(dian)(dian)(dian)流(liu)Ippk，計算(suan)(suan)(suan)出(chu)初(chu)(chu)(chu)級圈(quan)數Np_min=(Lp*Ippk)/(B_max×Ae)4、根據(ju)你要(yao)求的(de)輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)。計算(suan)(suan)(suan)次(ci)級輸(shu)(shu)出(chu)圈(quan)數,反(fan)饋線(xian)(xian)圈(quan)圈(quan)數。5、根據(ju)電(dian)(dian)(dian)(dian)(dian)流(liu)，選擇(ze)線(xian)(xian)徑；6、校(xiao)核開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)設(she)計后的(de)窗口繞線(xian)(xian)，是否(fou)合乎要(yao)求。如(ru)何檢測開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)的(de)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)的(de)好壞(huai)(huai)(huai)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)的(de)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)故障(zhang)率(lv)(lv)較(jiao)小，損(sun)(sun)壞(huai)(huai)(huai)的(de)很少。但也不是jue對(dui)的(de)。開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)一般損(sun)(sun)壞(huai)(huai)(huai)較(jiao)多的(de)是開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)管，輸(shu)(shu)入整流(liu)管，輸(shu)(shu)出(chu)整流(liu)管，濾波電(dian)(dian)(dian)(dian)(dian)容。如(ru)果輸(shu)(shu)入整流(liu)有(you)(you)300V左(zuo)右的(de)高(gao)壓(ya)(ya)(ya)，并且開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(guan)管沒(mei)有(you)(you)損(sun)(sun)壞(huai)(huai)(huai)，偏(pian)置相關(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)路(lu)沒(mei)問(wen)題，電(dian)(dian)(dian)(dian)(dian)路(lu)不起(qi)振不工作(zuo)，應(ying)重點檢查(cha)輸(shu)(shu)出(chu)整流(liu)管等(deng)(deng)電(dian)(dian)(dian)(dian)(dian)路(lu)。12. 電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)可以(yi)將(jiang)高(gao)壓(ya)(ya)(ya)輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)路(lu)的(de)電(dian)(dian)(dian)(dian)(dian)能降低到(dao)適用于家庭和(he)商業用電(dian)(dian)(dian)(dian)(dian)的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)等(deng)(deng)級。浙(zhe)江空調電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)哪(na)家好

做(zuo)如(ru)下(xia)幾種(zhong)狀態測(ce)試：（1）初級(ji)(ji)(ji)(ji)(ji)繞(rao)組(zu)(zu)與(yu)(yu)次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)繞(rao)組(zu)(zu)之間的(de)(de)電(dian)(dian)(dian)阻值(zhi)；（2）初級(ji)(ji)(ji)(ji)(ji)繞(rao)組(zu)(zu)與(yu)(yu)外(wai)殼(ke)之間的(de)(de)電(dian)(dian)(dian)阻值(zhi)；（3）次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)繞(rao)組(zu)(zu)與(yu)(yu)外(wai)殼(ke)之間的(de)(de)電(dian)(dian)(dian)阻值(zhi)。上述測(ce)試結果分(fen)出(chu)現三種(zhong)情(qing)況：（1）阻值(zhi)為(wei)(wei)無(wu)(wu)窮大：正(zheng)常(chang)(chang)；（2）阻值(zhi)為(wei)(wei)零：有(you)短路性(xing)故障(zhang)；（3）阻值(zhi)小(xiao)于(yu)(yu)無(wu)(wu)窮大，但大于(yu)(yu)零：有(you)漏電(dian)(dian)(dian)性(xing)故障(zhang)。二、電(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)(qi)(qi)的(de)(de)檢測(ce)：1、通(tong)過觀察變(bian)(bian)壓(ya)器(qi)(qi)(qi)的(de)(de)外(wai)貌來檢查其是否(fou)(fou)(fou)有(you)明顯異常(chang)(chang)現象(xiang)。如(ru)線圈引(yin)線是否(fou)(fou)(fou)斷(duan)裂，脫焊，絕緣(yuan)材料是否(fou)(fou)(fou)有(you)燒焦痕跡，鐵芯緊固螺(luo)桿是否(fou)(fou)(fou)有(you)松動(dong)，硅鋼片有(you)無(wu)(wu)銹蝕，繞(rao)組(zu)(zu)線圈是否(fou)(fou)(fou)有(you)外(wai)露等。2、絕緣(yuan)性(xing)測(ce)試。用(yong)萬用(yong)表R×10k擋(dang)分(fen)別測(ce)量鐵芯與(yu)(yu)初級(ji)(ji)(ji)(ji)(ji)，初級(ji)(ji)(ji)(ji)(ji)與(yu)(yu)各(ge)次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)、鐵芯與(yu)(yu)各(ge)次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)、靜電(dian)(dian)(dian)屏蔽(bi)層與(yu)(yu)衩(cha)次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)、次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)各(ge)繞(rao)組(zu)(zu)間的(de)(de)電(dian)(dian)(dian)阻值(zhi)，萬用(yong)表指(zhi)針均(jun)應指(zhi)在無(wu)(wu)窮大位置(zhi)不(bu)動(dong)。否(fou)(fou)(fou)則(ze)，說明變(bian)(bian)壓(ya)器(qi)(qi)(qi)絕緣(yuan)性(xing)能不(bu)良。3、線圈通(tong)斷(duan)的(de)(de)檢測(ce)。將(jiang)萬用(yong)表置(zhi)于(yu)(yu)R×1擋(dang)，測(ce)試中，若(ruo)某個繞(rao)組(zu)(zu)的(de)(de)電(dian)(dian)(dian)阻值(zhi)為(wei)(wei)無(wu)(wu)窮大，則(ze)說明此繞(rao)組(zu)(zu)有(you)斷(duan)路性(xing)故障(zhang)。4、判別初、次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)線圈。電(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)(qi)(qi)初級(ji)(ji)(ji)(ji)(ji)引(yin)腳(jiao)和次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)引(yin)腳(jiao)一般都是分(fen)別從兩側引(yin)出(chu)的(de)(de)，并且初級(ji)(ji)(ji)(ji)(ji)繞(rao)組(zu)(zu)多標(biao)有(you)220V字樣，次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)繞(rao)組(zu)(zu)則(ze)標(biao)出(chu)額定電(dian)(dian)(dian)壓(ya)值(zhi)，如(ru)15V、24V、35V等。再根據這些(xie)標(biao)記(ji)進行識別。5、空載電(dian)(dian)(dian)流的(de)(de)檢測(ce)。（1）直(zhi)接測(ce)量法。將(jiang)次(ci)(ci)(ci)級(ji)(ji)(ji)(ji)(ji)所(suo)有(you)繞(rao)組(zu)(zu)全部開(kai)路，把萬用(yong)表置(zhi)于(yu)(yu)交(jiao)流電(dian)(dian)(dian)流擋(dang)（500mA，串入(ru)初級(ji)(ji)(ji)(ji)(ji)繞(rao)組(zu)(zu)。福建(jian)洗(xi)衣機電(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)(qi)(qi)代加工16. 電(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)(qi)(qi)在建(jian)筑設備(bei)中用(yong)于(yu)(yu)提供穩定和安全的(de)(de)電(dian)(dian)(dian)能供應。

矽(xi)鋼片(pian)(pian)含硅量的(de)(de)大小(xiao)(xiao)對變(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)質(zhi)量影(ying)響不(bu)(bu)是(shi)很(hen)大，而有(you)(you)(you)取向(xiang)和無取向(xiang)則和鐵(tie)芯的(de)(de)型(xing)(xing)號(hao)有(you)(you)(you)關(guan)(guan)系。其次(ci)，即使(shi)是(shi)同樣(yang)型(xing)(xing)號(hao)的(de)(de)鐵(tie)芯如果你(ni)工(gong)藝(yi)(yi)處(chu)理(li)不(bu)(bu)好(hao)，那品質(zhi)差別也是(shi)很(hen)大的(de)(de)，其差別有(you)(you)(you)時甚至高達百分(fen)之四五十(shi)。好(hao)的(de)(de)鐵(tie)芯而同樣(yang)的(de)(de)材(cai)料(liao)(liao)其熱(re)(re)(re)(re)處(chu)理(li)和線卷繞制(zhi)(zhi)工(gong)藝(yi)(yi)十(shi)分(fen)關(guan)(guan)鍵，良好(hao)的(de)(de)熱(re)(re)(re)(re)處(chu)理(li)只需很(hen)小(xiao)(xiao)的(de)(de)10mA激磁(ci)電(dian)流(liu)就(jiu)能(neng)達到15000高斯，而不(bu)(bu)好(hao)的(de)(de)熱(re)(re)(re)(re)處(chu)理(li)則可(ke)能(neng)要(yao)50mA的(de)(de)激磁(ci)電(dian)流(liu)才能(neng)達到相應的(de)(de)15000高斯，這二者之間的(de)(de)懸(xuan)殊差別是(shi)很(hen)大的(de)(de)。從(cong)專業的(de)(de)角度來判斷鐵(tie)芯的(de)(de)好(hao)與不(bu)(bu)好(hao)，主(zhu)要(yao)是(shi)通過激磁(ci)電(dian)流(liu)、鐵(tie)損耗(hao)、飽和參數(shu)幾項指(zhi)標來進行綜合性(xing)評價。四、環(huan)型(xing)(xing)電(dian)源(yuan)變(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)帶式硅鋼片(pian)(pian)若采用了拼(pin)接(jie)(jie)工(gong)藝(yi)(yi)，是(shi)不(bu)(bu)是(shi)就(jiu)意(yi)味著品質(zhi)肯定(ding)不(bu)(bu)好(hao)?還(huan)不(bu)(bu)能(neng)一(yi)概而論，但是(shi)拼(pin)接(jie)(jie)的(de)(de)斷位(wei)頭不(bu)(bu)易太(tai)多，因為多一(yi)個(ge)斷位(wei)就(jiu)多了一(yi)個(ge)漏磁(ci)點(dian)，所(suo)以接(jie)(jie)頭點(dian)不(bu)(bu)要(yao)超過2–3個(ge)。制(zhi)(zhi)作(zuo)工(gong)藝(yi)(yi)上凡(fan)斷頭拼(pin)接(jie)(jie)均要(yao)予先經過酸(suan)洗處(chu)理(li)，但制(zhi)(zhi)造好(hao)的(de)(de)音響器(qi)材(cai)的(de)(de)環(huan)型(xing)(xing)變(bian)壓(ya)(ya)(ya)器(qi)，嚴(yan)格來講還(huan)是(shi)采用無拼(pin)接(jie)(jie)的(de)(de)矽(xi)鋼片(pian)(pian)為好(hao)，其工(gong)藝(yi)(yi)質(zhi)量會更有(you)(you)(you)保障。五、電(dian)源(yuan)變(bian)壓(ya)(ya)(ya)器(qi)中的(de)(de)硅鋼片(pian)(pian)材(cai)料(liao)(liao)有(you)(you)(you)什(shen)么講究?由于硅鋼在(zai)交(jiao)變(bian)磁(ci)場中的(de)(de)損耗(hao)很(hen)小(xiao)(xiao)，所(suo)以電(dian)源(yuan)變(bian)壓(ya)(ya)(ya)器(qi)主(zhu)要(yao)都是(shi)采用硅鋼片(pian)(pian)來作(zuo)磁(ci)性(xing)材(cai)料(liao)(liao)。硅鋼片(pian)(pian)可(ke)分(fen)為熱(re)(re)(re)(re)軋和冷軋兩(liang)類(lei)，冷軋硅鋼帶由于具(ju)有(you)(you)(you)較(jiao)高的(de)(de)導磁(ci)系數(shu)和較(jiao)低的(de)(de)損耗(hao)。

當初級繞組的(de)(de)(de)(de)(de)(de)(de)插頭插入220V交流(liu)市電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)，萬(wan)用(yong)表所指示(shi)的(de)(de)(de)(de)(de)(de)(de)便是空(kong)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)值。此值不應大于變(bian)(bian)壓(ya)器(qi)(qi)(qi)滿(man)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)(de)(de)(de)10%～20%。一般常見電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設備電(dian)(dian)(dian)(dian)(dian)(dian)源變(bian)(bian)壓(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)正(zheng)常空(kong)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)應在100mA左(zuo)右。如果超(chao)出(chu)(chu)太多，則說明變(bian)(bian)壓(ya)器(qi)(qi)(qi)有(you)短路(lu)性(xing)故障(zhang)。（2）間(jian)接(jie)測(ce)(ce)量(liang)法(fa)。在變(bian)(bian)壓(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)初級繞組中(zhong)串聯一個10?/5W的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻，次(ci)(ci)級仍(reng)全部空(kong)載(zai)。把萬(wan)用(yong)表撥至交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)擋。加電(dian)(dian)(dian)(dian)(dian)(dian)后，用(yong)兩表筆測(ce)(ce)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)阻R兩端的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)降U，然后用(yong)歐(ou)姆定律算出(chu)(chu)空(kong)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)I空(kong)，即I空(kong)=U/R。6、空(kong)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)(de)(de)(de)(de)(de)檢(jian)(jian)(jian)測(ce)(ce)。將電(dian)(dian)(dian)(dian)(dian)(dian)源變(bian)(bian)壓(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)初級接(jie)220V市電(dian)(dian)(dian)(dian)(dian)(dian)，用(yong)萬(wan)用(yong)表交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)接(jie)依次(ci)(ci)測(ce)(ce)出(chu)(chu)各(ge)繞組的(de)(de)(de)(de)(de)(de)(de)空(kong)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)值（U21、U22、U23、U24）應符合要求(qiu)值，允許誤差范圍(wei)一般為：高(gao)(gao)壓(ya)繞組≤±10%，低壓(ya)繞組≤±5%，帶中(zhong)心抽頭的(de)(de)(de)(de)(de)(de)(de)兩組對稱繞組的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)差應≤±2%。7、一般小功率電(dian)(dian)(dian)(dian)(dian)(dian)源變(bian)(bian)壓(ya)器(qi)(qi)(qi)允許溫(wen)升為40℃～50℃，如果所用(yong)絕(jue)緣材料(liao)質量(liang)較好，允許溫(wen)升還可提高(gao)(gao)。8、檢(jian)(jian)(jian)測(ce)(ce)判別各(ge)繞組的(de)(de)(de)(de)(de)(de)(de)同名端。在使用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)源變(bian)(bian)壓(ya)器(qi)(qi)(qi)時(shi)，有(you)時(shi)為了得到所需的(de)(de)(de)(de)(de)(de)(de)次(ci)(ci)級電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，可將兩個或(huo)多個次(ci)(ci)級繞組串聯起來(lai)使用(yong)。采用(yong)串聯法(fa)使用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)源變(bian)(bian)壓(ya)器(qi)(qi)(qi)時(shi)，參加串聯的(de)(de)(de)(de)(de)(de)(de)各(ge)繞組的(de)(de)(de)(de)(de)(de)(de)同名端必須正(zheng)確連接(jie)，不能(neng)(neng)搞(gao)錯。否則，變(bian)(bian)壓(ya)器(qi)(qi)(qi)不能(neng)(neng)正(zheng)常工作(zuo)。I.電(dian)(dian)(dian)(dian)(dian)(dian)源變(bian)(bian)壓(ya)器(qi)(qi)(qi)短路(lu)性(xing)故障(zhang)的(de)(de)(de)(de)(de)(de)(de)綜合檢(jian)(jian)(jian)測(ce)(ce)判別。22. 電(dian)(dian)(dian)(dian)(dian)(dian)源變(bian)(bian)壓(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)智能(neng)(neng)化(hua)和(he)自動化(hua)可以提升其(qi)控制和(he)監測(ce)(ce)功能(neng)(neng)，實現(xian)遠(yuan)程操(cao)作(zuo)和(he)管理。

如(ru)低矮形RM磁(ci)(ci)(ci)芯(xin)(xin)，PQ型(xing)磁(ci)(ci)(ci)芯(xin)(xin)等(deng)），，均可降低熱(re)阻提(ti)高通(tong)(tong)過功(gong)率。7．磁(ci)(ci)(ci)芯(xin)(xin)總損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)軟磁(ci)(ci)(ci)鐵氧(yang)體(ti)磁(ci)(ci)(ci)芯(xin)(xin)總損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)通(tong)(tong)常(chang)(chang)(chang)細(xi)分為三(san)種(zhong)(zhong)類型(xing)：磁(ci)(ci)(ci)滯損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)Ph、渦(wo)流損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)Pe和(he)剩余損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)Pr。每種(zhong)(zhong)損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)貢獻的(de)(de)(de)頻(pin)(pin)率范圍是(shi)(shi)不同(tong)的(de)(de)(de)，磁(ci)(ci)(ci)滯損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)正比于(yu)直(zhi)流磁(ci)(ci)(ci)滯回線(xian)的(de)(de)(de)面積，并與頻(pin)(pin)率成(cheng)線(xian)性關(guan)系，即(ji)Ph=f∮BdH（7）這里，∮BdH等(deng)于(yu)蕞大(da)磁(ci)(ci)(ci)通(tong)(tong)B下(xia)測(ce)得的(de)(de)(de)直(zhi)流磁(ci)(ci)(ci)滯回線(xian)的(de)(de)(de)等(deng)值(zhi)能。對于(yu)工(gong)作(zuo)在頻(pin)(pin)率100khz以下(xia)的(de)(de)(de)功(gong)率鐵氧(yang)體(ti)磁(ci)(ci)(ci)芯(xin)(xin)，降低磁(ci)(ci)(ci)滯損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)是(shi)(shi)蕞重(zhong)要的(de)(de)(de)。為獲得低損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)，要選擇鐵氧(yang)體(ti)成(cheng)分具(ju)有(you)蕞小矯(jiao)頑(wan)力Hc和(he)蕞小各向異性常(chang)(chang)(chang)數(shu)K，理想情況(kuang)是(shi)(shi)各向異性補償點（即(ji)K≈0）位于(yu)變(bian)壓器工(gong)作(zuo)溫度（約80～100℃）。另外，此(ci)成(cheng)分應有(you)低的(de)(de)(de)磁(ci)(ci)(ci)致伸(shen)縮常(chang)(chang)(chang)數(shu)λ，工(gong)藝上要避免內外應力和(he)夾(jia)雜物。采(cai)用大(da)而均勻晶粒(li)是(shi)(shi)有(you)利的(de)(de)(de)，因(yin)為Hc∞D-1(D是(shi)(shi)晶粒(li)尺寸(cun))。關(guan)于(yu)渦(wo)流損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)Pe可用下(xia)式表示(shi)：Pe=Cef2B2/ρ（8）這里，Ce是(shi)(shi)尺寸(cun)常(chang)(chang)(chang)數(shu)，ρ是(shi)(shi)在測(ce)量(liang)頻(pin)(pin)率f時的(de)(de)(de)電(dian)阻率。隨(sui)著(zhu)開(kai)關(guan)電(dian)源(yuan)(yuan)小型(xing)化(hua)和(he)工(gong)作(zuo)頻(pin)(pin)率的(de)(de)(de)提(ti)高，由于(yu)Pe∞f2，因(yin)而降低渦(wo)流損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)對高頻(pin)(pin)電(dian)源(yuan)(yuan)變(bian)壓器更為重(zhong)要。隨(sui)著(zhu)頻(pin)(pin)率提(ti)高，渦(wo)流損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)在總損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)中所(suo)占比例逐步增(zeng)大(da)，當工(gong)作(zuo)頻(pin)(pin)率達(da)200～500kHz時，渦(wo)流損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)常(chang)(chang)(chang)常(chang)(chang)(chang)已占支(zhi)配地位。從圖(tu)7所(suo)示(shi)R2KB1材料磁(ci)(ci)(ci)芯(xin)(xin)總損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)（包括磁(ci)(ci)(ci)滯和(he)渦(wo)流損(sun)(sun)耗(hao)(hao)(hao)(hao)(hao)）與頻(pin)(pin)率關(guan)系實測(ce)曲線(xian)，可得到證(zheng)明。37. 電(dian)源(yuan)(yuan)變(bian)壓器的(de)(de)(de)技術培(pei)訓和(he)人才(cai)儲(chu)備對保障電(dian)力供(gong)應和(he)技術支(zhi)持具(ju)有(you)重(zhong)要意(yi)義。江(jiang)西(xi)三(san)相電(dian)源(yuan)(yuan)變(bian)壓器訂做價格

23. 電源(yuan)變壓器的節(jie)能技術應用(yong)可以減少其損耗和能源(yuan)浪費。浙江空調電源(yuan)變壓器哪家好

[2]電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)比(bi)(bi)較編輯一(yi)、電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)的(de)(de)(de)制(zhi)(zhi)作(zuo)中，線圈(quan)的(de)(de)(de)機器(qi)繞(rao)(rao)(rao)制(zhi)(zhi)和手(shou)工(gong)繞(rao)(rao)(rao)制(zhi)(zhi)各有(you)什(shen)么(me)優缺點?機器(qi)繞(rao)(rao)(rao)制(zhi)(zhi)電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)的(de)(de)(de)優點是(shi)(shi)(shi)效率(lv)高且外觀成形(xing)漂亮，但(dan)繞(rao)(rao)(rao)制(zhi)(zhi)高個子(zi)小(xiao)洞眼(yan)的(de)(de)(de)環(huan)型(xing)(xing)變(bian)(bian)壓(ya)器(qi)卻比(bi)(bi)較麻煩，而(er)(er)(er)且在(zai)絕緣處理工(gong)藝的(de)(de)(de)可(ke)靠性方面反(fan)不如手(shou)工(gong)繞(rao)(rao)(rao)制(zhi)(zhi)到位。手(shou)工(gong)繞(rao)(rao)(rao)制(zhi)(zhi)可(ke)以(yi)將(jiang)變(bian)(bian)壓(ya)器(qi)的(de)(de)(de)漏磁(ci)(ci)做得(de)非常小(xiao)，其(qi)在(zai)繞(rao)(rao)(rao)制(zhi)(zhi)過程中能(neng)(neng)針對線圈(quan)匝數的(de)(de)(de)布局(ju)隨時(shi)予以(yi)調整，所(suo)以(yi)真正(zheng)的(de)(de)(de)Hi–END變(bian)(bian)壓(ya)器(qi)一(yi)定是(shi)(shi)(shi)純手(shou)工(gong)繞(rao)(rao)(rao)制(zhi)(zhi)，純手(shou)工(gong)繞(rao)(rao)(rao)制(zhi)(zhi)的(de)(de)(de)缺點是(shi)(shi)(shi)效率(lv)低(di)、速度慢。二、環(huan)型(xing)(xing)、EI型(xing)(xing)、R型(xing)(xing)、C型(xing)(xing)幾種(zhong)電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)哪一(yi)種(zhong)好(hao)?它(ta)(ta)們各有(you)其(qi)優缺點而(er)(er)(er)不存在(zai)誰(shui)好(hao)之說，所(suo)以(yi)嚴格來講哪一(yi)種(zhong)電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)都可(ke)以(yi)做得(de)好(hao)。從結構上(shang)來講，環(huan)型(xing)(xing)能(neng)(neng)夠做到漏磁(ci)(ci)小(xiao)，但(dan)聲音聽感方面EI型(xing)(xing)則(ze)可(ke)以(yi)把(ba)中頻(pin)密度感做得(de)更好(hao)一(yi)些(xie)。單就磁(ci)(ci)飽和而(er)(er)(er)言，EI型(xing)(xing)要比(bi)(bi)環(huan)型(xing)(xing)強，但(dan)在(zai)效率(lv)上(shang)則(ze)環(huan)型(xing)(xing)又優于EI型(xing)(xing)。盡管如此(ci)，其(qi)問題(ti)的(de)(de)(de)關鍵還是(shi)(shi)(shi)在(zai)于你能(neng)(neng)不能(neng)(neng)揚長避短而(er)(er)(er)將(jiang)它(ta)(ta)們各自的(de)(de)(de)優點充分發(fa)揮(hui)出(chu)來，而(er)(er)(er)這才是(shi)(shi)(shi)做好(hao)電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)的(de)(de)(de)根本。進口放大器(qi)中，環(huan)型(xing)(xing)電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)的(de)(de)(de)應用仍然是(shi)(shi)(shi)主流，這基本說明(ming)了一(yi)個問題(ti)。發(fa)燒友對電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)的(de)(de)(de)評價要客觀公(gong)正(zheng)，你不能(neng)(neng)拿一(yi)個沒(mei)做好(hao)的(de)(de)(de)東西作(zuo)參考而(er)(er)(er)說它(ta)(ta)不好(hao)。有(you)人說環(huan)型(xing)(xing)電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)容(rong)易磁(ci)(ci)飽和。浙江空調電(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)器(qi)哪家好(hao)

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