電(dian)壓(ya)340--350，電(dian)流65--68，加熱作用太(tai)慢。有什么好辦(ban)法提高電(dian)壓(ya)嗎(ma)？

1、160KW的(de)變壓器用(yong)了(le)125A的(de)電流(liu)，那么也就(jiu)是只用(yong)了(le)近1半的(de)負載罷了(le)，這(zhe)(zhe)個情況電壓由410V～415V降到340V～350V這(zhe)(zhe)是不(bu)正常(chang)的(de)，從數據上看您這(zhe)(zhe)邊的(de)供電網還是非常(chang)不(bu)錯的(de)，這(zhe)(zhe)里要(yao)是線路太長，線損太大引起。

2、可以用電(dian)容(rong)補(bu)償嗎?工業上(shang)高壓(ya)電(dian)容(rong)補(bu)償，這(zhe)要是針對(dui)變壓(ya)器(qi)功率因數太低（補(bu)償前(qian)(qian)只有0.8左右），如(ru)果您(nin)的(de)變壓(ya)器(qi)之前(qian)(qian)沒有做無功補(bu)償，那么這(zhe)還是有作用的(de)，并且也(ye)定要補(bu)償，不然電(dian)力公(gong)司檢測出來(lai)會被罰款的(de)，但如(ru)1剖析，您(nin)這(zhe)邊要不是功率因數低造成，所以對(dui)于電(dian)壓(ya)的(de)上(shang)升作用不大。

3、50kw電(dian)(dian)磁加熱(re)器電(dian)(dian)流(liu)卻只有(you)65A～68A，依照這(zhe)個參數(shu)核算這(zhe)臺控制器連50KW都達不到，或許(xu)您被(bei)騙(pian)了(le)(le)，隨著電(dian)(dian)磁加熱(re)器行業的(de)(de)競爭劇烈，有(you)非(fei)常多不法的(de)(de)商家經常用小功率產(chan)品假(jia)充大功率產(chan)品再以相對較低的(de)(de)價(jia)(jia)格進行販賣，如用40KW超載運用假(jia)充50KW甚至60KW再以比商場正常50KW或許(xu)60KW的(de)(de)價(jia)(jia)了(le)(le)解到的(de)(de)數(shu)據。

在使用電磁加熱器時要注意(yi)什么(me)？

1、使用程要(yao)輕易拆除電磁(ci)加熱控制(zhi)板接(jie)導線(xian)接(jie)措(cuo)施防止觸電道保(bao)護措(cuo)施。

2、要(yao)定期(qi)清理(li)散熱(re)器保證(zheng)電磷(lin)感應加熱(re)器通風(feng)。

3、使用電(dian)(dian)磁加熱器應先按說明書繞線圈并檢查誤再接(jie)通電(dian)(dian)源。

4、保(bao)養清洗(xi)(xi)電(dian)磁(ci)(ci)加熱器前切斷電(dian)磁(ci)(ci)加熱器電(dian)源(yuan)清潔(jie)電(dian)磁(ci)(ci)加熱器外(wai)殼(ke)應(ying)用干凈(jing)抹布(bu)進行擦拭嚴禁用噴射(she)水流沖洗(xi)(xi)外(wai)殼(ke)及電(dian)器箱部。

5、要電磁加熱器安(an)裝潮濕環境防止(zhi)水蒸汽進(jin)入電箱易(yi)緣(yuan)介質表面凝結降低其(qi)緣(yuan)性(xing)能(neng)造(zao)漏電事故。

6、要經檢查電(dian)磁(ci)加熱(re)(re)器進(jin)風(feng)口(kou)及散(san)熱(re)(re)風(feng)扇(shan)防止進(jin)風(feng)口(kou)處堵(du)塞或散(san)熱(re)(re)風(feng)扇(shan)卡死避免熱(re)(re)停機保(bao)護。

如何選擇電磁加熱器保溫材料？

1、根據(ju)材料的耐(nai)溫(wen)等，選(xuan)擇耐(nai)溫(wen)比(bi)發熱體表面的加熱溫(wen)度高至少300度的保溫(wen)材料。

2、根(gen)據電磁加熱(re)控(kong)制器線圈布置的(de)(de)面積以及線圈與發熱(re)體的(de)(de)距離，選擇(ze)合(he)適導熱(re)系數的(de)(de)保溫材料。

3、根據線(xian)圈成(cheng)型要求(qiu)，選擇不同致密性和硬度的保溫材料。

4、根據(ju)現場的施工條件(jian)，選擇適(shi)合的保(bao)溫材料。

5、重要的條原則，就是要保證(zheng)經過上述(shu)選擇后，保溫(wen)棉表面的溫(wen)度在工作(zuo)過程中，盡可(ke)能(neng)低。高溫(wen)場合至(zhi)少要保持在100度以下。

哪些因素會導(dao)致(zhi)電磁加熱器發生故障？

：電(dian)(dian)(dian)磁加熱器電(dian)(dian)(dian)路(lu)設計不(bu)科學。目前，在大(da)(da)(da)功率電(dian)(dian)(dian)磁加熱電(dian)(dian)(dian)路(lu)系統中(zhong)，大(da)(da)(da)部(bu)分廠家采用(yong)(yong)過(guo)去的(de)傳統模擬3525或(huo)(huo)494電(dian)(dian)(dian)路(lu)，產(chan)生兩路(lu)或(huo)(huo)四路(lu)PWM，采用(yong)(yong)調(diao)頻方(fang)法(fa)驅動IGBT，改變諧振(zhen)回(hui)電(dian)(dian)(dian)流大(da)(da)(da)小來達到調(diao)節功率大(da)(da)(da)小的(de)目的(de)，再采用(yong)(yong)4046進(jin)行(xing)鎖相(xiang)控制，在工業上(shang)加熱應(ying)用(yong)(yong)已(yi)經很普遍，技術也(ye)(ye)比較成熟(shu)。但是，它的(de)硬件電(dian)(dian)(dian)路(lu)復(fu)雜，所(suo)以(yi)大(da)(da)(da)多體(ti)積龐(pang)大(da)(da)(da)，也(ye)(ye)不(bu)便于生產(chan)和調(diao)試，特別是容(rong)(rong)易(yi)由于所(suo)選用(yong)(yong)的(de)器件特性差異，致(zhi)使電(dian)(dian)(dian)源致(zhi)性差，工作中(zhong)生產(chan)的(de)高強的(de)電(dian)(dian)(dian)磁干(gan)擾時(shi)，鎖相(xiang)或(huo)(huo)保護部(bu)分容(rong)(rong)易(yi)失(shi)靈，容(rong)(rong)易(yi)造成故(gu)障。

二：電力器件布局不(bu)合理(li)(li)。在大(da)功(gong)率工業電磁加熱(re)主結(jie)構電路(lu)中，常(chang)(chang)為半橋(qiao)(qiao)電路(lu)和全(quan)橋(qiao)(qiao)電路(lu)，通(tong)常(chang)(chang)2-25KW功(gong)率別(bie)采用(yong)(yong)(yong)(yong)半橋(qiao)(qiao)電路(lu)，全(quan)橋(qiao)(qiao)電路(lu)可(ke)以(yi)實(shi)現20KW以(yi)上功(gong)率。般(ban)地，功(gong)率大(da)于(yu)(yu)25KW后，線圈的高頻電流比較(jiao)大(da)，發熱(re)比較(jiao)多，當(dang)主電路(lu)電力功(gong)率器件布局不(bu)合理(li)(li)時，可(ke)能會(hui)產生高強干擾，有可(ke)能使慮波電容、揩振電容或(huo)IGBT模(mo)塊(kuai)擊穿(chuan)。為了用(yong)(yong)(yong)(yong)戶的安裝安全(quan)考(kao)慮，般(ban)把(ba)半橋(qiao)(qiao)電路(lu)大(da)功(gong)率定為15KW，降低IGBT模(mo)塊(kuai)電流應力，當(dang)功(gong)率大(da)于(yu)(yu)20KW時，建議用(yong)(yong)(yong)(yong)戶選擇全(quan)橋(qiao)(qiao)主電路(lu)結(jie)構。當(dang)然，在特定的應用(yong)(yong)(yong)(yong)場(chang)合，需要(yao)加熱(re)面積比小，功(gong)率密度比較(jiao)大(da)時，我(wo)們合理(li)(li)科學(xue)地可(ke)以(yi)幫助用(yong)(yong)(yong)(yong)戶把(ba)半橋(qiao)(qiao)電路(lu)安全(quan)做(zuo)到30KW。

電磁加熱器的全橋和半橋的應用表(biao)現的同(tong)異：

、據各自的電路原(yuan)理的差(cha)別決(jue)定：相同：均可達到(dao)使得(de)相應料(liao)筒(tong)自身快(kuai)速發熱產生高(gao)溫，用于加(jia)工(gong)塑(su)料(liao)的功用。

二、功率段表現(xian)上不同：

1、全橋：對應檔(dang)位(wei)功(gong)率(lv)分配清晰、明確，反應迅速。

2、半橋：對應檔位(wei)功率(lv)分配較模(mo)糊，反(fan)應相對合理。

三、發熱面表現上：

1、全橋：因可負載負荷較(jiao)高，發熱(re)面較(jiao)大、較(jiao)均勻、層(ceng)次感能(neng)做到循序遞減，火焰仿真效果明顯(xian)。

2、半橋：因可負(fu)載負(fu)荷較(jiao)低，發熱面較(jiao)小(xiao)、均勻性(xing)稍遜、層次感分(fen)明(ming)，火(huo)焰仿真效(xiao)果稍遜。

電磁(ci)加(jia)熱器(qi)多溫區控(kong)制就是有兩種：

第種(zhong)：是臺電磁加熱控(kong)制器控(kong)制多(duo)組線(xian)圈(quan)。

第(di)二種(zhong):是(shi)臺(tai)設(she)備(bei)使用多個(ge)電磁(ci)加熱(re)控制器分別控制多個(ge)線(xian)圈(quan)。現在例如注塑機(ji)(ji)，拉絲機(ji)(ji)，吹膜機(ji)(ji)，擠(ji)出機(ji)(ji)等機(ji)(ji)械設(she)備(bei)，料管加熱(re)部分都(dou)需要(yao)幾(ji)個(ge)不同(tong)溫度(du)才能滿足生產(chan)，這時候(hou)就要(yao)使用到電磁(ci)加熱(re)器多溫區來控制。

第三種：臺電(dian)磁加(jia)熱控制器控制多組線(xian)圈比(bi)較(jiao)少用，因為如果主機旦出現故障，整個(ge)幾個(ge)溫(wen)度都將(jiang)無法加(jia)熱，影響(xiang)正規生(sheng)產，而且維護(hu)起(qi)來(lai)也是比(bi)較(jiao)麻煩的(de)。

第(di)四(si)種：多個電磁加熱控(kong)制器(qi)分別控(kong)制獨立(li)線圈，這樣不但(dan)便于管(guan)理，而(er)且加熱非常均勻，維護(hu)起來也是十(shi)分方便的。

電磁加熱器加熱速度(du)慢(man)和(he)以(yi)下幾個(ge)點(dian)有關：

1、與(yu)生產的(de)產量有關，產量大的(de)，加熱的(de)時間就會(hui)比較長。

2、和功率(lv)的大小(xiao)有關，功率(lv)小(xiao)的加熱速度就會慢些，功率(lv)大的自然就快些。

3、和加(jia)熱的溫度(du)也有關，溫度(du)要(yao)求越高，加(jia)熱的時間(jian)就(jiu)會長些。

4、和環境的溫(wen)度有關，環境的溫(wen)度非常(chang)低(di)的話，加熱的時間也(ye)會(hui)長些。

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)加(jia)(jia)熱(re)器工作原(yuan)理(li)：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)加(jia)(jia)熱(re)是(shi)利用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)感應原(yuan)理(li)將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能轉(zhuan)換(huan)為(wei)(wei)熱(re)能的(de)(de)(de)(de)(de)能量轉(zhuan)換(huan)過程，由(you)整流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路將(jiang)50/60Hz的(de)(de)(de)(de)(de)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)轉(zhuan)變(bian)(bian)成直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，再經過功(gong)率控制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路將(jiang)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)轉(zhuan)換(huan)成頻(pin)(pin)(pin)率為(wei)(wei)20～40kHz的(de)(de)(de)(de)(de)高(gao)(gao)頻(pin)(pin)(pin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，當高(gao)(gao)速(su)變(bian)(bian)化(hua)的(de)(de)(de)(de)(de)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)通過線(xian)圈時，線(xian)圈會產(chan)生高(gao)(gao)速(su)變(bian)(bian)化(hua)的(de)(de)(de)(de)(de)磁(ci)場，磁(ci)場內的(de)(de)(de)(de)(de)交(jiao)變(bian)(bian)磁(ci)力線(xian)通過金(jin)屬管(guan)道時（導(dao)(dao)磁(ci)、導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)材料），管(guan)壁(bi)體內產(chan)生無(wu)數的(de)(de)(de)(de)(de)小渦流(liu)(liu)(liu)(liu)(liu)(liu)，使(shi)輸油(you)管(guan)道的(de)(de)(de)(de)(de)管(guan)壁(bi)本身自行(xing)發熱(re)與原(yuan)油(you)進行(xing)熱(re)交(jiao)換(huan)，達到(dao)加(jia)(jia)熱(re)原(yuan)油(you)的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)。變(bian)(bian)頻(pin)(pin)(pin)器是(shi)高(gao)(gao)頻(pin)(pin)(pin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)加(jia)(jia)熱(re)器的(de)(de)(de)(de)(de)核(he)心(xin)部(bu)件(jian)，是(shi)利用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力半導(dao)(dao)體器件(jian)的(de)(de)(de)(de)(de)通斷作用將(jiang)工頻(pin)(pin)(pin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)變(bian)(bian)換(huan)為(wei)(wei)另(ling)頻(pin)(pin)(pin)率的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能控制裝置(zhi)。目前使(shi)用的(de)(de)(de)(de)(de)變(bian)(bian)頻(pin)(pin)(pin)器主要采用交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)—直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)—交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)方式，先把(ba)工頻(pin)(pin)(pin)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)通過整流(liu)(liu)(liu)(liu)(liu)(liu)器轉(zhuan)換(huan)成直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，然(ran)后再把(ba)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)轉(zhuan)換(huan)成頻(pin)(pin)(pin)率、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)均可(ke)控制的(de)(de)(de)(de)(de)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)供給電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動機。變(bian)(bian)頻(pin)(pin)(pin)器的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路般由(you)整流(liu)(liu)(liu)(liu)(liu)(liu)、中間直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)環節、逆(ni)(ni)變(bian)(bian)和控制4個部(bu)分(fen)組成。整流(liu)(liu)(liu)(liu)(liu)(liu)部(bu)分(fen)為(wei)(wei)三相橋式不(bu)可(ke)控整流(liu)(liu)(liu)(liu)(liu)(liu)器，逆(ni)(ni)變(bian)(bian)部(bu)分(fen)為(wei)(wei)IGBT三相橋式逆(ni)(ni)變(bian)(bian)器且(qie)輸出為(wei)(wei)PWM波形，中間直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)環節為(wei)(wei)濾波、直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)儲能和緩沖無(wu)功(gong)功(gong)率。