2023-313
羅(luo)賓康(kang)變(bian)頻(pin)器(qi)是(shi)應用(yong)變(bian)頻(pin)技術與微(wei)電(dian)(dian)子技術，通過改變(bian)電(dian)(dian)機(ji)工作(zuo)電(dian)(dian)源頻(pin)率(lv)(lv)(lv)方式(shi)來(lai)控(kong)(kong)制交(jiao)流電(dian)(dian)動機(ji)的(de)(de)(de)電(dian)(dian)力控(kong)(kong)制設備，在(zai)冶(ye)金、電(dian)(dian)力、等(deng)各(ge)個領域應用(yong)十分廣泛，以下幾個參(can)數是(shi)變(bian)頻(pin)器(qi)調試時要(yao)(yao)注意的(de)(de)(de)：1．V/f類型(xing)選擇電(dian)(dian)動機(ji)系統可(ke)以運行(xing)的(de)(de)(de)最高頻(pin)率(lv)(lv)(lv)。由于(yu)變(bian)頻(pin)器(qi)自身的(de)(de)(de)最高頻(pin)率(lv)(lv)(lv)可(ke)能(neng)較高，當(dang)電(dian)(dian)動機(ji)容許的(de)(de)(de)高頻(pin)率(lv)(lv)(lv)低(di)于(yu)變(bian)頻(pin)器(qi)的(de)(de)(de)高頻(pin)率(lv)(lv)(lv)時，應按電(dian)(dian)動機(ji)及(ji)其負(fu)載的(de)(de)(de)要(yao)(yao)求進(jin)行(xing)設定(ding)。基本頻(pin)率(lv)(lv)(lv)是(shi)變(bian)頻(pin)器(qi)對(dui)電(dian)(dian)動機(ji)進(jin)行(xing)恒功率(lv)(lv)(lv)控(kong)(kong)制和(he)恒轉矩控(kong)(kong)制的(de)(de)(de)分界線，應按電(dian)(dian)動機(ji)的(de)(de)(de)額定(ding)電(dian)(dian)定(ding)電(dian)(dian)壓設定(ding)。轉矩類型(xing)指的(de)(de)(de)是(shi)負(fu)載是(shi)恒轉矩負(fu)載還是(shi)變(bian)轉矩負(fu)載。用(yong)戶根據(ju)變(bian)頻(pin)...
查看更多2023-216
UHPC-33.4-480-3P英博(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)器中(zhong)間夾一(yi)(yi)層(ceng)不導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)絕緣介(jie)質，這就(jiu)構(gou)成了電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)器。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)器的(de)(de)兩個極板之(zhi)(zhi)間加上(shang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)器就(jiu)會儲(chu)(chu)存(cun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)器的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)量(liang)在數值(zhi)上(shang)等于一(yi)(yi)個導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極板上(shang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷量(liang)與兩個極板之(zhi)(zhi)間的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)之(zhi)(zhi)比。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)器的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)量(liang)的(de)(de)基本單位是(shi)(shi)法拉（F）。在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)圖中(zhong)通常用字母(mu)C表示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)元件。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)是(shi)(shi)儲(chu)(chu)能的(de)(de)，在理想電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)儲(chu)(chu)能的(de)(de)過(guo)程(cheng)中(zhong)，進出的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)通過(guo)ESR（等效串阻）上(shang)消耗的(de)(de)能量(liang)就(jiu)是(shi)(shi)產生(sheng)的(de)(de)熱(re)量(liang)。在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)率的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)依(yi)賴性為非線(xian)形的(de)(de)高電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)率類電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)器中(zhong)，需同時(shi)觀察(cha)加在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)器上(shang)的(de)(de)交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)與交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)...
查看更多2023-19
AVS行(xing)程(cheng)開關(guan)是(shi)根據(ju)運動(dong)(dong)(dong)部(bu)件(jian)的(de)(de)行(xing)程(cheng)位置而(er)切(qie)換電(dian)路(lu)工作(zuo)狀態(tai)的(de)(de)控(kong)制(zhi)(zhi)電(dian)器(qi)，在機床設備中，事(shi)先將行(xing)程(cheng)開關(guan)根據(ju)工藝要(yao)求安裝在一(yi)(yi)定的(de)(de)行(xing)程(cheng)位置上(shang)，部(bu)件(jian)在運行(xing)中，撞上(shang)行(xing)程(cheng)開關(guan)使觸(chu)點(dian)動(dong)(dong)(dong)作(zuo)而(er)實現電(dian)路(lu)的(de)(de)切(qie)換，達(da)到(dao)控(kong)制(zhi)(zhi)運動(dong)(dong)(dong)部(bu)件(jian)行(xing)程(cheng)位置的(de)(de)目的(de)(de)。它的(de)(de)作(zuo)用與按鈕開關(guan)相(xiang)同(tong)，只是(shi)對控(kong)制(zhi)(zhi)電(dian)路(lu)發出接(jie)通或斷(duan)開、信號轉換等指令的(de)(de)電(dian)器(qi)。區別(bie)只是(shi)其觸(chu)頭(tou)的(de)(de)動(dong)(dong)(dong)作(zuo)不是(shi)靠手指來(lai)完(wan)成，而(er)是(shi)利用生產機械某些(xie)運動(dong)(dong)(dong)部(bu)件(jian)的(de)(de)碰撞使其觸(chu)頭(tou)動(dong)(dong)(dong)作(zuo)，接(jie)通或斷(duan)開某些(xie)控(kong)制(zhi)(zhi)電(dian)路(lu)，達(da)到(dao)一(yi)(yi)定控(kong)制(zhi)(zhi)要(yao)求的(de)(de)電(dian)器(qi)。各種系(xi)列的(de)(de)開關(guan)其基本結構相(xiang)同(tong)，都是(shi)由(you)操作(zuo)點(dian)觸(chu)頭(tou)系(xi)統和...
查看更多2022-1212
SPECTRO光(guang)譜(pu)儀配(pei)(pei)件是將(jiang)成分(fen)復雜的(de)光(guang)分(fen)解，由棱鏡或衍射(she)光(guang)柵等構成，利用(yong)光(guang)譜(pu)儀可測(ce)量物(wu)體表面反射(she)的(de)光(guang)線。陽光(guang)中(zhong)(zhong)的(de)七(qi)色(se)光(guang)是肉(rou)眼能分(fen)的(de)部分(fen)(可見光(guang))，但若通過(guo)光(guang)譜(pu)儀將(jiang)陽光(guang)分(fen)解，按波(bo)(bo)長排(pai)列，可見光(guang)只占光(guang)譜(pu)中(zhong)(zhong)很小的(de)范圍，其(qi)余都是肉(rou)眼無法分(fen)辨的(de)光(guang)譜(pu)，如、微波(bo)(bo)、紫外線、等等。通過(guo)光(guang)譜(pu)儀對(dui)光(guang)信息的(de)抓取、以照相(xiang)底片顯影，或電腦(nao)化自動顯示(shi)(shi)數(shu)值儀器顯示(shi)(shi)和分(fen)析，從而(er)測(ce)知物(wu)品(pin)中(zhong)(zhong)含有何種元素。這種技術被廣泛(fan)地應用(yong)于空氣(qi)污(wu)(wu)染(ran)、水污(wu)(wu)染(ran)、食品(pin)衛生、金屬工業等的(de)檢測(ce)中(zhong)(zhong)。光(guang)譜(pu)儀配(pei)(pei)件是將(jiang)分(fen)離成光(guang)譜(pu)的(de)光(guang)學儀器。光(guang)...
查看更多2022-1114
羅(luo)賓康變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)按輸入電壓(ya)等級可分低(di)(di)壓(ya)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)和高(gao)壓(ya)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)，低(di)(di)壓(ya)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)國內常見的(de)有單相220V變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)、三相220V變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)、i相380V變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)。高(gao)壓(ya)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)常見有6KV、10KV變(bian)(bian)(bian)(bian)(bian)壓(ya)器(qi)，控制方式(shi)一般是按高(gao)低(di)(di)-高(gao)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)或高(gao)-高(gao)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)方式(shi)進(jin)行(xing)(xing)變(bian)(bian)(bian)(bian)(bian)換(huan)的(de)。變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)的(de)溫度保護功(gong)能是保障變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)穩定運行(xing)(xing)不可少的(de)一個條件(jian)。在變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)主回(hui)路(lu)功(gong)率(lv)器(qi)件(jian)中，整流橋、逆變(bian)(bian)(bian)(bian)(bian)橋都是半導體功(gong)率(lv)器(qi)件(jian)，由于半導體器(qi)件(jian)本身的(de)工作溫度特性所限，不能超出器(qi)件(jian)本身允(yun)許的(de)工作范圍；另(ling)外變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)的(de)電子線路(lu)中也(ye)不允(yun)許溫度過(guo)高(gao)。如果變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)發(fa)生過(guo)...
查看更多2022-1017
利(li)德華(hua)福功(gong)率單元主(zhu)要由二極管(guan)三相全橋整流(liu)器(qi)(qi)(qi)、濾波電(dian)容(rong)器(qi)(qi)(qi)、IGBT逆變(bian)(bian)橋組成，當然還(huan)包括(kuo)功(gong)率器(qi)(qi)(qi)件的(de)(de)驅動(dong)，保護，信(xin)號采集(ji)，光纖通(tong)訊等功(gong)能組成。面對(dui)變(bian)(bian)頻器(qi)(qi)(qi)含有大量(liang)諧、畸變(bian)(bian)或是非工頻的(de)(de)電(dian)量(liang)，準確的(de)(de)測量(liang)方法(fa)是采用具有FFT功(gong)能的(de)(de)儀(yi)器(qi)(qi)(qi)。在(zai)許(xu)多應(ying)(ying)用中(zhong)，通(tong)過(guo)參數(shu)設(she)置(zhi)過(guo)載響應(ying)(ying)以(yi)防止(zhi)裝置(zhi)短(duan)暫(zan)過(guo)載情況下(xia)(xia)的(de)(de)瞬間停機(ji)。例(li)如多數(shu)風機(ji)水泵應(ying)(ying)用中(zhong)，由于過(guo)載響應(ying)(ying)設(she)置(zhi)導致輸出電(dian)流(liu)短(duan)時減小造成流(liu)量(liang)短(duan)暫(zan)下(xia)(xia)降是*可以(yi)接(jie)受的(de)(de)；又如驅動(dong)器(qi)(qi)(qi)通(tong)過(guo)設(she)置(zhi)高于工廠設(she)定的(de)(de)脈沖頻率以(yi)實現降低(di)電(dian)機(ji)噪(zao)聲的(de)(de)情況下(xia)(xia)，通(tong)過(guo)過(guo)載響應(ying)(ying)設(she)置(zhi)降低(di)脈沖頻...
查看更多2022-725
穆爾繼(ji)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)(de)輸入量(liang)（如(ru)(ru)電(dian)(dian)(dian)壓、電(dian)(dian)(dian)流、溫度(du)等）達到規定值時，使被控制的(de)(de)(de)(de)(de)輸出電(dian)(dian)(dian)路導(dao)(dao)通或(huo)斷開的(de)(de)(de)(de)(de)電(dian)(dian)(dian)器(qi)(qi)。可(ke)分為電(dian)(dian)(dian)氣量(liang)（如(ru)(ru)電(dian)(dian)(dian)流、電(dian)(dian)(dian)壓、頻(pin)率、功率等）繼(ji)電(dian)(dian)(dian)器(qi)(qi)及非電(dian)(dian)(dian)量(liang)（如(ru)(ru)溫度(du)、壓力(li)、速度(du)等）繼(ji)電(dian)(dian)(dian)器(qi)(qi)兩大類。接(jie)(jie)觸(chu)(chu)(chu)電(dian)(dian)(dian)阻(zu)是繼(ji)電(dian)(dian)(dian)器(qi)(qi)主(zhu)要參數(shu)之一(yi)，也是比較難(nan)于測準的(de)(de)(de)(de)(de)參數(shu)。靜(jing)(jing)(jing)態接(jie)(jie)觸(chu)(chu)(chu)電(dian)(dian)(dian)阻(zu)綜合反(fan)映(ying)了(le)電(dian)(dian)(dian)磁繼(ji)電(dian)(dian)(dian)器(qi)(qi)多方(fang)面的(de)(de)(de)(de)(de)性能(neng)。靜(jing)(jing)(jing)態接(jie)(jie)觸(chu)(chu)(chu)電(dian)(dian)(dian)阻(zu)可(ke)以(yi)反(fan)映(ying)觸(chu)(chu)(chu)點(dian)間的(de)(de)(de)(de)(de)接(jie)(jie)觸(chu)(chu)(chu)壓力(li)，接(jie)(jie)觸(chu)(chu)(chu)壓力(li)不夠的(de)(de)(de)(de)(de)觸(chu)(chu)(chu)點(dian)會(hui)導(dao)(dao)致觸(chu)(chu)(chu)點(dian)接(jie)(jie)觸(chu)(chu)(chu)電(dian)(dian)(dian)阻(zu)變大。靜(jing)(jing)(jing)態接(jie)(jie)觸(chu)(chu)(chu)電(dian)(dian)(dian)阻(zu)還(huan)可(ke)以(yi)反(fan)映(ying)觸(chu)(chu)(chu)點(dian)的(de)(de)(de)(de)(de)表面狀態，觸(chu)(chu)(chu)點(dian)表面氧化或(huo)生成有機鈍化膜也會(hui)導(dao)(dao)致靜(jing)(jing)(jing)態接(jie)(jie)觸(chu)(chu)(chu)電(dian)(dian)(dian)阻(zu)變大。如(ru)(ru)能(neng)對觸(chu)(chu)(chu)點(dian)靜(jing)(jing)(jing)態接(jie)(jie)觸(chu)(chu)(chu)電(dian)(dian)(dian)阻(zu)...
查看更多2022-622
AEG接(jie)觸(chu)(chu)器(qi)(qi)VCR193-400A廣(guang)泛(fan)用(yong)作電(dian)力的(de)開(kai)(kai)斷和控制電(dian)路(lu)(lu)。接(jie)觸(chu)(chu)器(qi)(qi)利用(yong)主接(jie)點來開(kai)(kai)閉電(dian)路(lu)(lu)，用(yong)輔助接(jie)點來執行(xing)控制指令。主接(jie)點一般只有(you)(you)常開(kai)(kai)接(jie)點，而輔助接(jie)點常有(you)(you)兩對具有(you)(you)常開(kai)(kai)和常閉功能的(de)接(jie)點，小型的(de)接(jie)觸(chu)(chu)器(qi)(qi)也(ye)經(jing)常作為中(zhong)間(jian)繼(ji)電(dian)器(qi)(qi)配合主電(dian)路(lu)(lu)使(shi)(shi)用(yong)。交(jiao)流接(jie)觸(chu)(chu)器(qi)(qi)在工作過(guo)程中(zhong)可(ke)頻(pin)繁通斷，在使(shi)(shi)用(yong)過(guo)程中(zhong)會(hui)對接(jie)觸(chu)(chu)器(qi)(qi)觸(chu)(chu)頭造成磨損。同(tong)時(shi)，有(you)(you)時(shi)候使(shi)(shi)用(yong)不當，或(huo)者在相(xiang)對惡劣環境中(zhong)使(shi)(shi)用(yong)，也(ye)會(hui)使(shi)(shi)接(jie)觸(chu)(chu)器(qi)(qi)的(de)壽(shou)命縮短，引(yin)起故障。因此在使(shi)(shi)用(yong)時(shi)要根據實際(ji)情(qing)況來進(jin)行(xing)選擇(ze)，并且在使(shi)(shi)用(yong)時(shi)要及時(shi)進(jin)行(xing)維護，避免出現故障后產生更大的(de)損失(shi)...
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