明泰電(dian)(dian)(dian)氣（蘇州(zhou)）有(you)限公司是正泰集(ji)團在蘇州(zhou)地區一(yi)家授權的經銷企業(ye)，連(lian)續(xu)十年銷量居正泰營銷網絡名(ming)，正泰電(dian)(dian)(dian)流(liu)表廠家，公司主要(yao)經營“正泰”牌配電(dian)(dian)(dian)電(dian)(dian)(dian)器(qi)(qi)、控制電(dian)(dian)(dian)器(qi)(qi)、終端(duan)電(dian)(dian)(dian)器(qi)(qi)、電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)器(qi)(qi)、電(dian)(dian)(dian)力電(dian)(dian)(dian)子、儀器(qi)(qi)儀表、建(jian)筑電(dian)(dian)(dian)器(qi)(qi)、高壓電(dian)(dian)(dian)器(qi)(qi)及成套設備。

電力儀表的(de)(de)可靠(kao)性設計就是為了提高產(chan)品的(de)(de)平(ping)均無故障工(gong)作時間，保證產(chan)品的(de)(de)正常運行(xing)。

硬件可靠性設計

電源的抗干擾設計

據工(gong)程統(tong)計(ji)(ji)數據分(fen)析(xi)，電(dian)(dian)(dian)力儀(yi)表系統(tong)70%的干(gan)(gan)擾(rao)(rao)都是(shi)(shi)通過電(dian)(dian)(dian)源耦合進入(ru)系統(tong)的。因此(ci)，電(dian)(dian)(dian)源供電(dian)(dian)(dian)質量的提高對整個系統(tong)的可(ke)靠運行有著(zhu)十分(fen)重要的意(yi)義。由(you)于系統(tong)的電(dian)(dian)(dian)源一般都是(shi)(shi)由(you)市電(dian)(dian)(dian)轉換(huan)得到，所以(yi)電(dian)(dian)(dian)源部(bu)分(fen)的抗(kang)干(gan)(gan)擾(rao)(rao)設(she)計(ji)(ji)主要集中在電(dian)(dian)(dian)源輸入(ru)端口的濾波和瞬態干(gan)(gan)擾(rao)(rao)的抑制方面。圖(tu)1是(shi)(shi)電(dian)(dian)(dian)源抗(kang)干(gan)(gan)擾(rao)(rao)的一個典型設(she)計(ji)(ji)，其中，RV1為熱敏(min)電(dian)(dian)(dian)阻(zu)，VZ1為壓敏(min)電(dian)(dian)(dian)阻(zu)，LA1為共(gong)模扼流圈。該電(dian)(dian)(dian)路可(ke)以(yi)有效抑制浪涌和群脈(mo)沖干(gan)(gan)擾(rao)(rao)。

明泰電(dian)(dian)(dian)(dian)(dian)氣（蘇州）有(you)限公(gong)司(si)是(shi)正泰集團在蘇州地區(qu)一家授權(quan)的經銷(xiao)企業，連續十年銷(xiao)量居正泰營銷(xiao)網絡名，公(gong)司(si)主要經營“正泰”牌配電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)器、控制電(dian)(dian)(dian)(dian)(dian)器、終端(duan)電(dian)(dian)(dian)(dian)(dian)器、電(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)器、電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)子(zi)、儀(yi)器儀(yi)表、建(jian)筑(zhu)電(dian)(dian)(dian)(dian)(dian)器、高壓(ya)電(dian)(dian)(dian)(dian)(dian)器及成套(tao)設(she)備(bei)。

類型的(de)(de)(de)(de)選擇。當被測量是(shi)直流(liu)時，應(ying)(ying)選直流(liu)表(biao)(biao)，正(zheng)泰電流(liu)表(biao)(biao)供應(ying)(ying)商，即(ji)磁(ci)電系測量機構的(de)(de)(de)(de)儀(yi)(yi)表(biao)(biao)。當被測量是(shi)交流(liu)時，應(ying)(ying)注意(yi)其波(bo)形與頻率。若為(wei)正(zheng)弦波(bo)，只(zhi)需測出(chu)有(you)效值(zhi)即(ji)可(ke)換(huan)算為(wei)其他值(zhi)（如醉大值(zhi)、平均值(zhi)等），采用(yong)任(ren)意(yi)一種交流(liu)表(biao)(biao)即(ji)可(ke)；若為(wei)非(fei)正(zheng)弦波(bo)，則應(ying)(ying)區分需測量的(de)(de)(de)(de)是(shi)什么值(zhi)，有(you)效值(zhi)可(ke)選用(yong)磁(ci)系或鐵磁(ci)電動(dong)系測量機構的(de)(de)(de)(de)儀(yi)(yi)表(biao)(biao)，平均值(zhi)則選用(yong)整流(liu)系測量機構的(de)(de)(de)(de)儀(yi)(yi)表(biao)(biao)。電動(dong)系測量機構的(de)(de)(de)(de)儀(yi)(yi)表(biao)(biao)常用(yong)于交流(liu)電流(liu)和電壓的(de)(de)(de)(de)精密測量。

明泰(tai)(tai)電(dian)氣（蘇州）有限公司是(shi)正泰(tai)(tai)集團(tuan)在蘇州地區一家授權的經銷(xiao)企業，連(lian)續十年(nian)銷(xiao)量居正泰(tai)(tai)營(ying)銷(xiao)網絡名，正泰(tai)(tai)電(dian)流(liu)表(biao)，公司主要經營(ying)“正泰(tai)(tai)”牌配(pei)電(dian)電(dian)器(qi)(qi)(qi)(qi)(qi)、控制電(dian)器(qi)(qi)(qi)(qi)(qi)、終(zhong)端電(dian)器(qi)(qi)(qi)(qi)(qi)、電(dian)源電(dian)器(qi)(qi)(qi)(qi)(qi)、電(dian)力(li)電(dian)子、儀器(qi)(qi)(qi)(qi)(qi)儀表(biao)、建(jian)筑(zhu)電(dian)器(qi)(qi)(qi)(qi)(qi)、高壓電(dian)器(qi)(qi)(qi)(qi)(qi)及成套設備(bei)。

當有(you)電(dian)(dian)流(liu)(liu)(liu)通(tong)過(guo)時(shi)，電(dian)(dian)流(liu)(liu)(liu)沿彈簧、轉(zhuan)(zhuan)軸通(tong)過(guo)磁(ci)(ci)場，電(dian)(dian)流(liu)(liu)(liu)切(qie)磁(ci)(ci)感線(xian)，所以(yi)受(shou)磁(ci)(ci)場力(li)的(de)作(zuo)用，使線(xian)圈發生偏轉(zhuan)(zhuan)，帶動轉(zhuan)(zhuan)軸、指針偏轉(zhuan)(zhuan)。由于磁(ci)(ci)場力(li)的(de)大(da)小隨電(dian)(dian)流(liu)(liu)(liu)增大(da)而(er)增大(da)，所以(yi)就可以(yi)通(tong)過(guo)指針的(de)偏轉(zhuan)(zhuan)程度來觀察電(dian)(dian)流(liu)(liu)(liu)的(de)大(da)小。這叫磁(ci)(ci)電(dian)(dian)式電(dian)(dian)流(liu)(liu)(liu)表，就是我(wo)們平(ping)時(shi)實驗室里用的(de)那種。在初中時(shi)期，所用電(dian)(dian)流(liu)(liu)(liu)表量程一般為0~0.6A和(he)0~3A