HT200C選用足夠(gou)安全載流(liu)量的電源線接通容量足夠(gou)的220V電源，把各功能開(kai)關選到需(xu)要位(wei)(wei)置，輸(shu)(shu)(shu)出(chu)調節(jie)手輪(lun)旋轉(zhuan)至零位(wei)(wei)，即可接被測(ce)器件(jian)，儀器即可開(kai)始工作。當輸(shu)(shu)(shu)出(chu)電流(liu)較(jiao)大(da)時(shi)，應選用內(nei)阻較(jiao)小的電源，若電源內(nei)阻過大(da)，輸(shu)(shu)(shu)出(chu)電流(liu)不易(yi)升(sheng)到設定值。
1、測試熱繼電器
測(ce)試(shi)(shi)時(shi)(shi)應(ying)蓋(gai)(gai)好熱(re)(re)(re)繼(ji)電(dian)(dian)(dian)(dian)器(qi)蓋(gai)(gai)，小電(dian)(dian)(dian)(dian)流(liu)值(zhi)熱(re)(re)(re)繼(ji)電(dian)(dian)(dian)(dian)器(qi)用小電(dian)(dian)(dian)(dian)流(liu)檔位(wei),把三個熱(re)(re)(re)元件串接(jie)(jie)后，再接(jie)(jie)在相應(ying)的(de)測(ce)試(shi)(shi)柱上，常(chang)閉點接(jie)(jie)輔助接(jie)(jie)點柱上，量程轉(zhuan)(zhuan)換開(kai)關選至(zhi)適當(dang)電(dian)(dian)(dian)(dian)流(liu)檔位(wei)，輸出(chu)調(diao)節(jie)手(shou)輪(lun)置零(ling)(ling)位(wei)，自鎖開(kai)關斷(duan)開(kai)，檢(jian)查(cha)各接(jie)(jie)線(xian)端柱接(jie)(jie)觸應(ying)良好，打開(kai)電(dian)(dian)(dian)(dian)源(yuan)開(kai)關,按(an)啟(qi)動鈕，三相熱(re)(re)(re)繼(ji)電(dian)(dian)(dian)(dian)器(qi)校(xiao)驗(yan)儀測(ce)試(shi)(shi)電(dian)(dian)(dian)(dian)源(yuan)接(jie)(jie)通,旋轉(zhuan)(zhuan)輸出(chu)調(diao)節(jie)手(shou)輪(lun)至(zhi)被測(ce)熱(re)(re)(re)繼(ji)電(dian)(dian)(dian)(dian)器(qi)額(e)定電(dian)(dian)(dian)(dian)流(liu)，使(shi)雙金屬片(pian)達到熱(re)(re)(re)穩定狀態(tai)，以此穩定熱(re)(re)(re)態(tai)再旋轉(zhuan)(zhuan)輸出(chu)調(diao)節(jie)手(shou)輪(lun)使(shi)測(ce)試(shi)(shi)電(dian)(dian)(dian)(dian)流(liu)到額(e)定電(dian)(dian)(dian)(dian)流(liu)的(de)1.2 倍，計(ji)(ji)時(shi)(shi)從零(ling)(ling)開(kai)始，進入測(ce)試(shi)(shi)階段，規定時(shi)(shi)間內，熱(re)(re)(re)繼(ji)電(dian)(dian)(dian)(dian)器(qi)應(ying)脫扣(kou)為合(he)格一項，熱(re)(re)(re)繼(ji)電(dian)(dian)(dian)(dian)器(qi)接(jie)(jie)點斷(duan)開(kai)，測(ce)試(shi)(shi)電(dian)(dian)(dian)(dian)流(liu)消(xiao)失，計(ji)(ji)時(shi)(shi)停止，并顯示測(ce)驗(yan)時(shi)(shi)間，測(ce)試(shi)(shi)終了信(xin)號由燈光(guang)和聲響給出(chu)，當(dang)要停止信(xin)號時(shi)(shi)可按(an)關斷(duan)聲光(guang)開(kai)關。
當測試額定 時，一般(ban)按(an)規(gui)程(cheng)應從熱元件冷態開始。熱繼(ji)電(dian)器的其(qi)它(ta)參數整定請參閱有關規(gui)程(cheng)進行(xing),也(ye)可(ke)按(an)被(bei)保(bao)護的電(dian)動機(ji)負(fu)荷情況選(xuan)定熱繼(ji)電(dian)器的安-秒脫扣特性。
2、測斷路器(qi),電動機保護器(qi)
三相熱繼(ji)電器校驗儀在測(ce)試前要仔(zi)細檢(jian)查各活動(dong)(dong)部(bu)位，是否銹蝕、卡住，活動(dong)(dong)軸應有(you)少量潤滑油脂才好，試合(he)閘后(hou)，人工(gong)觸動(dong)(dong)熱脫扣，瞬時間脫扣無誤后(hou)再進行(xing)檢(jian)測(ce)。
斷路(lu)器(qi)(qi)電(dian)動機(ji)保(bao)護器(qi)(qi)有輔助接點的(de)同熱繼電(dian)器(qi)(qi)接法相同，斷路(lu)器(qi)(qi)測完斷開時，其(qi)信號由關(guan)斷裝置的(de)傳感器(qi)(qi)送來，關(guan)斷測試(shi)電(dian)源，并顯示測驗時間(jian)，發(fa)出(chu)測試(shi)完畢(bi)信號。
3、測半導體(ti)式斷路器(qi)
在(zai)檢測(ce)(ce)前(qian)應(ying)對此種(zhong)(zhong)開關(guan)(guan)檢查上述機械機構(gou)外還要對電(dian)(dian)子元件(jian)進行(xing)檢查，半導體式開關(guan)(guan)有長延(yan)時(shi)，短延(yan)時(shi)，瞬時(shi)脫扣及欠電(dian)(dian)壓(ya)脫扣的多種(zhong)(zhong)功能等(deng)。可(ke)在(zai)開關(guan)(guan)所附的互(hu)感器(qi)上穿測(ce)(ce)試導線后接在(zai)本儀器(qi)相應(ying)端柱上進行(xing)測(ce)(ce)驗，也可(ke)用本儀器(qi)直(zhi)流電(dian)(dian)壓(ya)加在(zai)斷(duan)路器(qi)信號檢測(ce)(ce)分配(pei)電(dian)(dian)路前(qian)兩(liang)點，也可(ke)按生產(chan)廠給定的參數(shu)或被保護設備負荷情況迸行(xing)測(ce)(ce)校。
4、用本儀(yi)器(qi)HT200C三相熱繼電(dian)器(qi)校驗儀(yi)可(ke)對(dui)低壓配電(dian)中常(chang)用的交(jiao)流接(jie)觸器(qi)、交(jiao)流電(dian)流表(biao)、電(dian)流互感器(qi)等電(dian)器(qi)、儀(yi)表(biao)的校對(dui)測驗 。其它繼電(dian)保(bao)護(hu)裝置，低壓電(dian)器(qi)的檢測，請參(can)閱有關(guan)規程、標準，負荷性質等情況及生產廠給定的參(can)數(shu)。
5、測量轉(zhuan)換開(kai)關選(xuan)至AC450V或DC300V電(dian)(dian)壓位置，打開(kai)電(dian)(dian)壓輸出開(kai)關，自鎖開(kai)關合上(shang)(shang)，旋轉(zhuan)輸出調節手輪(lun)，在對應接(jie)線柱上(shang)(shang)即可得到直(zhi)流(liu)0~220V，交(jiao)流(liu)0~450V連(lian)續可調的輸出電(dian)(dian)壓。(備選(xuan)功能)
故障分析與(yu)排除
1.通電無電源，請查看(kan)保險絲是否(fou)(fou)熔斷，插頭是否(fou)(fou)接好。
2.無輸出，看電(dian)流轉換開關是否(fou)打到空檔，或看升(sheng)流器有無220V輸入，是否(fou)因(yin)輸出端(duan)氧化所至。
3.有輸出無(wu)顯示(shi)，限流電阻(zu)R1或R2斷353損壞。
4.同步信號不動作，啟動鍵損壞，或3DK4損壞。
