Product category
品牌 | 江蘇龍運 | 產地類別 | 國產 |
---|---|---|---|
應用領域 | 化工,石油,地礦,能源,電子 |
RZJ-5KV匝間絕緣沖擊耐壓試驗儀是采用脈沖波形比較法,以高壓脈沖對電機及電器的線圈繞組進行等效過電壓模擬試驗。通過對儀器顯示波形的觀察、對比與分析,能迅速正確地測定繞組匝間絕緣的好壞。對匝間短路、線圈電暈放電、局部短路、接線錯誤、線圈平衡等各類匝間絕緣故障均有良好的鑒別性能。
產品優點(dian)三相(xiang)電機換相(xiang)測試功(gong)能(neng),峰值電壓數字顯示,各功(gong)能(neng)電路板一(yi)體化(hua)集成,具有(you)操作簡便(bian),故障率低的(de)特點(dian)。
適用于(yu)中小型電(dian)(dian)機(ji)(ji)(ji)(Y180以(yi)下)及防(fang)爆(bao)電(dian)(dian)機(ji)(ji)(ji)、分馬力電(dian)(dian)機(ji)(ji)(ji)、微特(te)電(dian)(dian)機(ji)(ji)(ji)、家用電(dian)(dian)器電(dian)(dian)機(ji)(ji)(ji)、水(shui)泵(beng)電(dian)(dian)機(ji)(ji)(ji)、電(dian)(dian)動工(gong)具等行業(ye),用于(yu)檢測電(dian)(dian)機(ji)(ji)(ji)繞組的(de)匝間絕(jue)緣、電(dian)(dian)暈放電(dian)(dian)、局部(bu)短路(lu)、接線(xian)錯誤和(he)圈數不均衡(heng)等故障。
主要市場中小型電(dian)機、微特(te)電(dian)機、家用電(dian)器電(dian)機、水泵電(dian)機、電(dian)動工具等行業(ye).
RZJ-5KV匝間絕緣沖擊耐壓試驗儀性能特點:
波形顯示方式(shi):7"CRT顯示器。
峰值電壓:500~5000V連續(xu)可(ke)調
峰值(zhi)測(ce)試誤(wu)差≤ 5%(1kV-5kV)
波形(xing)上升時間:0.5μS或0.2μS
工作(zuo)電(dian)源(yuan):220V±10% 50HZ
功耗(hao):≤ 100 W
外形尺寸:48×26×39CM
重量(liang):24Kg
具有三相電機換相測(ce)試功能
附:測試基本原理
當線圈(quan)發生直接固體短路(lu)故(gu)障時(shi),會形成(cheng)短路(lu)匝,將明顯(xian)改(gai)(gai)變(bian)線圈(quan)的(de)電(dian)(dian)(dian)(dian)感、電(dian)(dian)(dian)(dian)容(rong)(rong)和(he)(he)(he)電(dian)(dian)(dian)(dian)阻,對尚有-定絕緣程度的(de)匝間絕緣薄弱點,在(zai)沒有達到(dao)會使(shi)薄弱點擊穿而(er)(er)暴露之前,其繞組電(dian)(dian)(dian)(dian)感、電(dian)(dian)(dian)(dian)阻和(he)(he)(he)電(dian)(dian)(dian)(dian)容(rong)(rong)基本上無明顯(xian)變(bian)化,因(yin)(yin)而(er)(er)無法觀(guan)察故(gu)障。只有當試驗電(dian)(dian)(dian)(dian)壓超(chao)過絕緣薄弱點的(de)耐壓值時(shi),才會造成(cheng)匝間絕緣擊穿,產生火花放電(dian)(dian)(dian)(dian),并(bing)伴有放電(dian)(dian)(dian)(dian)聲和(he)(he)(he)臭氧,同時(shi)明顯(xian)改(gai)(gai)變(bian)電(dian)(dian)(dian)(dian)感L、電(dian)(dian)(dian)(dian)容(rong)(rong)C和(he)(he)(he)電(dian)(dian)(dian)(dian)阻R,因(yin)(yin)而(er)(er)會改(gai)(gai)變(bian)沖(chong)擊試驗電(dian)(dian)(dian)(dian)壓波在(zai)繞組中的(de)衰減振(zhen)蕩頻率和(he)(he)(he)衰減速(su)率。
RZJ-5匝(za)間(jian)耐壓(ya)試驗(yan)儀就是以上(shang)述原理為(wei)依據,采用“脈(mo)(mo)(mo)沖(chong)波形(xing)比(bi)較法(fa)"來檢驗(yan)阻(zu)抗對稱,平衡情況的(de)。即將具有-定波前時間(jian)和規定峰值的(de)脈(mo)(mo)(mo)沖(chong)電壓(ya)交(jiao)替(ti)施加(jia)于被試品(pin)和參照品(pin)后,利用脈(mo)(mo)(mo)沖(chong)電壓(ya)在兩者中(zhong)引起的(de)衰(shuai)減波形(xing)的(de)差異來區別電機繞(rao)組(zu)匝(za)間(jian)絕緣(yuan)故(gu)(gu)障,其差異程(cheng)度(du)反映了線圈繞(rao)組(zu)匝(za)間(jian)故(gu)(gu)障嚴重程(cheng)度(du),由(you)于施加(jia)的(de)高壓(ya)脈(mo)(mo)(mo)沖(chong)波前時間(jian)短,能(neng)量小,故(gu)(gu)被認為(wei)是無(wu)損試驗(yan)。