Akwai matakai da yawa a gwajin aiki na mai gwajin juriya

Ana amfani da na'urar gwajin juriya ta musamman don auna juriyar juriyar manyan taswira, tasfoma, janareta, manyan injina, masu ƙarfin wuta, igiyoyin wuta, masu kamawa da sauran kayan aiki.

GD3127/3128 Gwajin Juriya na Insulation

Matakan aiki da gwajin gwajin juriya:

(1) Ya kamata a zaɓi mai girgiza bisa ga matakin ƙarfin lantarki na kayan aiki.Don masu taswirar 10KV-35KV, ya kamata a yi amfani da shaker 2500 volt.

(2) Kafin auna juriya, yakamata a yanke wutar lantarki na kayan aikin da ake gwadawa, sannan aiwatar da fitar da gajeren lokaci, manufar fitarwa shine don kare lafiyar mutane da kayan aiki, da yin awo. sakamako daidai;

(3) Haɗin mahaɗin ya zama wayoyi guda biyu daban-daban (launi biyu) tare da insulation mai kyau, biyu Kada ku karkatar da wayoyi masu haɗawa tare, kuma kada ku sanya wayoyi masu haɗawa su tuntuɓar ƙasa, don guje wa kurakurai da rashin ƙarfi ya haifar. rufi na wayoyi masu haɗawa;

(4) Kafin aunawa, yi gwajin da'ira da gajeriyar kewayawa a kan mai girgiza don duba ko girgizar tana cikin yanayi mai kyau kuma na'urar taranfoma ta kasance a rufe.Idan mai gwajin juriya ya buɗe layin haɗin biyu kuma ya girgiza hannun, mai nuni ya kamata ya nuna a ∞ (infinity).A wannan lokacin, idan layukan haɗin guda biyu suna ɗan gajeren kewayawa, mai nuni ya kamata ya nuna a 0, wanda ke nufin cewa mai girgiza yana cikin yanayi mai kyau., in ba haka ba akwai kuskure a cikin tebur mai girgiza;

(5) Hanyar wayoyi na girgiza juriya na rufin firamare zuwa iska na biyu da ƙasa (harsashi): Short-Circuit the three-phase terminals lU, lV da 1W na firamare winding tare da danda jan karfe wayoyi, domin don haɗawa zuwa ƙarshen "L" na megohmmeter;gajeriyar kewaya tashoshi N, 2U, 2V, 2W da ƙasa (ɓawon ƙasa) na iska na biyu tare da wayoyi mara kyau na jan karfe, sa'an nan kuma haɗa su zuwa ƙarshen "E" na megohmmeter;idan ya cancanta, don rage tasirin ɗigon ƙasa akan ƙimar da aka auna, za a iya raunata wariyar jan ƙarfe mara kyau akan siket ɗin ain na hannun riga na gefe na farko don 'yan juyawa, sannan a haɗa zuwa ƙarshen "G" na ƙarshen. megohmmeter tare da waya mai rufi;

(6) Girgiza ma'aunin iska na biyu Hanyar wayoyi na juriya na juriya na iskar farko da ƙasa (harsashi): gajeriyar kewayawa ta 2U, 2V, 2W, da N na iska ta biyu tare da wayoyi mara kyau na tagulla. .Domin haɗi zuwa ƙarshen "L" na megohmmeter;bayan gajeriyar kewayawa matakan uku-uku yana kaiwa 1U, 1V, 1W da ƙasa (harsashi) na iska na farko tare da wayoyi mara kyau na jan ƙarfe, haɗa su zuwa ƙarshen “E” na megger;Don rage tasirin ɗigogi a kan ƙimar da aka auna, za a iya raunata wariyar jan ƙarfe maras kyau a kusa da siket ɗin ain na hannun riga na gefe na biyu don ƴan juyawa, sannan a haɗa zuwa ƙarshen “G” na megohmmeter tare da keɓaɓɓen waya. .

(7) Lokacin aunawa, danna harsashin mai girgiza da hannu ɗaya (don hana girgiza daga girgiza).Lokacin da mai nuni ya nuna 0, dakatar da girgiza nan da nan don guje wa ƙone agogon;

(8) Lokacin aunawa, sanya tebur mai girgiza a kwance, juya hannun janareta a cikin gudun kusan juyi 120 a minti daya, sannan karanta a 15s Ɗauki lamba (R15), karanta wata lamba (R60) a 60s, da rikodin bayanan girgiza.