Amanye amakhasimende, lapho evakashela ifektri, aphakamisa umbuzo wokuthi imikhiqizo yemoto ingahlolwa ngokuphindaphindiwe yini ukuhlolwa kwe-dielectric standing voltage. Lo mbuzo ubuye wabuzwa abasebenzisi abaningi bemoto. Ukuhlolwa kwe-dielectric standing voltage kuwukuhlolwa kokuthola ukusebenza kwe-insulation kwama-motor windings ngesikhathi sokucubungula umkhiqizo, kanye nokuhlolwa komkhiqizo womshini wonke. Isici sokwahlulela izimfanelo ukuthi i-insulation ayihlukaniswa ngaphansi kwezimo ezithile.
Ukuqinisekisa ukuthi ukusebenza kokufakwa kwe-motor insulation kuhlangabezana nezidingo, ngaphezu kokukhetha ucingo olufanele lwe-electromagnetic kanye nezinto zokufakwa kwe-insulation, iziqinisekiso zenqubo ezinokwethenjelwa nazo ziyadingeka. Isibonelo, ukuvikelwa ngesikhathi sokucubungula, izinto ezifanele, imishini emihle yokufaka, kanye nemingcele yenqubo efanele.
Uma sithatha ama-windings ama-motor ane-voltage ephezulu njengesibonelo, abakhiqizi abaningi bezimoto bazokwenza izivivinyo ze-turn-to-turn kanye ne-dielectric standing voltage kukhoyili ngayinye. Ngaphambi kokufakwa, i-core ene-windings kanye nomshini wonke ngesikhathi sokuhlolwa kuzohlolwa i-dielectric standing voltage. Lokhu kusibuyisela emuva ekungabazeni kwamakhasimende ngenkinga ye-dielectric standing.
Uma sikhuluma ngokufanele, ukuhlolwa kwe-dielectric standing voltage kuwukuhlolwa okubhubhisayo okungenakuguqulwa. Kungakhathaliseki ukuthi kungama-windings noma ama-coil ngamanye, akukhuthazwa ukwenza ukuhlolwa okuphindaphindiwe, ngesidingo sokuthola izinkinga njengesisekelo. Ezimweni ezikhethekile lapho kudingeka ukuhlolwa okuphindaphindiwe, i-voltage yokuhlola kufanele incishiswe ngokuya ngezidingo ezijwayelekile ezifanele ukuze kuncishiswe umonakalo ekufakweni kokushisa ngangokunokwenzeka.
Ngokuphathelene ne-Dielectric Withstand Voltage Tester
Isihloli se-dielectric standing voltage siyithuluzi lokulinganisa amandla e-dielectric standing voltage. Singahlola izinkomba zokusebenza zokuphepha kagesi ngendlela enembile, enembile, ngokushesha, nangokuthembekile njenge-standing voltage, i-breakdown voltage, kanye ne-leaking current yezinto ezivivinyiwe. Ngokusebenzisa isihloli se-dielectric standing voltage, izinkinga zingatholakala futhi ukuhambisana nokusebenza kwe-insulation kunganqunywa.
● Thola ikhono lokuvikela ukumelana ne-voltage yokusebenza noma i-overvoltage.
● Hlola ikhwalithi yokukhiqiza izinto zokuvikela ukushisa noma ukugcinwa kwemishini kagesi.
● Susa umonakalo ekushiseni okubangelwa izinto zokusetshenziswa, ukucubungula, noma ukuthuthwa, futhi unciphise izinga lokwehluleka kwemikhiqizo kusenesikhathi.
● Hlola ukuthi ukuhlanzwa kukagesi kuyahambisana yini nebanga lokukhukhuleka kokufakwa kokushisa.
Izimiso Zokukhetha I-Dielectric Withstand Voltage Test Voltage
Indlela engcono kakhulu yokuthola i-voltage yokuhlola ukuyibeka ngokwezimfuneko ezidingekayo zokuhlolwa. Ngokuvamile, i-voltage yokuhlola isethwe ngokuphindwe kabili kune-voltage elinganisiwe kanye ne-1000V. Isibonelo, uma umkhiqizo une-voltage elinganisiwe engu-380V, i-voltage yokuhlola ingaba ngu-2 x 380 + 1000 = 1760V. Vele, i-voltage yokuhlola ingahluka kuye ngesigaba sokushisa futhi izinhlobo ezahlukene zemikhiqizo zinezidingo ezahlukene ze-voltage.
Kungani kubalulekile ukuhlola njalo ubuqotho besekethe yokuhlola?
Abahloli be-Dielectric standing voltage emgqeni wokukhiqiza basetshenziswa kaningi kakhulu, ikakhulukazi ama-test lead kanye ne-test fixtures ezivame ukuhamba, okwenza kube lula ukuphuka kwentambo yangaphakathi kanye nama-open circuits, ngokuvamile akulula ukuwabona. Uma kukhona i-open circuit nganoma yisiphi isikhathi ku-loop, ukuphuma kwe-voltage ephezulu ngumhloli we-dielectric standing voltage akunakwenzeka ngempela ukuthi kusetshenziswe entweni evivinyiwe. Lezi zizathu zingabangela ukuthi i-voltage ephezulu esethiwe ingasetshenziswa ngempela entweni evivinyiwe ngesikhathi sokuhlolwa kwamandla e-dielectric standing, futhi ngokwemvelo, ugesi ogeleza entweni evivinyiwe uzoba cishe yi-zero. Njengoba ungadluli umkhawulo ophezulu obekwe ngumhloli we-dielectric standing voltage, ithuluzi lizonikeza isaziso sokuthi ukuhlolwa kuyafaneleka, kucatshangelwa ukuthi i-insulation iyafaneleka. Kodwa-ke, idatha yokuhlola kulokhu ayilona iqiniso. Uma into evivinyiwe inezinkinga zokufakelwa ngalesi sikhathi, kuzoholela ekuhluleleni okungalungile okukhulu.
Isikhathi sokuthunyelwe: Jan-16-2025