Izinkinga endaweni yokuhlola yesihloli sokumelana ne-loop

Lapho isihloli sokumelana ne-loop (esiphinde sibizwe ngokuthi isihloli sokumelana nokuxhumana) esakhiwe ngokuya ngesimiso somklamo ovamile sihlolwa ensimini, kwatholakala ukuthi kunenkinga evamile.Uma isekethe yokuxhuma i-voltage yomhloli ingaxhumene kahle noma isekethe evuliwe, umhloli uzophinda abonise inani, futhi kuzokwenzeka izimo ezilandelayo:

                                                                           I-HV HIPOT GDHL-200A/100A I-Automatic Loop Resistance Tester

(1) Iluphu kagesi ivuliwe, futhi akukho ukuphazamiseka kwenkambu kagesi okuqinile endaweni yokuhlola.Kulesi simo, njengoba imodi yokuhlukanisa i-voltage efakwa yi-amplifier ngokuyisisekelo ingu-0, inani lokuhlola eliboniswa ithuluzi liseduze no-0. Uma umhloli enolwazi olwanele lokuhlola inkambu, angahlulela ukuthi umugqa wokuhlola ongavamile we-voltage yensimbi isekethe ayijwayelekile futhi ibuyela ku-voltage yensimbi.Ngemva kokuba indlela yokuhlola engavamile ikhishiwe, umphumela wokugcina wokuhlola olungile ungatholakala.

(2) Ukuthintana kwesekhethi kagesi kubi.Ezimweni eziningi, amatheminali we-circuit breaker azokhiqiza ifilimu ye-oxide noma ifilimu kawoyela endaweni engaphandle yetheminali ngemva kokusebenza isikhathi eside.Lapho izinsimbi zokuhlola ama-voltage ezimelana namasekethe ziboshelwe emigqeni yetheminali enjalo, ukuthintana kabi kungenzeka.Lapho isiqeshana sokuhlola i-voltage ngokwaso sikhiqiza ukumelana okuthile kothintana naye, inani lokumelana nokuxhumana liyafana nenani lokumelana kwangaphakathi lesekethe yesampula ye-voltage.kuzoba nomthelela omkhulu emiphumeleni yokuhlolwa.

(3) Iluphu ye-voltage iyisekhethi evulekile noma othintana naye buthakathaka (uma isekethe ivuliwe, kungabonakala ukuthi ukumelana no-r1 akunamkhawulo), futhi kukhona ukuphazamiseka okunamandla kazibuthe kagesi endaweni yokuhlola, njengebhasi elibukhoma. .Ngalesi sikhathi, ibhasi elibukhoma lidlula ku-capacitor enomoya njenge-medium, liphazamisa imigqa yokuhlola i-voltage emibili yomhloli.Ngenxa yokuphazamiseka, imigqa yokuthola i-voltage yesihloli sokumelana ne-loop mibili.I-voltage yemodi ehlukile ivela ekugcineni.