I-FAQ yokuhlolisisa ukumelana kokufakelwa

Umhloli wokumelana wokufakelwa ulungele ukukala inani lokumelana nezinto zokwakha ezahlukahlukene kanye nokulwa kwezinto eziguqukayo ze-transformers, ama-motor, amakhebuli kanye nemishini kagesi ukuqinisekisa ukuthi le mishini isebenza esimweni esijwayelekile futhi igwema izingozi ezinjengokushaqeka kukagesi ukulimala nokulimala kwemishini.

Izinkinga ezivamile zokuhlolisisa ukumelana kokufakelwa ngokulandelayo:

1

Ukukhishwa okufushane-umbungu wamanje we-Insuration Revance Tester ungakhombisa ukumelana kwangaphakathi komthombo ophakeme we-voltage.

Izinto eziningi zokuhlolwa kokufakwa yimithwalo ye-capacitive, njengezintambo ezinde, ama-motors ane-windings amaningi, ama-transformers, lapho into elinganisiwe inekhono, umthombo ophakeme wenqubo yokuhlola, umthombo ophakeme we-voltage kumhloli wokumelana nokungena ngaphakathi kufanele ukhokhise I-capacitor ngokusebenzisa ukumelana kwayo kwangaphakathi, futhi kancane kancane ikhokhise ugesi endaweni ekhiqizwayo ephezulu ye-voltage value yomhloli wokumelana wokufakelwa. Uma inani le-capacitance lento elinganisiwe likhulu, noma ukumelana kwangaphakathi komthombo ophakeme we-voltage kukhulu, inqubo yokushaja izothatha isikhathi eside.

Ubude bawo bunganqunywa ngomkhiqizo we-R noC Layisha (ngemizuzwana), okungukuthi t = r umthwalo.

Ngakho-ke, ngesikhathi sokuhlolwa, umthwalo we-capacitive udinga ukukhokhiswa kumandla kagesi wokuhlola, futhi i-DV yokushaja i-DV / DT ilingana nesilinganiso sokushaja okwamanje I-I-Capacitance C. I-DV / DT = I / C. I / C.

Ngakho-ke, okuncane okuvimbela ukungaphakathi kwangaphakathi, kukhulu ukushaja kwamanje, futhi okusheshayo nokuzinzile komphumela wokuhlola.

2. Uyini umsebenzi we- "G" ukuphela kwensimbi? Endalweni yokuhlola yamandla kagesi aphezulu kanye nokumelana okuphezulu, kungani ithuluzi lixhumeke kwisiginali se- "G"?

Ukuphela kwensimbi "g Ukuphela kwensimbi "G" yensimbi ukudlula kwamanje okuvuza ebusweni bento ehloliwe, ukuze kudlule indawo yokuvuza kungadluli ngokujikeleza kwesivivinyo sensimbi, kuqede iphutha elibangelwa yisikhathi sokuvuza. Lapho uvivinya inani eliphakeme lokumelana, ukuphela kwe-G kudinga ukusetshenziswa.

Ngokuvamile, i-G-terminal ingabhekwa lapho iphakeme kune-10G. Kodwa-ke, leli banga lokumelana aliphelele. Ihlanzekile futhi yomile, futhi ivolumu yento okufanele ilinganiswe incane, ngakho-ke ingazinza ngaphandle kokulinganisa ama-500g ku-G-END; Endaweni emanzi futhi engcolile, ukumelana okuphansi kudinga futhi isiginali se-g. Ngokukhethekile, uma kutholakala ukuthi umphumela unzima ukuba uzinze lapho ulinganisa ukumelana okuphezulu, i-G-terminal ingabhekwa. Ngaphezu kwalokho, kufanele kuqashelwe ukuthi i-terminal g evikelekile ayixhunyiwe kungqimba lokuvikela, kepha ixhunywe kwi-insulator phakathi kwe-L ne-E, noma ku-Multind Strand Wire, hhayi ezinye izintambo ngaphansi kovivinyo.

3. Kungani kudingekile ukukala hhayi ukumelana okumsulwa kuphela, kodwa futhi nokulinganisa isilinganiso sokulinganisa kanye ne-polarization nendex lapho kulinganisa ukufakwa?

I-PI yinkomba ye-polarization, esho ukuqhathanisa ukumelana kokufakelwa emizuzwini eyi-10 naku-1 umzuzu ngesikhathi sokuhlolwa kokufakwa;

I-DAR iyisilinganiso sokutholwa kwe-dielectric amunctric, esisho ukuqhathanisa phakathi kokumelana kokufakelwa emzuzwini owodwa nokuthi ku-15s;

Esivivinyweni sokufakwa, inani lokumelana nokufakelwa ngesikhathi esithile alikwazi ukubonisa kahle ikhwalithi yokusebenza kokufakwa kwento yokuhlola. Lokhu kungenxa yezizathu ezimbili ezilandelayo: Ngakolunye uhlangothi, ukumelana nokufakelwa kwezinto ezifanayo zokufakwa kokunye kuncane lapho ivolumu inkulu, futhi inkulu khona lapho ivolumu incane. Ngakolunye uhlangothi, kukhona imali ekhokhwayo yokuvuselelwa kanye nezinqubo ze-polarization ngezinto zokufaka insulating lapho kufakwa i-voltage ephakeme. Ngakho-ke, uhlelo lwamandla ludinga ukuthi isilinganiso sokumuncwa (ama-R60s siye ku-R15s) kanye ne-polarization index (R10min to R1min Index (R10min to R1min) kufanele lilinganiswe ekuhlolweni kokufakwa kwe-transformer main, ikhebula, futhi isimo sokufakelayo singahlukwa le datha.

4. Kungani amabhethri amaningana e-elektroniki yokumelana nokumelana ngogesi akhiqiza i-High DC Voltage? Lokhu kusekelwe emgomeni wokuguqulwa kwe-DC. Ngemuva kokukhulisa ukucubungula umjikelezo wesifunda, i-Lower Supply Vertage iphakanyiswe ku-voltage ephakeme ye-DC. Yize i-voltage ephakeme ekhiqizwayo iphakeme, amandla okukhipha incane (amandla aphansi kanye namanje).

QAPHELA: Noma ngabe amandla amancane kakhulu, akunconywa ukuthi athinte uphenyo wokuhlola, usazobe usaba khona.