Ukwahlukanisa u elana: isidingo izilinganiso

Uma ujwayelene ugesi nesihloko (ngisho kancane), kumele yaziwe futhi isici ezifana kagesi wiring ukwahlukanisa u elana metal izintambo. izinga ukwahlukanisa inquma ukuthembeka wiring, uhlelo kuqinisekisa nekusebenta bexhashazwa ngenxa into eziyifunayo. imithetho Operating ukhombise saziso ukubuyekezwa ngezikhathi we izinga elidingekayo ukuze ukwahlukanisa ukusebenza inqubo wiring esakhiwa ngo yokulinganisa ukumelana ngokusebenzisa phansi.

Amazinga avamile amasheke ezikhona ukwahlukanisa olusetshenziswe ekhaya nasemsebenzini ngu esikhethekile iziqondiso kagesi izinto. Phakathi kwabo, GOST, PUE (imithetho amadivayisi kagesi) nabanye. Kunoma yikuphi, lapho sihlolwa uMhloli Omkhulu ukwahlukanisa u elana kufanele kulinganiswe Megger. Idivayisi ine e ngezithako zawo umthombo voltage, umthombo resistances eyengeziwe kanye isilinganiso-imitha magneto-kagesi. Njengoba generator yamandla aphindeke kabili ye ukuthatha amandla, kodwa samuntu efanelekayo drive mathupha.

Njengoba megaommetry usebenza khona umthombo zamanje ngqo, kungenzeka ukunquma ukumelana ukwahlukanisa at voltage ephakeme. Kufanele singakhohlwa ukuthi esimweni yokuxhuma megger ekuhlolweni iyunithi, abonisa ukumelana kakhulu phansi, khona-ke kunciphe njengoba idivayisi okukhipha voltage wokulinganisa.

Kala ukumelana ukwahlukanisa kufanele ibe izigaba:

1. Voltage phezu kwengungu ngaphansi yokuhlola kumele ingabi.
2. Uma ukubaluleka ukumelana wesifunda akwaziwa, kubalulekile ukuthi iThreshold ka nezilinganiso seqiwe.
3. Sesiwancamulile noma vimbela ngokuphelele zonke izakhi wesifunda asebenzayo nge amazinga aphansi ukwahlukanisa, kuhlanganise capacitors, amadivayisi nge Semiconductors.
4. Ground circuit ngaphansi kovivinyo ngesikhathi wokulinganisa umsebenzi.
5. Ukudayisela amandla kuze kube megohmmeter ngamaminithi. Thatha ukufundwa esikalini zedivayisi.
6. Emva kokuqeda i-izilinganiso, imikhawulo idivaysi unqamula wesifunda, ukususa icala zanqwabelana kusukela indlela wesifunda isisekelo.

Yokukala ukwahlukanisa u elana yezindawo wiring nge capacitance Inani elikhulu kangcono kwenziwa emva ukumisa okuphelele oscillation ka pointer yomculo. Dimension e ukukhanyisa namandla kumanethikwekhi ugijima imodi ye yabo ukufakwa, labhubhisa out fuse-isixhumanisi bese ingaxhunyiwe kunethiwekhi umphumela kagesi abamukelayo.

Imithetho kungavunyelwe ukuba afeze izilinganiso emigceni wabeka ngakujantshi, engaphansi zinamandla okusezingeni eliphezulu, kanye banqatshelwe ukusebenza ezibaliwe uma kuduma izulu. Iningi ikakhulukazi ukumelana ukwahlukanisa kuthinta umbuso lokushisa. Kungalinganiswa ezingeni lokushisa 5 degrees noma ngenhla.

Kukhona ukufaka DC, lapho idivayisi ukulawula uba voltmeter yokulinganisa ukumelana ukwahlukanisa, kokuba ngezinga eliphezulu wokumelana kwangaphakathi. Kulokhu, ukubheka ukusebenza ezintathu izinhlobo zokucindezeleka: phakathi izingongolo, phakathi komhlaba isigxobo ngamunye.

Electricians abanolwazi kukhona amamodeli we-elekthronikhi amamitha megohm: F4101, F4102; basuke ingashintshwa sokuqhuba voltage 100, 500 no-1000 V Futhi ngokuhamba izinhlobo amadala megohm amamitha kusuka M4100 / 1 futhi M4100 / 5, MS-05.