Njira yodziwira kukana:

Choyamba, kuyang'ana mawonekedwe

Yang'anani kuti zizindikirozo ndi zomveka bwino, utoto wotetezera umakhala wosasunthika, wopanda kutentha, zipsera, ming'alu ndi dzimbiri, ndipo resistor ikugwirizana kwambiri ndi pini. Kwa potentiometers, muyenera kuyang'ananso kuti shaft yozungulira imasinthasintha, yotanuka komanso yabwino. Ngati pali kusintha, fufuzani ngati kusinthako kuli koyenera, ndi zina zotero.

Chachiwiri, kudziwa multimeter

1. Poweruza ngati kukana kuli kwabwino kapena koyipa ndi pointer multimeter, choyamba muyenera kusankha zida zoyezera, ndiyeno muyike knob ya zida zokulira mu zida zoyenera. Nthawi zambiri, zida za RX1 zitha kusankhidwa zodzitchinjiriza pansi pa 100 ohms, zida za RX10 zotsutsa pakati pa 100 ohms ndi 1kohms, zida za RX100 za resistors pakati pa 1kohms ndi 10kohms, zida za RX1K zotsutsa pamwamba pa 100kohms.

2. Pambuyo posankha zida zoyezera, sungani zida zotsutsa za multimeter ku 0. Njira yowonetsera 0 ndi: kufupikitsa zitsulo zazitsulo zazitsulo ziwiri za multimeter, ndikuwona ngati pointer ikufika pa 0. Ngati sichili pamalo a 0, sinthani cholozera cha zero chosinthira kuti muloze pomwe pali 0 pamlingo wotsutsa.

3. Kenaka, gwirizanitsani ma probes awiri a multimeter ku malekezero awiri a resistor motsatira, ndipo zofufuzazo ziyenera kuloza ku mlingo wotsutsana wotsutsana. Ngati ma probes ndi osasunthika komanso osasunthika, kapena mtengo wosonyezedwa umasiyana kwambiri ndi mtengo womwe wasonyezedwa pa resistor, zikutanthauza kuti resistor yawonongeka.

4. Poweruza ngati kukana kuli bwino kapena koipa ndi multimeter ya digito, choyamba sinthani chingwe cha gear cha multimeter ku gear yoyenera ya ohm gear. Nthawi zambiri, magiya a 200 amatha kusankhidwa otsutsa omwe ali pansi pa 200 ohms, 200-2K ohms amatha kusankhidwa magiya a 2k, 20-20K ohms amatha kusankhidwa magiya 20k, 200K-200M ohms amatha kusankhidwa 2M ohms. Kukana kwa 2M-20M ohm ndi 20M, ndipo kukana kwa 20M ohm kapena kupitirira ndi 200M.

Zomwe zafotokozedwa pamwambapa ndi njira yodziwira mtundu wa kukana. Kupyolera mu njira zosavuta zodziwirazi, mumatha kuzindikira mwamsanga ubwino wa kukana, zomwe zimabweretsa kumasuka kwakukulu kwa ntchito yanu.

Chochitika ndi chiyani pamene kukana kwatha?

Kukaniza kukasweka, nthawi zambiri kukana kumakhala kokulirapo, ndipo ena amakhala ochepa, kapena ambiri amakhala otseguka.

Kodi ndi chizindikiro chanji chomwe kukana kwa blower kwasweka?

Kukaniza kwa blower kumayang'anira kwambiri liwiro la chowuzira. Ngati kukana kwa blower kwathyoka, liwiro la chowombera limakhala lofanana pamagiya osiyanasiyana. Kukana kwa blower kutasweka, koboti yowongolera voliyumu ya mpweya imataya ntchito yake yowongolera liwiro. Zidzatsogolera kulephera kusintha mpweya wotuluka; Palibe zida za 1234, mpweya umodzi wokha; Iyenera kukhala yotulutsa mpweya waukulu; Palinso mafani ena omwe sagwira ntchito mwachindunji.

Pamene varistor ndi yachibadwa, kukana kwake sikungatheke. Imalumikizidwa mofanana pa malekezero onse a magetsi, omwe amasewera chitetezo cha overvoltage. Mphamvu yolowera ikadutsa mtengo wina, kukana kwake kumakhala kocheperako, kumapangitsa kuti dera likhale lalifupi, kufupikitsa fuyusi mokakamiza, ndikuchita ntchito yoteteza zida zamagetsi. M'mikhalidwe yabwino, inverter yofulumira silicon ndiyosavuta kuswa. Ngati silicon yokonzansoyo yathyoledwa, pakhoza kukhala kuwonjezereka kwadzidzidzi kapena kupitirira. Chifukwa cha chisokonezo choyambitsa chifukwa cha kusokonezeka kwa katundu ndi kusinthasintha kwa mphamvu, silicon yokonzanso idzawonongekanso, ndipo mavuto enieni amayenera kuwunikidwa molingana ndi momwe zowonongekazo.

Chifukwa chomwe kukana kwa mafani a air conditioner yamagalimoto kumayaka mosalekeza;

1, kompresa kapena kuwongolera dera chifukwa chafupikitsa.

2, condenser motor, compressor electromagnetic clutch, evaporator motor kulephera.

3. Fusesi ya fan air conditioning ya galimoto sichikwaniritsa zofunikira, ndipo mtengo wamakono ndi wochepa.

4. Pali kachigawo kakang'ono kamene kamakhala kamene kamakhala kamene kamakhala kamene kamakhala kamene kamayamba chifukwa cha katundu wambiri wa compressor.