Kusankhidwa kwa contactors kudzachitidwa molingana ndi zofunikira za zida zoyendetsedwa.Pokhapokha kuti voliyumu yogwirira ntchito idzakhala yofanana ndi voteji ya zida zoyimbidwa, kuchuluka kwa katundu, gulu logwiritsa ntchito, ma frequency ogwirira ntchito, moyo wogwirira ntchito, njira yoyika, kukula ndi chuma cha zida zoyipitsidwa ndizo maziko osankhidwa.
Contactors ntchito mndandanda ndi kufanana
Pali zida zambiri zamagetsi zomwe zimakhala zolemetsa zagawo limodzi ndipo, chifukwa chake, mizati ingapo ya ma multipole contactors angagwiritsidwe ntchito mu parallel.Monga ng'anjo yotsutsa, thiransifoma yowotcherera, etc.Ikagwiritsidwa ntchito mofanana, contactor yaing'ono imatha kusankhidwa. Komabe, tisaiwale kuti anagwirizana Kutentha panopa wa contactor pambuyo kufanana si kokwanira molingana ndi chiwerengero cha mitengo mu parallel.Izi ndi chifukwa kukana mfundo za yogwira, malo amodzi kukhudzana kuzungulira mwina si kofanana kwathunthu, kotero kuti zomwe zikuyenda motsatira zabwino sizigawidwa mofanana.Choncho, zamakono zimatha kuwonjezeka mpaka nthawi 1.8 mofanana, ndipo mizati itatuyo itatha kufanana, zamakono zimatha kuwonjezeka mpaka 2 mpaka 2.4.
Kuonjezera apo, ziyenera kuwonetsedwa kuti chifukwa cholumikizira pulasitiki sichingagwirizane ndi kuchotsedwa nthawi yomweyo pambuyo pa kufanana, luso logwirizanitsa ndi kulekanitsa silingapangidwe bwino.
Nthawi zina, mizati angapo a contactor angagwiritsidwe ntchito mndandanda, chifukwa cha kuchuluka kwa kukhudzana yopuma akhoza kugawa arc mu zigawo zambiri, kuwongolera arc kuzimitsa luso, ndi imathandizira kuzimitsidwa kwa arc.Choncho, mizati angapo akhoza ziwonjezeke mndandanda, koma sangathe upambana oveteredwa kutchinjiriza voteji wa contactor.The anagwirizana Kutentha panopa ndi oveteredwa ntchito panopa wa contactor mu mndandanda sadzasintha.
Zotsatira za kuchuluka kwa magetsi
Kwa dera lalikulu, kusintha kwafupipafupi kumakhudza khungu, ndipo zotsatira za khungu zimawonjezeka pafupipafupi.Pazinthu zambiri, 50 ndi 60 Hz zimakhudza kwambiri kutentha kwa dera la conductive.Mapangidwe a 50 H achepetsa mphamvu ya maginito yamagetsi pa 60 Hz, ndipo kuyamwa kudzachepetsedwa.Kaya kugwiritsidwa ntchito kumadalira malire a mapangidwe ake.Mwachizoloŵezi, wogwiritsa ntchitoyo ndi bwino kuti agwiritse ntchito molingana ndi mtengo wake woyezera ndi kuyitanitsa malinga ndi kuchuluka kwa mphamvu zogwiritsira ntchito.
Zotsatira za kuchuluka kwa ntchito
Chiwerengero cha ola ntchito m'zinthu contactors zimakhudza kwambiri kuwotcha imfa ya ojambula, kotero chidwi ayenera kulipira kusankha.Zomwe zimagwiritsidwa ntchito pafupipafupi zimaperekedwa muzochita zamakono za contactors.Pamene nthawi yeniyeni yogwiritsira ntchito zipangizo zamagetsi ndipamwamba kuposa mtengo woperekedwa, wothandizira ayenera kuchepetsa mtengo wotsika.
Kusankhidwa kwa ma contactor a AC owongolera zida zamagetsi zamagetsi
Zida zamtunduwu zimakhala ndi ng'anjo yotsutsa, kutentha kwa kutentha, ndi zina zotero. Kusinthasintha kwamakono kwa katundu wotero ndi kochepa kwambiri, komwe ndi kwa AC-1 malinga ndi gulu la ntchito.The contactor akhoza kulamulira katundu wotero mosavuta, ndipo ntchito si frequent.Choncho, posankha contactor, bola ngati anagwirizana Kutentha panopa Ith wa contactor ndi wofanana kapena wamkulu kuposa 1.2 nthawi ntchito panopa zida matenthedwe magetsi. Chitsanzo 1: A contactor amasankhidwa kulamulira 380V ndi 15KW atatu gawo Y woboola pakati HW.Solution: choyamba kuwerengera oveteredwa ntchito panopa Ie aliyense gawo.The Ith = 1.2Ie = 1.2 × 22.7 = 27.2A motero amasankha mtundu uliwonse wa contactor ndi anagwirizana kutentha panopa Ith≥27.2A.Mwachitsanzo: CJ20-25, CJX2-18, CJX1-22, CJX5-22 ndi zitsanzo zina.
Kulamulira kusankha contactors kwa zipangizo kuyatsa
Pali mitundu yambiri ya zida zowunikira, mitundu yosiyanasiyana ya zida zowunikira, kuyambira masiku ano ndi nthawi yoyambira ndizosiyana.Katundu wotere amagwiritsa ntchito gulu la AC-5a kapena AC-5b.Ngati nthawi yoyambira ili yochepa kwambiri, kutentha komwe kumagwirizanako Ith kuli kofanana. mpaka 1.1 nthawi zogwirira ntchito zida zowunikira Ie.Ngati nthawi yoyambira ndi yotalikirapo pang'ono ndipo mtengo wake ndi wochepa, kutentha komwe kumagwirizanako kumakhala kokulirapo kuposa momwe zida zowunikira zimagwirira ntchito, tchulani Table 1. Table 1 Mfundo yosankha yolumikizira zida zowongolera zowunikira No. magetsi COS kuyamba nthawi min contactor kusankha mfundo
Nthawi yotumiza: Mar-01-2022
