Tidzawaukitsira mphamvu bwino kwa dziko

Kodi magetsi contactor imalamulira ndi galimoto magetsi?

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  • contactor ndi kulandirana lalikulu, kawirikawiri ntchito kusinthana panopa ndi galimoto magetsi kapena zina mkulu-mphamvu katundu.
  • Large Motors magetsi angatetezedwe zisaonongeke overcurrent pogwiritsa ntchito zimamuchulukira heaters ndi kulankhula zimamuchulukira. Ngati mndandanda-olumikizidwa heaters kupeza kotentha kuchokera panopa kwambiri, ndi zambiri-chatsekedwa zimamuchulukira kukhudzana adzatsegula, de-ndimalimbikitsidwa ndiponso zimandipatsa mphamvu ya contactor kutumiza mphamvu galimoto ndi.

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Pamene kulandirana ntchito kusinthana wambirimbiri mphamvu zamagetsi mwa ojambula ake, ndi kuwatchula dzina lapadera: contactor. Contactors ambiri ndi anzanu angapo, ndipo anzanu amene amakhala (koma osati nthawi zonse) bwinobwino-lotseguka, kotero kuti mphamvu katundu ndi kutchinga pamene koyilo ndi De-zikundithandiza. Mwina ambiri ntchito mafakitale kwa contactors ndi kulamulira Motors magetsi.

Pamwamba ojambula atatu kusinthana magawo ukubwera 3-gawo AC mphamvu ziwalo, amangoona osachepera 480 Volts kwa Motors 1 ndiyamphamvu kapena wamkulu. Kukhudzana wotsikitsitsa ndi "wothandiza" kukhudzana amene ali mlingo panopa m'munsi kuposa lalikulu ojambula galimoto mphamvu, koma actuated ndi armature mofanana ojambula mphamvu. Kukhudzana wothandiza kawirikawiri amagwiritsidwa ntchito mu dera kulandirana mfundo, kapena mbali zina za chiwembu galimoto kulamulira, amangoona kusintha 120 Volt AC mphamvu m'malo mwa injini voteji.

contactor wina akhoza kukhala ojambula angapo othandiza, kapena bwinobwino-lotseguka kapena zambiri, anatseka, ngati ankafuna. The atatu "anatsutsa-funso-chizindikiro" zooneka zipangizo mu nkhani ndi gawo lirilonse kupita galimoto akuitanidwira zimamuchulukira heaters. Aliyense "chotenthetsera" amafotokozera ndi otsika kukaniza Mzere wa zitsulo anafuna kutenthetsa monga galimoto Akuyandikira panopa. Ngati kutentha kwa aliyense wa zinthu izi chotenthetsera kufika mfundo yovuta (lofanana ndi overloading zolimbitsa a galimoto ya), nthawi zambiri-chatsekedwa lophimba kukhudzana (osati chitsanzo taperekachi) adzaphuka lotseguka. Izi kukhudzana zambiri-chatsekedwa imakhala mu mndandanda ndi koyilo kulandirana, kotero kuti pamene izo zimatsegula kulandirana adzakhala basi De-mphamvu, potero chikutsekeka mphamvu galimoto ndi.

Zimamuchulukira heaters ukunenedwa kuti ateteze overcurrent kwa Motors lalikulu magetsi, mosiyana breakers dera ndi mafyuzi zomwe cholinga chachikulu cha atetezedwe overcurrent kwa ochititsa mphamvu.

Zimamuchulukira chotenthetsera ntchito kawirikawiri sanamvetsedwe. Iwo sali mafyuzi; ndiko kuti, si ntchito zawo kufukiza poyera ndi mwachindunji kuswa dera monga lama fuyusi ndi lakonzedwa kuchita.

M'malo mwake, zimamuchulukira heaters yadaikidwa kuti thermally kutengera zochita za Kutentha khalidwe la makamaka galimoto magetsi kutetezedwa. Motors onse ndi makhalidwe ikukhudzana kuphatikizapo kuchuluka kwa mphamvu kutentha kwaiye resistive madyaidya ndikuledzera (I2R), ikukhudzana kutengerapo makhalidwe a moto "imachitika" kwa sing'anga yozizira kudzera chimango zitsulo za galimoto, ndi misa thupi ndi kutentha enieni zipangizo kupanga galimoto za, etc.

makhalidwe awa mimicked ndi zimamuchulukira chotenthetsera pamlingo kakang'ono: pamene galimoto ya heats kwa kutentha kwake yovuta, chomwechonso chotenthetsera kwa kutentha kwake yovuta, Choncho pa yemweyo mlingo ndi njira limaoneka lokongola. Choncho, zimamuchulukira kukhudzana, mu poona chotenthetsera kutentha ndi thermo-makina limagwirira, adzazindikira ndi analogue a galimoto weniweni. Ngati maulendo zimamuchulukira kukhudzana chifukwa kwambiri chotenthetsera kutentha, zidzakhala chizindikiro chakuti galimoto weniweni wafika kutentha kwake yovuta (kapena, mukanachita zimenezo kanthawi kochepa). Pambuyo tripping, heaters akuyenera ukhale pansi pa yemweyo mlingo ndi njira limaoneka lokongola ngati galimoto kwenikweni, kotero kuti iwo akusonyeza kuti chiwerengero cholondola cha chikhalidwe galimoto ndi ikukhudzana ndipo sadzalola mphamvu kuti adzathe ntchito mpaka galimoto ndi moona wokonzeka kuyamba kachiwiri.

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Contactor kwa atatu gawo magetsi galimoto, anaika pa gulu monga mbali ya dongosolo magetsi ulamuliro

Lasonyezedwa panoli ndi contactor kwa atatu gawo magetsi galimoto, anaika pa  gulu  monga mbali ya dongosolo magetsi ulamuliro pa boma madzi mankhwala zomera:

Zitatu gawo, 480 Volt AC mphamvu akudza mu zitatu kulankhula bwinobwino tsegula pa pamwamba pa contactor kudzera malo wononga olembedwa kuti "L1," "L2," ndi "L3" (The "L2" osachiritsika zobisika kuseri lalikulu ndi -shaped "snubber" dera chikugwirizana kudutsa malo koyilo ndi contactor a). Mphamvu galimoto ndi lotulukira pa zimamuchulukira chotenthetsera msonkhano pansi pa chipangizo izi kudzera malo wononga olembedwa kuti "T1," "T2," ndi "T3."

The zimamuchulukira chotenthetsera mayunitsi okha ndi wakuda, lalikulu woboola pakati midadada ndi chizindikiro "W34," kusonyeza makamaka matenthedwe poyankha kwa ena ndiyamphamvu ndi kutentha mlingo wa galimoto magetsi. Ngati magetsi galimoto yosiyanasiyana mphamvu ndi / kapena kutentha mavoti anayenera kukhala malo amene panopa mu utumiki, ndi mayunitsi zimamuchulukira chotenthetsera ayenera m'malo mayunitsi ndi kuyankha matenthedwe abwino kwa galimoto latsopano. The galimoto wopanga ingatithandize kudziwa pa yoyenera mayunitsi chotenthetsera ntchito.

A pushbutton woyera lili pakati pa "T1" ndi "T2" mzere heaters akutumikira monga njira pamanja kachiwiri anapereka bwinobwino-chatsekedwa lophimba kukhudzana ku boma mwake, chifukwa ndale ndi kumwetsa chotenthetsera kutentha. Waya kugwirizana kwa "zimamuchulukira" lophimba kukhudzana Timaona pa m'munsi-lamanja la chithunzi pafupi ndi chizindikiro kuwerenga "NC" (zambiri, anatseka). Pa zimamuchulukira wagawo makamaka ang'onoang'ono "zenera" ndi chizindikiro "Anamutchera Ndale" amasonyeza ndale chikhalidwe mwa mbendera wachikuda. Mu chithunzi ichi, palibe "ndale" chikhalidwe, ndi chizindikiro akuoneka bwino.


Post time: Aug-13-2018

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