Yankho: Ili ndi funso lomwe opanga ambiri amasankha kufunsa, ndipo yankho lomwe limadziwika kwambiri ndi "chifukwa njira yodzitetezera imalankhulira." Ngati mungamvetsetse kwambiri maziko a malamulo oteteza magetsi, mupezapo udindo. ndi tanthauzo. Ngakhale kuyesedwa kwamagetsi kumatenga kanthawi kochepa pa mzere, kumakupatsani mwayi wochepetsa kubwezeretsanso kwa malonda chifukwa cha zoopsa zamagetsi. Kukhala ndi nthawi yoyamba ndi njira yoyenera yochepetsera ndalama ndikusunga zabwino.
Yankho: Kuyesa kwa magetsi kumagawika m'zinthu zinayi zotsatirazi: Kuyeserera kwa Diertric: Kuyeserera kwa Hiplec: Kuyeza kwa magetsi kumagwiritsa ntchito magetsi kwambiri ku mabwalo ndi masitepe ake akuwonongeka. Kuyesa Kukana Kulembetsa: Kuyeza magetsi osokoneza bongo. Kuyesa kwaposachedwa: Dziwani ngati kutaya kwa magetsi a AC / DC ku Term terminal kumapitilira muyeso. Malo otetezedwa: Kuyesa ngati nyumba zopezeka zachitsulo zimakhazikika.
Yankho: Pofuna kuteteza opanga mu opanga kapena labotolories, idachitidwa ku Europe kwa zaka zambiri. Kaya ndi opanga ndi opanga zamagetsi, zinthu zaukadaulo zamagetsi, zida zamakono, zida zopangira kapena zida zina, en, zomwe zimaphatikizapo mayeso oyeserera (ogwira ntchito) Malo, malo a zida, malo osungirako zinthu), zida za zida (zowoneka bwino "zoopsa" kapena malo osokoneza bongo, komanso kusokonekera kwa magetsi kwa zida zilizonse zoyeserera (IEC 61010).
A: Kupirira magetsi oyeserera kapena mayeso oyeserera am'madzi) ndi muyezo wa magetsi (monga ogwiritsa ntchito magetsi a 100%) a Jsi Mabungwe otetezeka) Ndi mayeso odziwika bwino komanso omwe nthawi zambiri amapangira. Kuyesedwa kwa Hip ndi mayeso owononga kuti mudziwe kuti zida zamagetsi zopepuka ndizokwanira kuwunika kwa magetsi apamwamba, ndipo mayeso a voliyumu omwe amagwiritsidwa ntchito ku zida zonse kuti awonetsetse kuti zinthu zokhazikika ndizokwanira. Zifukwa zina zothandizira kuyezetsa ndikuti zitha kudziwa zolakwika monga kusakwanira monga mitunda yosakwanira ndi chilolezo chomwe chachitika pakupanga.
Yankho: Nthawi zambiri, voltoge souform mu dongosolo lamphamvu ndi funde la sine. Pa ntchito yamagetsi dongosolo, chifukwa cha kugunda kwa mphezi, opaleshoni, zolakwika zomwe zimafananira ndi zida zamagetsi; Overvoltage imatha kugawidwa m'magawo awiri malinga ndi zomwe zimayambitsa. Imodzi ndi yolemetsa yoyambitsidwa ndi kugunda kwa mphezi kapena kuwunika kwa mphezi, komwe kumatchedwa kuti kunjaku. Kuchuluka kwa chiwopsezo cha chiwopsezo cham'mapapo komanso chitsimikizo mphamvu ndichachikulu, ndipo kutalika kuli kochepa kwambiri, komwe kumakhala kowononga kwambiri. Komabe, chifukwa mitsinje yapamwamba ya 3-10kv ndi m'munsi mwa matauni okhala ndi mafakitale ambiri amatetezedwa ndi nyumba zolembedwa kapena nyumba zazitali, kuthekera kwa kumenyedwa mwachindunji, komwe kumakhala kotetezeka kwambiri. Komanso, zomwe takambirana pano ndi zida zamagetsi zapadera, zomwe sizili mkati mwa zomwe zatchulidwazi, ndipo sizingafotokozedwenso. Mtundu winawo umachitika chifukwa cha kutembenuka kwamphamvu kapena kusintha kwamphamvu mkati mwa magetsi, monga kukonza malo osasunthika, kudula marc oyenda, ndipo gawo la arc lokhazikika. Kupitilira kwamkati ndi maziko akulu oti mudziwe kuchuluka kwa zida zamagetsi zamagetsi. Ndiye kuti, mapangidwe a zochulukitsa a mankhwalawo sayenera kuonetsera osati magetsi okhawo komanso osokoneza bongo a malo omwe amagwiritsidwa ntchito. Kuyeserera kwa magetsi ndikuzindikira ngati kapangidwe kazinthu kamene kamagulitsa kumatha kupirira zopitilira muyeso wa magetsi.
A: Nthawi zambiri mumatha kuyesa ma acke ndizovomerezeka kwa mabungwe otetezeka kuposa DC ndikulimbana ndi magetsi. Cholinga chachikulu ndikuti zinthu zambiri zoyesedwa zimagwira ntchito yolimba pansi pa ma ac, ndipo mayeso a magetsi amapezeka kuti asinthidwe, zomwe zili pafupi ndi kupsinjika komwe kumakumana nawo. Popeza mayeso a AC sichingabweze katundu, kuwerenga komweko kumangokhala chimodzimodzi kuyambira kumayambiriro kwa magetsi kumapeto kwa mayeso. Chifukwa chake, palibe chifukwa chomangira voliyula kuchokera kulibe mavuto okhazikika omwe amafunikira kuwunika kuwerenga kwamakono. Izi zikutanthauza kuti pokhapokha ngati malonda atapepuka mphamvu ya magetsi mwadzidzidzi, wogwiritsa ntchitoyo akhoza kugwiritsa ntchito magetsi athunthu ndikuwerenga zamakono osadikirira. Popeza vol vol volt silipiritsa katunduyo, palibe chifukwa chobwezera chipangizocho mutayesedwa.
A: Mukamayesa katundu wapamwamba, zomwe zilipo zonse zimakhala ndi mafunde owuma komanso osata. Kuchuluka kwa zomwe zilipo ndizokulirapo kuposa kutaya koona komwe kumachitika, kungakhale kovuta kudziwa zinthu zomwe zili ndi mwayi wapamwamba kwambiri. Mukamayesa katundu wamkulu, zomwe zikufunika kwathunthu kuposa kutaya komwe kulipokha. Izi zitha kukhala zoopsa kwambiri monga wothandizirayo amawonekera pa mafunde
Yankho: Chidacho choyesedwa (chatch) chimakhala cholipiritsa chokwanira, chowoneka chowoneka bwino. Izi zimapangitsa kuti ma cc a roseter atseke kuti awonetse bwino kutaya kwenikweni kwa malonda omwe akuyesedwa. Chifukwa choti kulipira kwapano ndi kwakanthawi, zofuna za DC ndikulimbana ndi magetsi nthawi zambiri zimakhala zosachepera pomwe pali ma voti a magetsi omwe amagwiritsidwa ntchito poyesa zomwezo.
Yankho: Popeza DC ikupirira mayeso a magetsi amaitanitsa kuti ntchitoyo ithe, kuti muchepetse chiopsezo chamagetsi kuti muchepetse kuyesa kwa magetsi pambuyo poyesa. Kuyesedwa kwa DC kukulamulira. Ngati Surk imagwiritsanso ntchito mphamvu ya ac, njira ya DC siyisintha momwe zinthu ziliri.
A: Pali mitundu iwiri yolimbana ndi magetsi am'madzi: ma ac ndikulimbana ndi magetsi am'madzi ndipo DC Kulimbana ndi magetsi. Chifukwa cha mawonekedwe a zinthu, kuwonongeka kwa magetsi kwa ac ndi magetsi a DC ndizosiyana. Zida zambiri komanso machitidwe ndi machitidwe ndi mitundu yosiyanasiyana. Mphamvu ya ma ac yoyesedwa itagwiritsidwa ntchito kwa iyo, voliyumu idzagawidwa molingana ndi magawo monga dielect yosalekeza ndi miyeso ya zinthuzo. Pomwe DC Vorusing imangogawa magetsi molingana ndi kukana kwa nkhaniyo. Ndipo kwenikweni, kuwonongeka kwa kapangidwe kokhazikika kumachitika chifukwa cha kusokonezeka kwamagetsi, kuwonongeka kwamagetsi, kuwonongeka kwa mafuta, kutulutsa kwina nthawi yomweyo, ndipo nkovuta kuwaletsa kwathunthu. Ndipo mphamvu ya ma ac imachulukitsa kuthekera kwa kusokonekera kwa mafuta pa DC Magetsi. Chifukwa chake, timakhulupirira kuti ma acja amapirira mayeso okhwima kuposa DC ndikulimbana ndi magetsi. Mukuchita opareshoni yeniyeni, mukamakwaniritsa mayeso opirira magetsi, ngati DC imagwiritsidwa ntchito poyeserera magetsi oyeserera, magetsi oyeserera amafunika kukhala apamwamba kuposa magetsi pafupipafupi. Magetsi oyeserera a DC General DC Kuyezetsa magetsi kumachulukana ndi nthawi zonse K ndi phindu la magetsi a ma ac. Kudzera mayeso, tili ndi zotsatirazi: za waya ndi zopangidwa ndi zingwe, k nthawi zonse ndi 3; pakupanga mafakitale a aviona, k nthawi zonse ndi 1.6 mpaka 1.7; CSA nthawi zambiri amagwiritsa ntchito 1.414 kwa zinthu za anthu wamba.
Yankho: Mphamvu yamagetsi yomwe imatsimikizira mayeso opirira magetsi amatengera msika wanu kuti alowemo, ndipo muyenera kutsatira mfundo zachitetezo kapena malamulo omwe ali gawo la malamulo olamulira dziko. Magetsi oyeserera ndi nthawi yoyeserera yopirira magetsi amakambidwa muyezo wotetezeka. Mkhalidwe wabwino ndikufunsa kasitomala wanu kuti akupatseni zofunika mayeso. Magetsi oyeserera opirira mayeso a voliyumu ndi awa: Mphamvu yamagetsi iyi imagwiritsidwa ntchito kwa mphindi imodzi. Mwachitsanzo, pazinthu zomwe zikugwira ntchito pa 230V, magetsi oyesedwa ndi 1460v. Ngati nthawi yamagetsi itafupikitsidwa, magetsi oyeserera ayenera kuchuluka. Mwachitsanzo, zoyeserera zopanga ku UL 935:
| kakhalidwe | Nthawi Yofunsira (masekondi) | kugwiritsa ntchito magetsi |
| A | 60 | 1000v + (2 x v) |
| B | 1 | 1200v + (2.4 x v) |
| V = magetsi okwanira | ||
A: Mphamvu ya hipti ya hiset imanena za mphamvu zake. Kutha kwa ma volter tester teshter kumatsimikiziridwa ndi kutulutsa kokwanira kwa X X kumapangitsa magetsi otulutsa. Mwachitsanzo: 5000vx100ma = 500va
A: Mphamvu zoyeserera za chinthu choyesedwa ndi chifukwa chachikulu chosinthira pakati pa zikhalidwe za AC ndi DC ndikulimbana ndi magetsi. Makina osochera awa sangathe kupembedza ndi kuyesa ndi AC, ndipo padzakhala zikuyenda mosalekeza kudzera mu cacacactactactanti yosocherera. Ndi mayeso a DC, kamodzi kovuta pa Surk ndi mlanduwu, zomwe zimatsalira ndizomwe zimangotuluka kumene za ntchito. Chifukwa chake, mtengo wamakono umayesedwa ndi ma accho mayeso amagetsi ndi DC ndikulimbana ndi mayeso oyeserera.
Yankho: Omasulira sakhala ochititsa chidwi, koma kwenikweni palibe zinthu zothandizira zomwe sizikuchititsa kuti sizikuchititsa. Pazinthu zilizonse zopatsa, pomwe mphamvu yamagetsi imagwiritsidwa ntchito pa iyo, yomwe ili pano nthawi zonse imadutsa. Gawo logwira ntchito pano limatchedwa kutayidwa pano, ndipo izi zimatchedwanso kutulutsa kwamiyala. Pakuyeserera zida zamagetsi, kutayika kwamakono kumatanthauza zomwe zimapangidwa ndi sing'anga zapakatikati kapena malo omwe ali pakati pa zitsulo zomwe zimapangitsa kuti zikhale ndi ziwalo zam'madzi popanda ziwalo zamphamvu pakalibe magetsi olakwika. ndiye kutaya kwamakono. Malinga ndi US Ul muyezo, kutayika kwa masiku ano ndi komwe kumatha kuchitika kuchokera ku magawo omwe apezeka m'magulu apanyumba, kuphatikizapo m'chipinda chambiri chanyumba. Kutayikira komwe kumaphatikizapo magawo awiri, gawo limodzi ndi lolumikizana lomwe lili pano kudzera pakuthana; Gawo linalo ndikuchotsa ndalama zomwe zimaperekedwa, zomwe zimaperekedwa, zomwe zidachitika kwambiri ndi XC = 1 / 2pfc ndipo ndizofanana ndi kuchuluka kwa mphamvu, ndipo ndalama zomwe zidagawidwapo. kuchuluka, motero kutayikira komwe kumawonjezeka ndi pafupipafupi kwa magetsi. Mwachitsanzo: Kugwiritsa ntchito thyristor kuti akagule magetsi, kuphatikiza kwake kwa Harmonic kumawonjezera kutaya kwamakono.
A: Kupirira magetsi magetsi ndikuwona kutaya komwe kumachitika kudzera mu kusintha kwa chinthucho, ndikugwiritsa ntchito magetsi kwambiri kuposa makina ogwiritsira ntchito makina osokoneza; Pomwe mphamvu yamphamvu yamphamvu (yolumikizirana yomwe ilipo) ikuwona kutaya kwazinthu zomwe zili mkati mwa chinthucho poyesedwa. Yesetsani kutayikira kwa chinthu chomwe chayesedwa pansi pa zoyipa kwambiri (magetsi, pafupipafupi). Mwachidule, kutayikira kwamakono kwa mayeso opirira ma voliyumu ndiko kusuta komwe kumayesedwa popanda magetsi ogwirira ntchito, komanso kutulutsa kwamphamvu (kulumikizidwa kwamakono) ndi njira yomwe imayesedwa mokwanira.
A: Pazinthu zamagetsi zamagetsi zosiyanasiyana, muyeso wokhudzana ndi zamakono zilinso ndi zofunikira, koma kuchuluka, kukhudzana komwe kumatha kulowa pansi pakadali pano -Tikutsani mzere wamakono wamakono
Yankho: Zida zachitsulo zopezeka kapena zotsekereza zamagetsi zopangidwa ndi zamagetsi zomwe ndimapanga zimayeneranso kukhala ndi chinsinsi chokhazikika ngati chitetezero chotsutsana ndi kufalikira kwa magetsi. Komabe, nthawi zambiri timakumana ndi ogwiritsa ntchito omwe amagwiritsa ntchito zida za kalasi ya kalasi ngati zida za kalasi, kapena mwachindunji. Ngakhale zili choncho, ndiye udindo wa wopanga kupewa ngozi kwa wosuta yemwe wayambitsa izi. Ichi ndichifukwa chake kuyesedwa kwapano kwachitika.
A: Pa ma ac oyeserera magetsi, palibe muyezo chifukwa cha mitundu yosiyanasiyana ya zinthu zomwe zayesedwa, kupezeka kwa zovuta zoyesedwa, komanso magetsi osiyanasiyana, ndiye kuti palibe muyezo.
Yankho: Njira yabwino yodziwira magetsi oyeserera ndikuyiyika malinga ndi zomwe zikufunika pakuyesa. Nthawi zambiri, tikhazikitsa magetsi oyenerera malinga ndi 2 magetsi ogwirira ntchito pret 1000v. Mwachitsanzo, ngati magetsi ogwiritsira ntchito mafuta ndi 115vac, timagwiritsa ntchito 2 x 11000 + 1000 = 1230 vol vol voliyumu. Zachidziwikire, voliyumu yoyeserera imakhalanso ndi makonda osiyanasiyana chifukwa cha ma grade osiyanasiyana a zigawo.
A: mawu atatu awa onse ali ndi tanthauzo lofanana, koma nthawi zambiri amagwiritsidwa ntchito mosiyanasiyana poyeserera.
Yankho: Kusakaniza kwa chinsinsi ndi kupirira magetsi opirira ndizofanana kwambiri. Ikani magetsi a DC mpaka 1000V ku mfundo ziwirizo kuti ziyesedwe. Kuyesa kwa IR nthawi zambiri kumapereka mtengo wokana ku Megohms, osati pass / kulephera kuchokera ku mayeso akuimba. Nthawi zambiri, magetsi oyeserera ndi 500v DC, ndipo kukana (sikuti amaletsa (IR) phindu locheperako. Chiyeso choletsa kukakamizidwa ndi mayeso owononga ndipo amatha kuzindikira ngati chinyengo ndichabwino. Mu zojambula zina, mayeso okakamira amachitika koyamba kenako ndikutha kuyesedwa magetsi. Chiyeso chokakamizika chimalephera, kuyesera kwa magetsi nthawi zambiri kumalephera.
Yankho: Kuyesa kulumikizana kwa nthaka, anthu ena amadzitcha kuti apitirize (gawo lapansi) kuyesedwa, kumayesa kum'pumula pakati pa rack ndi positi. Kuyesa kwa Brond Concor kumatsimikizira ngati malo ogulitsira a Supple angagwire bwino cholakwa chapano ngati malonda alephera. Mtondo wolumikizira wapansi udzatulutsa ma 30a DC yaposachedwa kapena AC RMS yaposachedwa (CSA imafuna muyeso wa ma 40a) kudzera mugawo lapansi kuti adziwe zomwe zili pansi, zomwe zili m'munsi 0,1.
Yankho: Kuyesa kwa IR ndi mayeso oyenerera omwe amapereka chisonyezo cha makina osokoneza bongo. Nthawi zambiri zimayesedwa ndi magetsi a DC ya 500V kapena 1000v, ndipo zotsatira zake zimayesedwa ndi kukana kwa megohm. Kupirira magetsi kumagwiritsanso ntchito mphamvu yayitali ku chipangizocho poyesedwa (Sukulu), koma magetsi omwe ali okwera kuposa mayeso a IR. Itha kuchitika ku AC kapena magetsi a DC. Zotsatira zimayesedwa mu miliamps kapena microamps. Pazowonjezera zina, kuyesa kwa ir kumachitika koyamba, kutsatiridwa ndi kuyesedwa kwa magetsi. Ngati chipangizo choyesedwa (Chatch) chimalephera mayeso a IR, chipangizocho choyesedwa (chaukadaulo) chimalepheranso kulekanitsa magetsi pamagetsi apamwamba.
Yankho: Cholinga cha kuyesedwa kompopompo ndikuwonetsetsa kuti waya woteteza ukhoza kupirira njira yolakwika yamakono kuti mutsimikizire chitetezo cha ogwiritsa ntchito ngati zida. Mphamvu ya chitetezo chodziyimira imafuna kuti mphamvu yamagetsi yotseguka isachitike. Kamodzi kuti kuyesa kwa mayeso kumachitika, wogwiritsa ntchitoyo akhoza kuchepetsedwa ku chiopsezo chamagetsi. Muyezo wa General amafunika kuti kukana kwa nthaka kuyenera kukhala kochepera 0,1Ohm. Ndikulimbikitsidwa kugwiritsa ntchito kuyesa kwa ACS ndi pafupipafupi kwa 50hz kapena 60hz kuti mukwaniritse malo omwe akugwira ntchito.
A: Pali zosiyana pakati pa chopirira magetsi oyeserera ndi mayeso a mphamvu, koma mwachidule, kusiyana kumeneku kumatha kufotokozedwa mwachidule motere. Kupirira ma voliyumu magetsi ndikugwiritsa ntchito magetsi kwambiri kuti akakamize za chinthucho kuti adziwe ngati mphamvu yolimba ya malonda ndikukwanira kuti muchepetse kutayikira kwambiri. Kuyesedwa kwaposachedwa ndikuyeza kutaya kwamakono komwe kumatuluka kudzera muzinthu zomwe zili muzovuta wamba komanso zosakwatiwa.
Yankho: Kusiyana kwa nthawi yotuluka kumadalira mphamvu ya chinthu choyesedwa ndikuyimitsa madera opirira magetsi. Kuchuluka kwa mphamvu, nthawi yayitali yoyikika imafunikira.
A: Chipangizo cha kalasi ndimatanthawuza kuti mbali zopezeka zopezeka zimalumikizidwa ndi wochititsa oteteza; Pamene chitsitsimutso chachikulu chimalephera, wochititsa oteteza kuti azitha kupirira cholakwika chapano, ndiye kuti, pomwe chitsitsimutso choyambirira chimalephera, magawo omwe apezeka sangakhale zigawo zamagetsi. Mwachidule, zida zomwe zili ndi zingwe zamphamvu za chingwe ndi zida. Zida za kalasi siyimalire zokhazokha pa "chikopa choyambirira" kuti muteteze magetsi, komanso limapereka chitetezo china chopanda chitetezo monga "kawiri kawiri" kapena "kulimbikitsa". Palibe zotulukapo zokhudzana ndi kudalirika kwa zoteteza kapena kuyika malo.
