Monga waya gawo chikugwirizana pakati linanena bungwe ndipo

Aliyense amene ntchito chikugwirizana ndi utumiki magetsi, chabe ayenera kudziwa kuchita mawerengedwe a chingwe mtanda gawo- mphamvu. Popanda ichi mungapeze nkhani zosasangalatsa pamene posachedwapa akupatsa ogula pamzere kunja kwa dongosolo chifukwa kuwonongeka matenthedwe kwa wochititsayo. Popewa izi, muyenera osati musaiwale kuti waya kukula ndi mphamvu ndi zogwirizana komanso kuchita kuwerengetsera ngati n'koyenera. kuthekera kosankha m'mimba mwake Napempha kwa akuwauza, malingana ndi mowa mphamvu kungakhale kothandiza pa moyo: mwachitsanzo, kusankha chingwe-wokwera awo kukatentha magetsi.

Waya kukula, mphamvu ndiponso chovomerezeka panopa

Popeza ambiri mitunduyi magetsi ali ovuta kwambiri, anthu ambiri nkomwe anamva za kufunika kuchita kuwerengetsera aliyense, kuganiza kuti sasiya kumvetsa popanda thandizo la akatswiri mphamvu m'munda umenewu. Ndipotu, waya kukula ndi mphamvu kugwirizana ndi angapo mitunduyi yosavuta. vuto kumachepetsa kuti tipeze pazipita panopa ndi zina wochititsa kusankha kudzera deta Buku anthu.

chiphunzitso

Ku sukulu Physics amadziwika kuti m'kupita panopa mwa zinthu conductive kupangitsa Kutentha kwake, potsata m'dera yachigawo ndi wochititsa kasinthidwe (n'zoonekeratu kuti woonda chingwe conductive tsitsi usavutike kuposa mbale chitsulo). Mtengo panopa panopa alinso gwero, i.e. kuonjezera njira zake Kutentha kukhala kwambiri. Tiyeni tikumbukire mfundo zatsopano kuwerengetsa ndi voteji kudziwika ndi kukana. Iwo anachokera ku chilamulo tingachipeze powerenga za Ohm ndipo zikuwoneka ngati ine = U / R, kumene U - Volts, R - kukana mu ohms.

Komabe, akukhudzana mbali imeneyi ya waya, ndi mphamvu? Pomwepo! More molondola mu nkhani iyi si ntchito mfundo mphamvu, ndi mphamvu (ubwenzi wawo udzakhala pansipa, akupereka chilinganizo a).

Magetsi ogula cholukanalukana ndi kuchuluka kwa panopa likuyenderera mu wochititsa lapansi. Ambiri, izo zingadziŵike ku chilinganizo P = Ine U, kumene ine - panopa mu amperes. Sititenga nkhani makhalidwe a mphamvu (yogwira kapena zotakasika chigawo), koma deta kuperekedwa chikukwanira kusankha gawo waya. Patsalanso gawo lotsiriza - kudziwa malo mtanda yachigawo ya pakati chingwe. zamagetsi odziwa kudziwa chizindikiro ichi "ndi diso", koma Mpofunika ntchito chilinganizo osavuta kuti chingamulepheretse zolakwa zotheka.

mchitidwe

Ndi chingwe wochititsa kutchinjiriza ayenera kuchotsedwa, kuvumbula zitsulo ndi awiri anayeza. Kenako, phindu analandira kwa mmalo mwa chilinganizo S = (3,14 * (d * d)) / 4, kumene anthu d - awiri mu millimeters.

Mpaka kutenga chiongoko (PUE), kupeza tebulo ndi lolingana gawo panopa ndi kusankha chingwe bwino. Komanso amaganizira zinthu ndi njira atagona mzere.

moyo Mwachitsanzo

Tangoyeserani mukufuna kulumikiza kukatentha 2 kW ku 220 V. Kugwiritsa chilinganizo pamwamba pa «P» timapeza panopa, zidzakhala 9 mikuza mawu. sitolo ndi yotsika mtengo awiri-pachimake chingwe ndi ochititsa mkuwa ndi gawo mtanda ankaimira 0,75 ndi 1 mm.kv. Tsegulani chikwatu, kupeza "lotseguka Kulumikizana". Ziwiri waya-gawo mtanda 1 mm.kv. Iwo akhoza kulimbana 16 mikuza mawu (GOST 80!), Ndi 0,75 limafanana 15 A. pafupifupi ziwiri nthawi malo. Choncho, muchisanzo chimenechi, ntchito zingwe ndi ochititsa mkuwa anasonyeza zovomerezeka ndithu. Izo chikugwirizana waya kukula ndi mphamvu.