Kangakanani ukubala umthwalo kagesi

Ngaphambi kokuqhubeka ukuklanywa Electrics endlini yakho, efulethini, cottage, kuzomele uqale wenze uhlelo ukubala, okuyinto izofakwa ohlwini wonke umthwalo kulindeleke emagcekeni, kanye nobude izigaba ngazinye ikhebula. Ukukhiqiza ikhadi okunjalo futhi uzodinga ukubala umthwalo kagesi. Lungile wesifunda kagesi sakhiwa into ziyoyizwa izintambo futhi izintambo edingekayo izigaba. Ezimweni lapho ikhebula cross-section esingaphansi ukuthi adingekayo ukusebenza evamile izinjini amandla okusezingeni eliphezulu intambo iqala ukuze overheat. Futhi ngenxa ukubhujiswa ukwahlukanisa. Ngenxa yalokho, isikhathi ukusebenza kanye ukuthembeka ungqimba wiring is kakhulu ziyancipha. Ngaphezu kwalokho, ikhebula okweqile kungabangela umlilo. Kuye kwenzeka okufanayo kwenzeka kaningi lapho abaqashi (ukulondoloza) isetshenziswa wire kwesigaba, lingaphansi kuka edingekayo. Umphumela short circuit nomlilo. Ake sibone, ukuthi yini ukubala umthwalo kagesi.

Uzokhetha amadivayisi ukushintsha futhi ikhebula cross-section kuncike amanani ahlukene kwemigomo amanethiwekhi kagesi. Into ebaluleke kakhulu wabo lo kagesi lamanje umthwalo. Ngesikhathi sigaba design lemali ebekiwe kungaba azimisele indlela kuphela zezibalo. It kubhekwa ukubala ebaluleke kakhulu imithwalo kagesi ezintathu okhombisa amanethiwekhi, njengoba umthwalo wabo kufanele ibekwe ngokulinganayo phakathi izigaba, ukugwema kweqiniso voltage. Nokho, amanethiwekhi yasekhaya ukubala ezinjalo kufanele kwenziwe ekuklanyweni hhayi kuphela isihlangu kodwa futhi zokuhlala.

Kagesi umthwalo ukubala Kwenziwa amanani kwaziwayo kwamandla kagesi amadivayisi, ubunjalo imithwalo kanye amapayipi voltage. ezisetshenziswa ifomula sokunquma zamanje umthwalo owodwa esigabeni amanethiwekhi: Mina = P / (U × cosφ), lapho:

• U - bungako mbamba supply voltage (ulinganiswa volts);
• cosφ - elihambisana amandla isici.

Ukuze ezintathu okhombisa amanethiwekhi ekubalweni imithwalo kagesi Kwenziwa ngokuvumelana le ndlela elandelayo: Mina = P / (1,73 × U × cosφ).

Kuye uhlobo umthwalo amandla isici ukubaluleka kuyakhethwa. Ngo izibalo umthwalo esisheshayo kwamandla aphezulu (sokuqala esiminyanisa ukukhanyisa, motors kagesi, Transformers nezinye Welding.) Inani Isilinganiso kuthathwe cosφ = 0.8. Ekunqumeni amandla zamanje ngoba umthwalo asebenzayo (izakhi heater, esikhipha isibani) amandla isici cishe lingana kuze fike. Nokho, noma yimuphi umthwalo resistive njalo ingxenye esisheshayo likhona, ngakho izibalo wasisebenzisa ukubaluleka cosφ = 0,95.

Ekuphetheni, sikhumbula ukuthi ugesi akusho amaphutha, awusebenzi ukunikeza amathuba yesibili. Ukuphepha kanye ukuthembeka izinhlelo kagesi - obabela kunoma ngogesi abaqeqeshiwe. Futhi kungakhathaliseki ukuthi isebenza: emsebenzini noma engxenyeni ezimele. umthwalo wegezi - lena ngenye yezindlela ezibaluleke kakhulu umklamo nemingcele okumelwe icatshangelwe yiluphi uhlelo.