Njani na ukubalwa umthwalo wombane

Ngaphambi kokuqhubeka kuyilo electrics endlwini yakho, indlu, Cottage, kufuneka uqale wenze scheme ukubala, oluya kuluhlu zonke umthwalo kulindeleke kwisakhiwo, kwakunye ubude amacandelo ngamnye intambo. Ukuze kuveliswe ikhadi kwaye kuya kufuneka ukuba babale umthwalo wombane. yombane oluchanekileyo iqulunqwe into aya kuphatha kwala macingo iintambo ezifunekayo kumacandelo. Kwiimeko apho intambo cross-icandelo ngaphantsi koko kufunwa ngenxa eliqhelekileyo nokusebenza iinjini amandla eliphezulu intambo uqala ukuba shushu ngokugqithisileyo. Kwaye ngenxa yoko le ukutshabalala usambathisa. Ngenxa yoko, ixesha ukusebenza kunye nokuthembeka umaleko iintambo liyehla kakhulu. Ngaphezu koko, cable nobushushu kunokubangela umlilo. iimeko ezifanayo kwenzeka ngokufuthi xa kubalimi (to save) lusetyenziswa icandelo wire, lingaphantsi kwe efunekayo. Isiphumo short circuit nomlilo. Makhe sibone, yintoni na ukubalwa umthwalo wombane.

Ukhetho oluchanekileyo lwe-nokutshintsha izixhobo kunye cable cross-candelo kuxhomekeke amaxabiso awahlukeneyo yemida kothungelwano zombane. Eyona nto ibalulekileyo kubo ugesi yangoku umthwalo. Ngelo xesha yoyilo i isixa elikhankanywe icaciswa ndlela kuphela izibalo. Kucingwa ukubala kubaluleke kakhulu imithwalo zombane networks ontlantlu-ntathu, njengokuba umthwalo kubo kufuneka zibekwe ngokulinganayo phakathi izigaba, ukunqanda nokugqwethwa ombane. Noko ke, ngo uthungelwano basekhaya loo yokubala kufuneka yenziwe kuyilo kuphela ikhaka kodwa zokuhlala.

yokubala umthwalo Electrical yenziwa amaxabiso eyaziwayo zombane amandla izixhobo, uhlobo imithwalo kunye ombane mbane. Ifomula esetyenzisiweyo yokuqingqa yangoku umthwalo lothungelwano olunye-phase: I = P / (U × cosφ), nalapho:

• U - ixabiso elililo lwe ombane yonikezelo (ulinganiswa volts);
• cosφ - efanayo amandla factor.

Kuba networks ontlantlu-ntathu ukubalwa kwemithwalo ombane oluqhutywa ngokomgaqo wokubala ilandelayo: I = P / (1,73 × U × cosφ).

Kuxhomekeka kuhlobo umthwalo ixabiso amandla factor ikhethiwe. In izibalo umthwalo yovukelo yamandla aphezulu (ingakwazi nokuginya ukukhanyisa, Iimoto zombane, abaguquli kunye nezinye welding.) I-avareji Ixabiso ethathwa cosφ = 0.8. Ekumiseleni amandla yangoku kuba umthwalo esebenzayo (elements imbawula, eewathi isibane) amandla ombane malunga alinganayo kwelinye. Nakuba kunjalo, nawuphi na umthwalo resistive kusoloko licandelo lovukelo ekhoyo, ngoko izibalo ezenziwe ixabiso ukusetyenziswa cosφ = 0,95.

Xa ndiqukumbela, sikhumbula ukuba umbane akuthethi ukuxolela iimpazamo, oko akuthethi anike amathuba yesibini. Ukhuseleko nokuthembeka iinkqubo zombane - unqwenela nayiphi kwezombane yobungcali. Yaye kungakhathaliseki apho asebenza: emsebenzini okanye kwicandelo labucala. umthwalo Electrical - le yenye parameters yoyilo ibalulekileyo ekufuneka zithathelwe ingqalelo nayiphi na inkqubo.