Makhe sijonge indlela yokubala yangoku lwenziwa ngamandla

Ngaphambi kokuqhubeka kuyilo umbane ekhayeni lakho, kufuneka wenze inkqubo yentlawulo kunye ebonisa imithwalo kwakulindelekile kwisakhiwo kunye nobude amacandelo ngamnye intambo. Ukuba iqulunqe inkqubo kunye nemfuneko ukubala "amandla" of current. ZeGIS Lungisa ekhaya zombane uya kuphatha amacandelo afunekayo kweentambo eziya ukukhusela kweentambo lwakho nobushushu yaye, ngokunjalo, kungenzeka komlilo. Makhe sibone, kodwa yintoni na ukubalwa i "amandla" of current.

Ukukhetha eyiyo ubane izixhobo kunye cable cross-candelo kuxhomekeke amaxabiso awahlukeneyo yemida kothungelwano zombane. Eyona nto ibalulekileyo kuzo ugesi. Kwaye nqanaba yokuyila ezi Amaxabiso anokuba kumiselwa kuphela ukubala zezibalo. kubaluleke kakhulu ithathwa i "amandla" ye ubalo ezikhoyo networks ontlantlu-ntathu, apho umthwalo kufuneka zibekwe ngokulinganayo phakathi izigaba, ukunqanda ukuphazamiseka. Noko ke, ngo networks zokuhlala ezidolophini, ezi zibalo kufuneka yenziwe kuyilo kuphela ikhaka kodwa zokuhlala.

"Amandla" yokubala yangoku inikwa amandla amaxabiso ombane eyaziwa, uhlobo imithwalo kunye ombane ubonelelo. Kuba lwa olunye-isigaba usebenzisa ifomula ilandelayo: I = P / (U × cosφ), nalapho:

• U - ixabiso ombane ngqo ulinganiswa volts;
• cosφ - efanayo amandla factor.

Kuxhomekeka kuhlobo ombane umthwalo ikhethiwe. Ngoko, kuba umthwalo esebenzayo (elements imbawula, izibane yale igqengezelayo) na malunga ulingana umanyano. Nangona kunjalo, xa ucinga ukuba umthwalo resistive kusoloko icandelo lovukelo, ngoko ke ubalo kuqhelekile ukuba usebenzise ixabiso cos, lingana ne ukuya 0.95. Xa ubalo umthwalo, leyo ebonakala ngamazinga aphezulu ngamandla lovukelo (ingakwazi nokuginya ukukhanyisa, Iimoto zombane, induction eziko, abaguquli welding , njl) thathe ixabiso kuthetha cosφ, ilingana no 0.8.

Kuba ifomula-Isigaba AC unikezelo mbane kuya kuba le fom zilandelayo: I = P / (1,73 × U × cosφ).

Kuba ontlantlu-ntathu networks amandla ombane ukuze imithwalo esebenzayo kunye izidubuli ngokupheleleyo uthungelwano ezi-efanayo.

Ngenxa yoko, usebenzisa ifomula ngentla kuyimfuneko ukuba aqhube izibalo yonke imithwalo amandla amaxabiso zombane ngoku, ukuba kusetyenziswa kwindawo ethile.

Inqanaba elilandelayo yobalo zethu, kuya kuba ukukhetha yecandelo cable umnqamlezo. Nangona uncwadi yobugcisa amaninzi ukufumana into enjalo njenge "ubalo intambo", enyanisweni, akuyi ibalwe, kodwa "ukhetho". Phantsi ukuqonda ifomula ukubala lokuhlahla umthwalo yangoku ngentla. Phambi lwamaxabiso oluthile olukhoyo kunye ombane icandelo cross cable kukhethwa iitafile look-up. Ezi theyibhile ezibonwayo kakhulu kwaye musa ukuba inkcazo eneenkcukacha. Wena ukhethe kuqala impahla wire: ubhedu okanye aluminiyamu, kwaye ke ombane sonikezelo kunye nexabiso langoku emiselwe intambo cross-candelo.

Apha, eneneni, sibheke ukuba ukubala indlela umthwalo wombane kunye ekhethiweyo umnqamlezo-candelo iintambo ukwenzela iiprojekthi kombane.