Power Units. DC ngamandla: unit

Power physics iqondwa njengoko umlinganiselo lugqitywe ngexesha elithile yokusebenza nexesha ixesha yona kwenziwa. Phantsi umsebenzi mechanical ukuthini licandelo ubungakanani amandla kwi emzimbeni, ngenxa kuyo oshukunyiswa yokugqibela emajukujukwini.

Uyakwazi ukubonisa amandla kwaye izinga transfer amandla. Oko kukuthi, ibonisa impumelelo umatshini oluzenzekelayo. Ngokulinganisa amandla kuye kucace ukuba kwenziwa umsebenzi ngokukhawuleza.

unit Power yokukala

Power ulinganiswa watts okanye ziijowule ngomzuzwana ngamnye. Abaqhubi eyaziwa silinganiso amandla enjini. Hi ndlela leyi, phambi kokufika iinjini umphunga eli xabiso akalinganiswa kwaphela.

Ngenye imini, esebenzisa indlela lomgodi, injineli eGeorge. White wathabatha ukuphucuka yakhe. Ukungqina uphuculo zakhe injini kwakhe kuthelekiswa kunye nokusebenza amahashe. Abantu baye basebenzisa kangangeenkulungwane. nabani na ngoko kwaba lula ukucinga ukuba umsebenzi amahashe idrafti kangangexesha elithile.

Ukubukela kubo, White wathelekisa iinjini imodeli umphunga, ngokuxhomekeke kwisixa enjini. Lowo ngokomfuniselo kubalwa ukuba amandla ihashe 746 watts. Namhlanje, bonke uqinisekile ukuba eli nani overpriced ngokucacileyo, kodwa iyunithi amandla wagqiba ukutshintsha.

Ngokusebenzisa kobungakanani emzimbeni uthe bafunde umsebenzi, ekubeni kwenyusa ukunyuka umsebenzi kwixesha elinye ixesha. Loo iyunithi standardised zemilinganiselo sele iyinto exhaphakileyo kakhulu. Yaqala zisetyenziswe ezahlukeneyo iindlela. Ngoko ke, enoba watts kwaye ziye zasetyenziswa ixesha elide, kuba abaninzi enjini siyaqondakala ngaphezu kwezinye iiyunithi ngamandla.

Indlela ukuqonda amandla kwikhaya izixhobo zombane

Power, Kakade, abonisa noomatshini zombane zasekhaya. In izibane usebenzisa imilinganiselo zayo ezithile, umzekelo amathandathu watts. Iibhalbhu kunye nomlinganiselo elikhulu igunya ukumisela ukuba akunakwenzeka, kuba kungenjalo baya ngokukhawuleza zimbi. Kodwa ukuba akazange athenge i isibane yale igqengezelayo, LED okanye ezijiko-jiko, baya kukwazi agcwale ukukhanya okukhulu, ngelixa odlayo amandla kancinane.

ukusetyenziswa kwamandla, kambe ke, umlinganiselo ngqo kwimali ngamandla. Ngoko ke, kubavelisi kwezibane ukukhanya kusoloko entsimini zokuphucula imveliso. Okwangoku, abathengi bakhetha ezinye iindlela, ngaphandle izibane zigqengezelayo.

amandla Sport

iiyunithi zemilinganiselo amandla baziwa nje kuphela ngokunxulumene nokusetyenziswa kwenkqubo. Ingcamango amandla ekunokuthiwa izilwanyana kunye nabantu. Umzekelo, eli xabiso kungabalelwa xa womdlali lilo elifaka ibhola okanye ezinye izixhobo ayizuze ngenxa yokusekwa amandla isicelo, umgama kunye nexesha isicelo layo.

Unga sebenzisa iinkqubo zekhompyutha apho index zibalwe yoko wenza isixa esithile umthambo kunye nokwaziswa parameters.

izixhobo zokulinganisa

Dynamometer - isixhobo okhethekileyo ngawo ngamandla ulinganiswa. Kananjalo zisetyenziswa ukugqiba amandla kunye torque. Isixhobo isetyenziswa ezahlukeneyo mveliso. Ngokomzekelo, bona bawubonakalalisayo amandla injini. Ukuze benze oku, injini liyasuswa isithuthi kwaye idityaniswe dynamometer. Kodwa kukho izixhobo abakwaziyo ukubala efunekayo nkqu kwevili.

Xa amayeza ezemidlalo kunye dynamometers nazo ngokubanzi. Simulators basoloko nabenzi boluvo ababanikezelayo uqhagamshele kwikhompyutha. Nabo, kwaye wenza yonke imilinganiselo.

enamandla ombane

James Watt owavela injini, kwaye ukusukela 1889, umlinganiselo ngamandla umbane baba watts, kwaye inkqubo ngamazwe ixabiso womlinganiselo zibandakanyiwe 1960.

Watts lingaba nokulinganiswa kuphela enye ngamandla ombane kodwa thermal, mechanical okanye nayiphi na. Kwakhona baye bakha iziphindwa kunye sub-iziphindwa. Loo maKristu abizwa ngokuba kunye ukongeza igama lantlandlolo izimaphambili ezahlukileyo "Kilo", "musa" "Giga", njl.:

• 1 kilowatt ilingana zaliwaka watts;
• MW million 1 watts ngokulinganayo njalo njalo.

Kilowatt-hour

Kwinkqubo SI ngamazwe akukho iiyunithi yesikali ezifana kilowatt iiyure-. Eli nani ngaphandle inkqubo, yaqalisa ukuba ingxelo amandla zombane osetyenzisiweyo. In Russia esebenza kunye GOST 8.417-2002 ummiselo apho iyunithi amandla yokukala umbane yaye isicelo elijongene ngqo.

Le yunithi nekucetyiswa ukuba ubhaliso lwamandla zombane osetyenzisiweyo. Likwimo kakhulu lula, ekuthi kwezo nto kuphume iziphumo ezamkelekileyo. Iziphindwa apha inokusetyenziswa kwakhona xa kukho imfuneko. Bakhangele efanayo Watts:

• 1 iyure kilowatt 1000 uw;
• 1 megawathi-iyure ilingana 1,000 kilowatt-hour, njalo njalo.

Igama elipheleleyo kubhaliwe kwathiwa, njengoko sele sibonile, kunye nekhonkco, kwaye elifutshane - kwindawo (nz, kWh).

Njengoko kubonisiwe ngamandla ombane

It jikelele ukubonisa Isalathisi uthe ngqo kwi izindlu zesixhobo sombane. Amagama zinokwenzeka:

• watt and kilowatt;
• Uw no kilowatt iiyure-;
• Volt-Amps kunye kVA.

Uphawu kakhulu jikelele kukusetyenziswa kweeyunithi ezifana watts okanye kilowatts. Ukuba zingenziwa kwi iyunithi wagqiba ukuba eli gunya kuphuhliswa kwesi sixhobo.

Amaninzi Watts kunye kilowatts kulinganiswa amandla ngoomatshini ezivelisa zombane kunye Motors, namandla thermal izifudumezi zombane njalo njalo. D. Ethi unit amandla kakhulu ngoku icebo apho lujolise kakhulu ngokwexabiso ubushushu eyenziwe, kwaye izibalo zithathelwa ingqalelo sele emva kwakhe.

Watt-iiyure kunye kilowatt iiyure-ukubonisa ukusetyenziswa kwamandla ukuba iyunithi elinikiweyo sexesha. Amaxesha amaninzi ezi iziqu kunokubonwa izixhobo zombane zasekhaya.

Kwi zamazwe inkqubo SI linamacandelo ngamandla ombane, nto leyo ilingana watts kunye kilowatts - ezili-amperes kunye kVA. Loo sokuthatha ubonelela ukufunda AC amandla. Asetyenziswe ngayo izibalo zobugcisa xa zombane iparameters ebalulekileyo.

ukwalatha efanelana iimfuneko zobunjineli bombane, apho izixhobo ezisebenza kunye alternating current, zombini amandla iyasebenza izidubuli. Ngoko ke, amandla wombane kumiselwa sum of kula macandelo. Amaninzi e VA ukubonisa izixhobo mandla ezifana abaguquli, inductors, kunye nezinye converters.

Xa ukhetha umenzi onjengalowo iiyunithi zemilinganiselo ukuba yikhankanye, ikakhulu kwimeko izixhobo ephantsi-power (kubo, umzekelo, indlu izixhobo zombane), zonke zontathu izihionipho zidla idibana.