I-transformer ye-1000KVA inokumelana nokusetyenziswa kwamandla angakanani e-KW?

Lo mbuzo kuqala ubandakanya ingcamango, oko kukuthi, ubudlelwane kunye nomahluko phakathi kwe-KVA kunye ne-KW.

I-KVA (kilovolt-ampere) yiyunithi yamandla abonakalayo, kwaye i-KW (kilowatt) yiyunithi yamandla asebenzayo. Ukongeza kumandla abonakalayo kunye namandla asebenzayo, kukho amandla asebenzayo, kwaye iyunithi yamandla asebenzayo yi-Kvar (kilovar).

Yintoni umahluko phakathi kwamandla asebenzayo, amandla okusabela, kunye namandla abonakalayo?

Amandla asebenzayo ngamandla asetyenziswa zizixhobo zombane, oko kukuthi, amandla ombane aguqulwa abe zezinye iintlobo zamandla.

Umzekelo, iindleko zombane zemihla ngemihla ezihlawulwa ngumntu wonke zingumbane osebenzayo;

Amandla asebenzayo athetha ukuba ezinye izixhobo azisebenzisi umbane, yinxalenye yamandla kuphela egcina umbane okwethutyana.

Umzekelo, ukuba kukho i-capacitor/i-coil kwisixhobo sombane, xa isixhobo sisebenza, i-capacitor/i-coil iya kuhlala ikwimeko yokutshaja kunye nokukhutshelwa ngaphandle. Ngenxa yokuba i-capacitor/i-coil itshajiwe kwaye ikhutshiwe, ayisebenzisi umbane ngokwenene, ngoko ke le nxalenye yamandla ibizwa ngokuba yi-reactive power.

Amandla abonakalayo abhekisa kumandla apheleleyo anikezelwa ngumbane.

Ukongeza ekunikezeni amandla asebenzayo kwizixhobo zombane, umbane (ngokubanzi ubhekisa kwi-transformer okanye ijenereyitha) kufuneka unikeze amandla okusabela. Isizathu silula kakhulu. Nangona i-capacitor kwizixhobo zombane ingasebenzisi amandla, ihlala itshaja kwaye ikhupha, ngoko ke kufuneka ithathe inxalenye yombane.

Emva kokucacisa ezi zinto, makhe sijonge ubudlelwane phakathi kwazo, obuza kuthetha ngenye ingcamango - amandla. Ubungakanani bamandla asebenzayo obunokunikezelwa ngumbane buxhomekeke kumandla.

【Into yamandla】

I-Power factor ibhekisa kumlinganiselo wamandla asebenzayo kumandla abonakalayo, achazwa ngokubanzi njenge-cosφ.

Umzekelo, i-transformer ye-1000KVA inokukhupha amandla asebenzayo angama-600KW xa i-power factor cosφ=0.6; kodwa xa i-power factor cosφ=0.9, inokukhupha amandla asebenzayo angama-900KW.

Ukuba i-1 kWh yombane yi-1 yuan, xa i-power factor iyi-0.6, i-transformer inokuvelisa iingenelo zoqoqosho ze-600 yuan/iyure; xa i-power factor ifikelela kwi-0.9, i-transformer inokuvelisa iingenelo zoqoqosho ze-900 yuan/iyure. Enyanisweni, indima yokubonelela nge-power factor ingaphezulu kakhulu kunokuba lula, zininzi ezinye, ngoko andizukuthetha ngayo apha.

【Uhlalutyo lwale sihloko】

Ngesiseko esingentla, kulula ukuchaza esi sihloko.

Iyunithi yomthamo we-transformer yi-KVA (kilovolt-ampere), kwaye iyunithi yamandla yezixhobo zombane yi-KW (kilowatt). Kuphela xa amandla e-1 eyi-power factor, apho amandla e-1000KW angalayishwa ngokupheleleyo, kodwa akunakwenzeka kwiindlela ezisebenzayo.

Xa kuyilwa, kuyimfuneko ukushiya umda othile, oqhele ukubalwa ngokwezinga lokuthobela imithetho le-90%, elingcono kwaye lifanelekileyo, oko kukuthi, i-1000×0.9=900KVA. Ukuba sibuyisela amandla kwi-0.95 nangaphezulu ngokusebenzisa imbuyekezo yamandla, i-transformer inokukhupha amandla asebenzayo angama-900×0.95=855KW.

Qaphela: Inkampani yamandla ifuna ukuba i-power factor ibe ngaphezulu kwe-0.9, kungenjalo kuya kubakho izohlwayo; kodwa i-power factor ayinakudlula i-1, kungenjalo i-voltage yenkqubo iya kwanda kwaye ichaphazele ukusebenza okuqhelekileyo kwenkqubo.

Isihloko sithi i-transformer ye-1000KVA ekuqaleni yayinika amandla kwizixhobo zombane ze-200KW, kwaye ngoku kongezwe izixhobo zombane ze-600KW. Amandla asebenzayo ezixhobo zombane afikelele kwi-800KW, engadluli ixabiso elibaliweyo.

Ngoko ke, i-transformer ye-1000KVA ekuqaleni yayinika amandla kwizixhobo zombane ze-200KW, kwaye ngoku izixhobo zombane ze-600KW zongezwa. Ukuba nje sinokunyusa amandla ukuya kwixabiso elifunekayo, i-transformer ingasebenza ngokukhuselekileyo ixesha elide.