Ulwazi olusisiseko lwabasebenzisi
Umzi-mveliso odityanisiweyo we-mesh ikakhulu uvelisa amashiti adityanisiweyo adityanisiweyo, iminatha yocingo, iminatha yengca, iminatha ye-gabion, inetha yokuhuka, inetha zokosa inyama, iikheji zemivundla, njl. I-1000 kVA kunye ne-1630 kVA iiguquli.Umzobo wenkqubo yonikezelo lwamandla ngolu hlobo lulandelayo:
Eyona datha yokusebenza
Amandla apheleleyo omatshini we-welding kunye ne-1000KVA i-transformer yi-1860KVA, i-avareji yamandla e-PF = 0.7, kunye ne-fluctuation yangoku yi-1050-2700A.Amandla apheleleyo omatshini we-welding kunye ne-630KVA i-transformer yi-930KVA, i-avareji yamandla e-PF = 0.7, kunye nokuguquguquka okusebenzayo okwangoku yi-570-1420A.
Uhlalutyo lwemeko yeNkqubo yaMandla
Umbane we-welding machine power supply usetyenziswa kakhulu ukuthoba umthwalo omkhulu wangoku, ongumthwalo ongeyomfuneko.Isixhobo sivelisa inani elikhulu le-harmonics ngexesha lokusebenza.I-harmonic yangoku yomthombo oqhelekileyo we-harmonic ifakwe kwigridi yamandla, kwaye i-impedance yegridi ivelisa i-voltage ye-harmonic, ebangela i-voltage yegridi kunye nokuPhathwa kwangoku kuchaphazela umgangatho wokunikezelwa kwamandla kunye nokhuseleko lokusebenza, kwandisa ilahleko yomgca kunye nokunciphisa umbane, kunye nokwandisa amandla.Ke ngoko, kuyafuneka ukuba ukhethe isoftware yenkqubo enokucinezelwa kweharmonic ukucinezela i-harmonics, ukubuyisela imithwalo esebenzayo, kunye nokuphucula amandla.
Hlunga isicwangciso sonyango lwembuyekezo yamandla asebenzayo
Iinjongo zolawulo
Uyilo lwezixhobo zembuyekezo zokucoca luhlangabezana neemfuno zokucinezelwa kwe-harmonic kunye nolawulo loxinzelelo lwamandla asebenzayo.
Ngaphantsi kwenkqubo yokusebenza ye-0.4KV, emva kokuba isixhobo sembuyekezo yokucoca sifakwe ekusebenzeni, i-pulse current icinezelwe, kwaye i-avareji yamandla yenyanga ijikeleze i-0.92.
I-High-order harmonic resonance, i-resonance overvoltage, kunye ne-overcurrent ebangelwa ukudibanisa kwi-filter imbuyekezo yesiphaluka yesebe ayiyi kwenzeka.
Uyilo lulandela iMigangatho
Umgangatho wamandla I-harmonics yegridi kawonkewonke GB/T14519-1993
Umgangatho wamandla Ukuguquguquka kweVoltage kunye ne-flicker GB12326-2000
Iimeko zobugcisa ngokubanzi zesixhobo sembuyekezo yamandla asezantsi-voltage asebenzayo GB/T 15576-1995
Isixhobo sembuyekezo yamandla asezantsi-voltage esebenzayo JB/T 7115-1993
Imbuyekezo yamandla asebenzayo iimeko zobuchwepheshe JB/T9663-1999 "I-low-voltage reactive power isilawuli sembuyekezo ezenzekelayo" ukusuka kwi-high-order harmonic yangoku umda wexabiso lombane ophantsi kunye nezixhobo zombane GB/T17625.7-1998
Amagama e-Electrotechnical Ii-capacitors zamandla GB/T 2900.16-1996
I-low voltage shunt capacitor GB/T 3983.1-1989
Reactor GB10229-88
I-Reactor IEC 289-88
I-low-voltage esebenzayo yembuyekezo yolawulo lolawulo lweemeko zobugcisa DL/T597-1996
Umgangatho ophantsi we-voltage yokukhusela indawo yombane ye-GB5013.1-1997
I-low-voltage epheleleyo yokutshintshela kunye nezixhobo zokulawula i-GB7251.1-1997
Iingcamango zoyilo
Ngokusekwe kwimeko yokwenyani yeshishini, inkampani ithathela ingqalelo ngokupheleleyo amandla omthwalo kunye nokucinezelwa kwe-harmonic yesihluzi sembuyekezo yamandla asebenzayo kumatshini we-welding, kwaye ifakela isixhobo sembuyekezo yokucoca amandla asebenzayo kwicala le-0.4KV le-voltage ephantsi yeshishini. i-transformer ukucinezela i-harmonics kunye nokubuyisela amandla asebenzayo ukuze kuphuculwe into yamandla.
Ngethuba lenkqubo yokusebenza yomshini we-welding, amaxesha ama-3 e-150HZ, amaxesha ama-5 e-250HZ kunye ne-harmonics engaphezulu yenziwa.Ke ngoko, kuyilo lwembuyekezo yamandla asebenzayo okucoca umatshini wokuwelda, ukuphindaphindwa kwe-150HZ, 250HZ kunye nokujikeleza kufuneka kuyilwe ukuze kuqinisekiswe ukuba i-loop yembuyekezo yokucoca inokucinezela ngokufanelekileyo i-pulse yangoku ngelixa ubuyekeza umthwalo osebenzayo kunye nokuphucula amandla. into.
umsebenzi woyilo
Umbane obanzi womgca wokuvelisa umatshini wesibini we-welding ohambelana ne-1000 kVA transformer uhlawulelwa ukusuka kwi-0.7 ukuya malunga ne-0.92.Isixhobo sokuhluza Izixhobo zembuyekezo kufuneka zifakwe amandla angama-550 kVA.Amaqela angama-9 e-capacitors ekuqhekekeni kwesigaba axhunyiwe ngokuzenzekelayo kwaye anqanyuliwe, ngalinye lihambelana nokuvunguza kwicala eliphantsi le-voltage ye-transformer.Umthamo wokulungelelaniswa kweklasi ngu-25KVAR, onokuhlangabezana neemfuno ezahlukeneyo zamandla omatshini wokuwelda wewaranti yesibini.Umbane obanzi we-welding machine welding welding ehambelana ne-630 kVA transformer ihlawulwa ukusuka kwi-0.7 ukuya kwi-0.92.Isixhobo sembuyekezo yesixhobo sokuhluza kufuneka sifakelwe umthamo we-360 kVA.Amaqela angama-9 e-capacitors ekuqhekekeni kwesigaba axhunyiwe ngokuzenzekelayo kwaye anqanyuliwe, ngalinye lihambelana nokuvunguza kwicala eliphantsi le-voltage ye-transformer.Umthamo wokulungelelaniswa kweklasi ngu-25KVAR, onokuhlangabezana neemfuno ezahlukeneyo zamandla kumgca wokuvelisa.Olu luyilo lwanele ukuqinisekisa ukuba amandla alungelelanisiweyo angaphezulu kwe-0.92.
Uhlalutyo lwesiphumo emva kokufakwa kwembuyekezo yesihluzi
Ngo-Epreli ka-2010, isixhobo sembuyekezo yamandla asebenzayo okucoca umatshini wokuwelda sakhutshwa ngenqanawa kumzi-mveliso.Isixhobo silandelela ngokuzenzekelayo utshintsho lomthwalo womatshini we-welding, icinezela amandla asebenzayo wembuyekezo ye-harmonic ngexesha langempela, kwaye iphucula into yamandla.iinkcukacha ngolu hlobo lulandelayo:
Emva kokuba isixhobo sembuyekezo yesihluzi sisetyenzisiwe, amandla okutshintsha igophe malunga ne-0.97 (indawo ephakanyisiweyo imalunga ne-0.8 xa isixhobo sembuyekezo sokucoca sisusiwe)
Umsebenzi wokulayisha
Umbane osebenzayo we-1000KVA we-transformer wehla ukusuka kwi-1250A ukuya kwi-1060A, izinga lokunciphisa i-15%, kwaye ukusebenza kwangoku kwe-transformer ye-630KVA yehla ukusuka kwi-770A ukuya kwi-620A, izinga lokunciphisa i-19%.Emva kwembuyekezo, ixabiso lokunciphisa ilahleko yamandla yi-WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=24×{(0.85×2000)/2000}2×0.4≈16 (kw h) Kwifomula, i-Pd yilahleko ye-short-circuit ye-transformer, eyi-24KW, kunye nokugcinwa kweendleko zombane ngonyaka yi-16 * 20 * 30 * 10 * 0.7 = 67,000 yuan (ngokusekelwe ekusebenzeni iiyure ezingama-20 a usuku, iintsuku ezingama-30 ngenyanga, iinyanga ezili-10 ngonyaka, 0.7 yuan ngekWh).
imeko amandla factor
Amandla abanzi eshishini anyuke ukusuka kwi-0.8 ukuya kwi-0.95 kule nyanga yangoku, kwaye amandla enyanga aya kuhlala kwi-0.96-0.98 kwixesha elizayo, kwaye ibhonasi yenyanga iya kuba yi-3000-5000 yuan.
ukuququmbela
Isixhobo sembuyekezo esisebenzayo sokucoca umatshini wokuwelda umbane sinakho ukucinezela i-harmonics kunye nokubuyisela amandla asebenzayo, ukusombulula ingxaki yezohlwayo zamandla asebenzayo kumashishini, ukonyusa umthamo wemveliso yeenguqu, ukunciphisa ilahleko eyongezelelweyo, ukonyusa imveliso, kunye nokuzisa uqoqosho olubalulekileyo. iinzuzo kumashishini.Buyela kutyalo-mali ngaphantsi konyaka.Ke ngoko, isixhobo sembuyekezo yamandla esebenzayo eyenziwe yinkampani saneliseke kakhulu, kwaye siya kutsala abathengi abaninzi kwixesha elizayo.
Ixesha lokuposa: Apr-14-2023