Uhlobo Lombuzo: Iimfuneko Zovavanyo LweVolthi
Q: Zithini iimfuno zovavanyo lwe-voltage oluphambili kwii-capacitors kwisekethe ye-DC-Link yeqonga le-800V?
A: Ukuqinisekisa imfuneko yovavanyo lwe-voltage linyathelo lokuqala ekukhetheni, kodwa kuyimfuneko ukucacisa uhlobo oluthile lwe-waveform yovavanyo kunye nenani leempembelelo zokushushu. Kuvavanyo lwe-DV, kucetyiswa ukuba ubhekisele kwi-ISO 16750-2 okanye imigangatho efanayo, usebenzisa ii-bidirectional load dump pulses (ezifana nee-load dumps) ukuqinisekisa umlinganiselo we-voltage ye-capacitor kunye nozinzo lwe-capacitance emva kwamakhulu ee-pulses ezinjalo, ukuqinisekisa ukusebenza kakuhle komda woyilo lwayo.
Uhlobo lombuzo: Amandla okuRipple
Q: Kwiindawo zokutshintsha-tshintsha ezisebenzisa amaza amaninzi, ii-capacitors kufuneka zikwazi ukumelana nemisinga ye-ripple ephezulu kakhulu. Loluphi ubuchwepheshe olusetyenziswa luluhlu lwe-CW3H ukuphucula ukunyamezelana kwemisinga ye-ripple? Lusebenza njani ngokusebenzayo?
A: Kufezekisiwe ngokuvelisa izinto ezintsha—ukusebenzisa i-electrolyte entsha engaphantsi kokulahleka, kunciphisa ngempumelelo ukumelana nochungechunge olulinganayo (ESR), ngaloo ndlela kwandisa ukunyamezelana kombane we-ripple ukuya kwi-1.3 yexabiso elilinganisiweyo. Ukuqinisekiswa kwedatha yelabhoratri kubonisa ukuba xa umlinganiselo wombane we-ripple uphindwe ka-1.3, ukunyuka kobushushu obuphambili kolu luhlu lwee-capacitors kuzinzile ngaphandle kokuwohloka kokusebenza. Kwiinkcukacha eziqhelekileyo, imodeli ye-450V 330μF ifikelela kumlinganiselo wombane we-ripple we-1.94mA kwi-120kHz, kwaye imodeli ye-450V 560μF ifikelela kwi-2.1mA, ihlangabezana neemfuno zokunyamezelana kombane we-ripple yeemeko zokutshintsha kwe-frequency ephezulu. Ubuchule be-Ripple bubaluleke kakhulu kuyilo lwe-frequency ephezulu kwaye bufuna idatha yobunjineli eqinisekisiweyo. Kubalulekile ukufumana umlinganiselo wombane we-ripple (I rms ) kunye ne-derating curve yemodeli ekujoliswe kuyo kumthengisi kubushushu obuphezulu bokusebenza (umz., 105°C) kunye nomlinganiselo wokutshintsha we-real (umz., 100kHz). Ngexesha loyilo, i-ripple yokusebenza kufuneka ibe ngaphantsi ngama-70%-80% kunolu vavanyo ukulawula ukunyuka kobushushu nokwandisa ubomi.
Uhlobo Lombuzo: Ibhalansi Yobungakanani Nomthamo
Q: Uthotho lweCW3H lufikelela njani kumlinganiselo phakathi "kobukhulu obuncinci kunye nomthamo ophezulu" xa indawo yemodyuli incinci? Zithini iinkqubo ezixhasa imveliso?
A: Umthamo ophantsi uthetha ukwanda kobushushu obunokwanda ngevolumu nganye. Ngexesha loyilo, ukulinganisa ubushushu kuyadingeka ukuze kuphuculwe ukuhamba komoya okanye iindlela zokusasaza ubushushu ezijikeleze i-capacitor. Kwangaxeshanye, uyilo lwendawo yokulungisa ii-capacitor ezincinci lufuna ukuchaneka okukhulu ukuthintela uxinzelelo olongezelelweyo ngexesha lokungcangcazela. Oku kufezekiswa ngobuchule benkqubo kwicala loyilo—kusetyenziswa iinkqubo ezikhethekileyo zokugoba kunye nokujika ukuze kuphuculwe isakhiwo sangaphakathi, kufezekiswe “umthamo ophezulu kwivolumu efanayo” okanye “ukunciphisa malunga ne-20% yevolumu kwinkcazo efanayo.” Kwicala lemveliso, le nkqubo eyenzelwe wena iphambili; umzekelo, iinkcukacha ze-450V 330μF zifuna i-25 * 50mm kuphela, kwaye iinkcukacha ze-450V 560μF ziyi-30 * 50mm, nto leyo enciphisa kakhulu umthamo xa kuthelekiswa neemveliso zemveli zenkcazo efanayo, ihlengahlengisa indawo yokufakela encinci yemodyuli.
Uhlobo Lombuzo: Izalathisi Zobomi
Q: Ingaba ubomi beeyure ezingama-3000 kwi-105℃ buyanele ukusetyenziswa kweemoto?
A: Le datha yodwa ayanelanga. I-core yiqondo lobushushu lokusebenza le-capacitor. Uyilo lobushushu luyimfuneko ukulawula ubushushu bomzimba we-capacitor ngaphakathi kwimodyuli ye-OBC/DCDC. Umzekelo, ukuba ubushushu bomzimba bunokulawulwa kwi-85°C, ngokusekelwe kumgaqo wokuba ubomi buphindaphindeka kabini kwi-10°C nganye yokwehla kobushushu bomzimba, ubomi bayo bomzimba buya kudlula iiyure ezingama-3000, ngaloo ndlela kuhlangatyezwane neemfuno zobomi besithuthi. Kucetyiswa ukuba kusekwe uthotho olucacileyo lolawulo lobushushu: ukusuka ekubalweni kwe-capacitor loss (I²R) ukuya kuyilo lokusasazwa kobushushu bemodyuli, kwaye ekugqibeleni, ngokulinganisa ubushushu bomzimba we-capacitor okanye ingcambu ye-pin usebenzisa ii-thermocouples okanye ii-thermal imagers, ukuqinisekisa ukuba ubushushu bomsebenzi we-capacitor bungaphantsi kwexabiso elijoliswe kulo (umz., 90°C) phantsi kobushushu obuphezulu obujikeleze umhlaba kunye neemeko zomthwalo opheleleyo, ukuze kufezekiswe ithagethi yobomi.
Uhlobo lombuzo: Ubuninzi bamandla kunye nokudityaniswa kwenkqubo
Q: Inzuzo yokunciphisa umthamo ngama-20% injani xa ithelekiswa neemveliso zemveli ezibonakala kubunjineli?
A: Xa kuvavanywa inzuzo yevolumu, kufuneka uhlalutyo lwenzuzo yenqanaba lenkqubo, kungekuphela nje ukutshintshwa kwenxalenye.
Uvavanyo olulula "lwexabiso lesithuba" luyacetyiswa: indawo egciniweyo engama-20% ingasetyenziselwa ukwandisa indawo ye-heatsink (kulindeleke ukuba inciphise ukunyuka kobushushu bemodyuli iyonke nge-X°C), okanye ukubonelela ngokhuseleko olungcono kwiinxalenye zemagnethi ezibaluleke ngakumbi, ngaloo ndlela kuphuculwe uxinano lwamandla emodyuli iyonke okanye ukusebenza kwe-EMC.
Uhlobo lombuzo: Ukuguga kunye nokusebenza kwendawo yokugcina
Q: Ngaba i-ESR yee-capacitors ze-electrolytic ezingamanzi iya konakala emva kokungasebenzi ixesha elide (njengakwixesha lezinto ezisetyenzisiweyo zesithuthi)? Ngaba kufuneka unyango olukhethekileyo xa uvula umbane okokuqala?
A: "Ukuguga kwesitoreji" kuchaphazela ucwangciso lwemveliso, ulawulo lwezinto ezisetyenzisiweyo kwizithuthi, kunye nokugcinwa emva kokuthengiswa.
Ukongeza kwinkqubo "yokwenza kwangaphambili" yokuqalisa umbane, inkqubo "yovavanyo lokuvula" kufuneka yongezwe kwisikhululo sovavanyo lwemveliso yeemodyuli ebezikwisitokhwe ngaphezulu kweenyanga ezi-6. Oku kubandakanya ukulinganisa umsinga wokuvuza kunye ne-ESR emva kokuvula, kwaye ziimodyuli eziphumelele uvavanyo kuphela ezinokususwa kumgca wemveliso okanye ezihanjiswayo. Le mfuneko kufuneka ikwabandakanywe kwisivumelwano somgangatho nomthengisi.
Uhlobo lombuzo: Isiseko sokukhetha
Q: Kwizicelo zeDC-Link ezisebenzisa iqonga le-800V i-OBC/DCDC, yintoni isiseko sokucebisa iimodeli ezimbini eziphambili zoluhlu lwe-CW3H? Abayili banokukhetha njani ngokukhawuleza imodeli efanelekileyo?
A: Iimodeli ezisemgangathweni zinokunciphisa iindleko zolawulo, kodwa kuyimfuneko ukuqinisekisa ukuba zigubungela iimeko eziphambili zokusetyenziswa. Isiseko seNgcebiso: Zombini iimodeli (CW3H 450V 330μF 25 * 50mm kunye neCW3H 450V 560μF 30 * 50mm) zigubungela iimfuno eziphambili zeqonga le-800V. Iiparameter eziphambili ezifana ne-voltage, umthamo, ubungakanani, ubomi, kunye nokumelana ne-ripple ziqinisekisiwe kwilebhu, kwaye ubukhulu bazo bumiselwe ngokulinganayo ukuze zilingane neendawo zokufakela iimodyuli eziphambili.
I-Selection Logic: Abayili banokukhetha ngokuthe ngqo imodeli efanelekileyo ngokusekelwe kwiimfuno zomthamo wesekethe (330μF/560μF) kunye nendawo yokufaka ebekelwe imodyuli (2550mm/3050mm), ngaphandle kohlengahlengiso olongezelelweyo lwesakhiwo, ngelixa ngaxeshanye behlangabezana neemfuno zokumelana nombane ophezulu, ubomi obude, kunye nokwenza ngcono iindleko. Ngaphandle kwe-voltage kunye nomthamo, nceda unikele ingqalelo kwi-resonant frequency kunye ne-high-frequency impedance curves zeemodeli ezimbini. Kwiindlela zoyilo ezine-switching frequency ephezulu (umz., >150kHz), uvavanyo olongezelelweyo okanye ukwenza ngokwezifiso nomthengisi kunokufuneka. Kucetyiswa ukuba wenze uluhlu lwangaphakathi lokukhetha kwaye usebenzise ezi modeli zimbini njengeengcebiso ezimiselweyo.
Uhlobo lombuzo: Ukuthembeka koomatshini
Q: Kwiindawo zokungcangcazela kweemoto, uzinzo loomatshini kunye nokuthembeka koqhagamshelo lombane lwee-capacitors (ezifana nee-horn capacitors) lungaqinisekiswa njani?
A: Ukuthembeka koomatshini kufuneka kuqinisekiswe ngoyilo kunye nolawulo lwenkqubo.
Izikhokelo zoyilo lwe-PCB zicacisa ngokucacileyo ukuba imingxunya ye-capacitor ye-horn capacitor kufuneka ibe yi-elliptical teardrop, kwaye uvavanyo lwe-X-ray lwe-solder joints kufuneka lwenziwe emva kokudityaniswa kwamaza okanye ukudityaniswa kwamaza okukhetha ukuqinisekisa ukuba akukho maza okanye imifantu ebandayo. Kuvavanyo lwe-DV, iiparameter zombane kufuneka zivavanywe kwakhona emva kokungcangcazela, kungekuphela nje ukuhlolwa okubonakalayo.
Uhlobo lombuzo: Uyilo loKhuseleko
Q: Kwiindlela zoyilo zeemodyuli ezincinci, ngaba indlela yokunciphisa uxinzelelo lwevalvu engaqhumiyo ye-capacitor ingalawuleka? Umonakalo wesibini kwiisekethe ezingqongileyo ungathintelwa njani xa i-capacitor ingaphumeleli?
A: Uyilo lokhuseleko lubonisa ukulawuleka kweendlela zokusilela kwaye kufuneka luhlonitshwe kuyilo lwenkqubo iyonke.
“Indawo yokukhusela uxinzelelo” yevalvu ethintela ukuqhuma kwe-capacitor kufuneka iphawulwe ngokucacileyo kwimodeli ye-3D yemodyuli kunye nomzobo wokudibanisa. Akukho zikhonkwane zocingo, izihlanganisi, ii-PCB, okanye izinto ezibuthathaka kumaqondo obushushu aphezulu/ukutshiza ezivunyelweyo ngaphakathi kweli candelo. Lo ngumgaqo woyilo onyanzelekileyo.
Uhlobo lombuzo: Iindleko vs. Ukusebenza okutshintshiselanayo
Q: Phantsi koxinzelelo lweendleko, ii-capacitors ze-electrolytic ezine-voltage ephezulu kunye nee-capacitors zefilimu kufuneka zilinganiswe njani kwizicelo ze-DC-Link?
A: Utshintsho oluhambelana neendleko lufuna uhlalutyo lobungakanani olusekelwe kwiinjongo ezithile zeprojekthi.
Kucetyiswa ukusebenzisa imodeli ye-LCC elula equka izinto ezifana neendleko zokuqala, izinga lokusilela elilindelekileyo, iindleko zomonakalo ezinxulumene noko, iindleko zewaranti, kunye nomonakalo webhrendi ukuze kuthelekiswe. Kwiiprojekthi ezijongene neendleko zizonke kwixesha lobomi bazo okanye ezineemfuno eziphezulu kakhulu zendawo, ii-capacitors ze-electrolytic ezisebenzayo ezifana ne-CW3H zihlala ziyindlela engcono yobunjineli endaweni yee-capacitors zefilimu.
Uhlobo lombuzo: Ukuzinza kwesantya sokutshaja
Q: Xa utshaja izithuthi ze-800V ekhaya, isantya sokutshaja ngamanye amaxesha siyatshintshatshintsha. Ngaba oku kunxulumene nee-capacitors ze-DC-Link kwi-OBC (On-Board Charger)?
A: Uzinzo lokutshaja luphawu lokusebenza kwinqanaba lenkqubo. Unobangela oyintloko kufuneka uchongwe njengee-capacitors okanye i-control loop.
Kuvavanyo lwebhentshi, phantsi kweemeko ezifanayo zokufaka/zokukhupha, zama ukuthelekisa i-spectrum ye-ripple ye-voltage yebhasi emva kokutshintsha ii-capacitors ngee-batches okanye iimpawu ezahlukeneyo. Ukuba i-ripple (ingakumbi kwi-frequency ephezulu) iyanda kakhulu kwaye ibangela ukungazinzi kwe-loop, ukubaluleka kwe-capacitor kuyaqinisekiswa. Kwangaxeshanye, jonga ukuba ubushushu kwindawo yokufakelwa kwe-capacitor budlula umda.
Uhlobo Lombuzo: Ukhuseleko Lokutshaja Oluphezulu
Q: Kwimozulu eshushu yasehlotyeni, xa utshaja ngesikhululo sokutshaja sasekhaya, indawo yokutshaja ekwibhodi iba shushu kakhulu. Ngaba oku kunxulumene nokumelana nobushushu be-capacitor ye-DC-Link? Ngaba kukho umngcipheko wokhuseleko?
A: Ukuthembeka phantsi kwamaqondo obushushu aphezulu yeyona nto iphambili ekuvavanyweni nasekuqinisekisweni, kungekuphela nje kwiinkxalabo zethiyori.
Kuvavanyo lokunyamezela umthwalo opheleleyo olusebenzisa ubushushu obuphezulu, ukongeza ekujongeni ubushushu be-capacitor, kuyacetyiswa ukuba kongezwe ukubekwa kweliso ngexesha langempela lomsinga we-capacitor ripple. Ukuba i-current waveform igqwethekile okanye ixabiso elisebenzayo liphezulu ngokungaqhelekanga, isenokuba luphawu lokuqala lokwanda kwe-capacitor ESR, ekufuneka ifundwe njengesilumkiso sokungaphumeleli.
Uhlobo Lombuzo: Iindleko Zokutshintsha I-Capacitor
Q: Ngexesha lokulungiswa, ndixelelwe ukuba i-capacitor ye-DC-Link kufuneka itshintshwe. Ngaba iindleko zokutshintshwa kolu hlobo lwe-capacitor ye-horn yolwelo ziphezulu? Ngaba ixabisa kancinci xa ithelekiswa nezinye iintlobo ze-capacitors?
A: Iindleko zokutshintsha ziyinxalenye yeendleko zokuthengisa nezokuvelisa emva kokuthengisa kwaye kufuneka ziqwalaselwe kuyo yonke inkqubo.
Xa uvavanya, kubalulekile ukuqwalasela kungekuphela nje ixabiso leyunithi yezinto zokwakha kodwa nokunciphisa amazinga okubuya kwexesha lewaranti okubangelwa kukuphuculwa kweMean Time Between Failures (MTBF), kunye nokunciphisa iintlobo zezixhobo ezingasetyenziswayo kunye nexesha lokulungisa ngenxa yoyilo oluqhelekileyo. Le yeyona nzuzo yexabiso lokwenyani.
Uhlobo Lombuzo: Ukuphazamiseka Kokutshaja kunye Nokumelana Nevolthi
Q: Kwizithuthi ze-800V, ezinye aziphazamisi ukutshaja, ngelixa ezinye ngamanye amaxesha zifumana ukuphazamiseka kokutshaja ngenxa "yevolthi engaqhelekanga." Ngaba oku kunxulumene nokusebenza kwevolthi yokumelana ye-capacitor ye-DC-Link?
A: Ukuphazamiseka "kwe-voltage engaqhelekanga" kubangelwa yindlela yokukhusela kwaye kufuna ukuveliswa kwakhona kunye nohlalutyo lwesizathu esiyintloko.
Yakha imeko yovavanyo ukuze ulinganise ukuphazamiseka kwegridi (ezifana nokujika kwevolthi) okanye amanyathelo omthwalo. Sebenzisa i-oscilloscope ekhawulezayo ukubamba i-waveform yevolthi yebhasi kunye nomsinga we-capacitor ngaphambi kokuba ukhuseleko luqaliswe. Hlalutya ukuba ivolthi yokushushu iyadlula na ireyithingi yokushushu kwe-capacitor kunye nesantya sokuphendula kwe-capacitor.
Uhlobo lombuzo: Ukufanisa ubomi bonke
Q: Njengenxalenye yeemoto, ndifuna ukuba ubomi be-capacitor bube kufutshane nobo bemoto yonke. Ngaba uthotho lwe-CW3H luyahlangabezana nale mfuneko?
A: Ukulinganisa ixesha lobomi kufuneka kusekelwe kubalo oluvela kwidatha yokusetyenziswa kokwenyani, kungekuphela nje kwixabiso eliqhelekileyo.
Kucetyiswa ukuba kukhutshwe iimodeli eziqhelekileyo zokuziphatha kokutshaja kwabasebenzisi (ezifana nokutshaja ngokukhawuleza, ubude bexesha, kunye nokusasazwa kobushushu be-ambient) kwi-big data yesithuthi, ziguqulwe zibe ziiprofayili zobushushu bokusebenza kwe-capacitor, uze uzidibanise nemodeli yobomi obubonelelwe ngumthengisi ukuze kuqikelelwe ubomi obuchanekileyo bokuqinisekiswa koyilo.
Uhlobo lombuzo: Iziphumo zokungcangcazela kwii-Capacitors
Q: Ngaba ukuqhuba rhoqo izithuthi ze-800V kwiindlela zeentaba kunye neendawo ezinamaqhuqhuva kuyayonakalisa i-DC-Link capacitor, nto leyo ekhokelela ekutshajeni okanye ekucimeni kombane?
A: Ukuthembeka kokungcangcazela kufuneka kuqinisekiswe ngexesha lesigaba se-DV ukuze kuthintelwe iingxaki zemarike kamva.
Uvavanyo lokungcangcazela, ukongeza ekutsaleni rhoqo, kufuneka luquke uvavanyo lokungcangcazela olungacwangciswanga olusekelwe kwi-spectra yendlela yokwenyani. Emva kovavanyo, kufuneka kwenziwe uvavanyo olusebenzayo kunye nokulinganiswa kweeparameter. Okubaluleke ngakumbi, i-capacitor kufuneka ihlulwe kwaye ihlalutywe ukujonga umonakalo omncinci obangelwe kukungcangcazela kwisakhiwo sangaphakathi sokujika kunye noqhagamshelo lwe-electrode.
Uhlobo lombuzo: Ukusebenza kakuhle kweendleko
Q: Xa kuthelekiswa nee-capacitors ze-electrolytic zemveli ezine-voltage ephezulu kunye nee-capacitors zefilimu, zeziphi izibonelelo ezisebenzayo zokukhetha uthotho lwe-CW3H ngokweendleko kunye nokusebenza?
A: Ukusebenza kakuhle kweendleko yeyona nto iphambili ekwenzeni izigqibo zobunjineli kwaye ifuna inkxaso yedatha enamacala amaninzi.
Misela "iTheyibhile yokuBekisa iMveliso yoKhuphiswano" ukuze ufumane amanqaku ngokwenani kwii-capacitors ze-CW3H ngokuchasene nee-capacitors ze-electrolytic ezifanayo, ii-capacitors ze-polymer, kunye nee-capacitors zefilimu kwiimilinganiselo eziphambili ezifana ne-capacitance ngevolumu yeyunithi, i-ESR ngexabiso leyunithi, ubomi bobushushu obuphezulu, kunye ne-impedance ephezulu. Dibanisa oku kunye nobunzima beprojekthi ukwenza iingcebiso zokukhetha okujolise kuko.
Uhlobo Lombuzo: Ukuhambelana Kokutshintshwa
Q: Ngaphambili bendisebenzisa ii-capacitors ezineenkcazo ezifanayo nezinye iimpawu. Ngaba ndingazitshintsha ngokuthe ngqo ngothotho lwe-CW3H?
A: Ukuhambelana kokutshintshwa kunxulumene nokulula kunye neengozi zokutshintshwa komgca wemveliso kunye nokugcinwa emva kokuthengisa.
Ngaphambi kokuba kungeniswe into entsha, kufuneka kwenziwe uvavanyo olupheleleyo lokuqinisekisa ngqo (DVT), oluquka ukusebenza kombane, ukunyuka kobushushu, ubomi obude, kunye nokungcangcazela, ukuqinisekisa ukuba ukusebenza akukho ngaphantsi koyilo lokuqala. Kwangaxeshanye, vavanya ukuba ububanzi bomngxuma we-PCB, umgama wokusika, njl.njl., ziyahambelana ngokupheleleyo na ukuze kuthintelwe iingxaki zenkqubo ngexesha lokuvelisa okanye lokulungisa.
Uhlobo Lombuzo: Iimfuneko Zokufakela
Q: Ngaba kukho naziphi na iimfuno zenkqubo ekhethekileyo okanye amanyathelo okhuseleko xa kufakwa ii-capacitors ze-CW3H series?
A: Inkqubo yokufakela linyathelo lokugqibela lokuqinisekisa ukuthembeka kwaye kufuneka ibhalwe kwimiyalelo yomsebenzi.
I-SOP kufuneka ichaze ngokucacileyo oku: 1) Hlola ngokubonakalayo inkangeleko ye-capacitor kunye nee-leads phambi kokuba ufake; 2) Cacisa i-torque yokuqinisa ii-fixing clamps; 3) Jonga ukugcwala kwe-solder joint emva kokunyibilikisa amaza; 4) Kucetyiswa ukuba ufake i-fixing glue kwisiseko se-leads (ukuhambelana kwekhemikhali ye-glue kunye ne-capacitor casing kufuneka kuhlolwe).
Uhlobo lweNgxaki: Ukusombulula iingxaki
Q: Yintoni ekufuneka yenziwe xa kufunyenwe ukunyuka okungaqhelekanga kobushushu okanye ukwehla kokusebenza kwe-capacitor ngexesha lokusetyenziswa?
A: Inkqubo yokusombulula iingxaki kufuneka imiselwe ngendlela efanayo ukuze kuqinisekiswe ngokukhawuleza ukuba ingxaki ikwicandelo okanye kwinkqubo.
Yila isikhokelo sokusombulula iingxaki kwindawo: Okokuqala, linganisa i-capacitance, i-ESR, kunye nomsinga wokuvuza we-capacitor enengxaki uze uzithelekise nedatha; okwesibini, jonga iisekethe ezijikelezileyo ukuze ubone iimpawu zomsinga ogqithisileyo okanye i-overvoltage; okwesithathu, yenza uvavanyo lokuthelekisa kwinxalenye enengxaki kunye nenxalenye elungileyo phantsi kweemeko ezifanayo ukuze uvelise ingxaki kwakhona. Iziphumo zohlalutyo kufuneka zibuyiselwe kumthengisi ukuze ahlalutye ukwenzeka (FA).
Ixesha leposi: Disemba-11-2025