Enye yezinto ezivame kakhulu ezinephutha ezinhlelweni ze-HVAC zesigaba esisodwa ama-capacitor asebenzayo, kangangokuthi ngezinye izikhathi sibiza ochwepheshe abancane ngokuthi “abashintshi be-capacitor.”Nakuba ama-capacitor angase abe lula ukuwahlonza nokuwashintsha, kunezinto eziningi ochwepheshe okungenzeka bangazazi.
I-capacitor iyithuluzi eligcina amanani ahlukile kumapuleti ensimbi aphikisanayo.Nakuba ama-capacitor angasetshenziswa kumasekhethi akhulisa amandla kagesi, awawandisi ngokwawo amandla ogesi.Sivame ukubona ukuthi i-voltage ngaphesheya kwe-capacitor iphakeme kune-voltage yomugqa, kodwa lokhu kubangelwa amandla angemuva e-electromotive (i-back electromotive force) ekhiqizwa injini, hhayi i-capacitor.
Uchwepheshe uphawule ukuthi uhlangothi lwamandla kagesi luxhumeke kutheminali engu-C noma ohlangothini oluphambene namawindi agijimayo.Ochwepheshe abaningi bacabanga ukuthi la mandla "aphakela" ku-terminal, akhushulwe noma adluliselwe, bese engena ku-compressor noma injini ngakolunye uhlangothi.Nakuba lokhu kungase kube nengqondo, empeleni akuyona indlela ama-capacitor asebenza ngayo.
I-HVAC yokusebenza capacitor ejwayelekile amashidi amabili nje amade amade azacile, afakwe isithiyo sepulasitiki esincanyana kakhulu, futhi acwiliswe emafutheni ukusiza ukuqeda ukushisa.Njengesisekelo nesesibili se-transformer, lezi zingcezu ezimbili zensimbi azikaze zixhumane, kodwa ama-electron ayanqwabelana futhi aphume ngomjikelezo ngamunye wamanje oshintshanayo.Isibonelo, ama-electron aqoqwe ohlangothini luka-“C” lwe-capacitor ngeke “adlule” umgoqo wepulasitiki wokuvikela ohlangothini lwe-“Herm” noma “Fan”.Lawa mandla amabili avele ahehe futhi akhulule i-capacitor ohlangothini olufanayo lapho bengena khona.
Kunjini ye-PSC enezintambo ezifanele (Permanent Separate Capacitor), okuwukuphela kwendlela isiqalo sokuvunguza esingadlula ngayo noma iyiphi yamanje ukugcina nokukhipha i-capacitor.Uma iphezulu i-MFD ye-capacitor, amandla agciniwe aba makhulu kanye ne-amperage yokujika kokuqala.Uma i-capacitor ihluleka ngokuphelele ngaphansi kwe-zero capacitance, kuyafana nokuqala kokuvula isifunda esivulekile.Ngokuzayo lapho uthola ukuthi i-capacitor egijimayo ayisebenzi kahle (ayikho i-capacitor yokuqala), sebenzisa amapulangwe ukuze ufunde i-amperage ekujikeni kokuqala futhi ubone ukuthi ngiqonde ukuthini.
Yingakho i-capacitor enkulu ingalimaza ngokushesha i-compressor.Ngokukhuphula i-current ekujikeni kokuqala, i-compressor yokuqala yokujika izoba sengozini yokwehluleka kwangaphambi kwesikhathi.
Ochwepheshe abaningi bacabanga ukuthi kufanele bashintshe ama-capacitor angu-370v bafake ama-capacitor angu-370v.I-voltage elinganiselwe ibonisa ukuthi "akumele idlule" inani elilinganiselwe, okusho ukuthi ungakwazi ukufaka esikhundleni se-370v nge-440v, kodwa awukwazi ukufaka esikhundleni se-440v nge-370v.Lokhu kungezwani kuvame kakhulu kangangokuthi abakhiqizi abaningi be-capacitor baqala ukunyathela ama-capacitor angu-440v nge-370/440v ukuze nje baqede ukudideka.
Udinga nje ukukala i-current (amperes) ye-motor's start winding egeleza isuka ku-capacitor bese uyiphindaphinda ngo-2652 (3183 ngamandla angu-60hz, namandla angu-50hz), bese uhlukanisa leyo nombolo nge-voltage oyikale ku-capacitor.
Ingabe ufuna ukwazi okwengeziwe ngomkhakha we-HVAC wezindaba nolwazi?Joyina IZINDABA ku-Facebook, Twitter naku-LinkedIn manje!
UBryan Orr uyi-HVAC kanye nosonkontileka kagesi e-Orlando, eFlorida.Ungumsunguli we-HVACRSchool.com kanye ne-HVAC School Podcast.Uneminyaka engu-15 ebambe iqhaza ekuqeqesheni ochwepheshe.
Okuqukethwe okuxhasiwe kuyisigaba esikhokhelwayo esikhethekile lapho izinkampani zemboni zihlinzeka ngokuqukethwe okungekona okokuthengisa kwekhwalithi ephezulu, okunenjongo okuzungeze izihloko ezithakaselwa izethameli zezindaba ze-ACHR.Konke okuqukethwe okuxhasiwe kunikezwa izinkampani zokukhangisa.Unentshisekelo yokubamba iqhaza esigabeni sethu sokuqukethwe esixhasiwe?Sicela uthinte omele indawo yangakini.