Fais fab zaus series resonance kuajyog ib qho tshwj xeeb siab -voltage test method dav siv hauv kev lag luam hluav taws xob los xyuas qhov kev ua tau zoo ntawm cov khoom siv hluav taws xob xws li transformers, cables, switchgear, thiab GIS nyob rau hauv nominal lossis sib npaug zog zaus voltage zaus. Txoj kev no ua tau zoo ua kom muaj siab -voltage, low-tam sim no cov teeb liab sim siv cov txheej txheem resonance series. Nws txo qhov loj ntawm cov cuab yeej ntsuas thiab txo cov kev siv hluav taws xob thaum simulating tiag tiag kev ua haujlwm.
Cov khoom tseem ceeb
Hloov pauv zaus fais fab mov: Muab qhov tsawg-voltage, adjustable- zaus (feem ntau 30–300 Hz) alternating tam sim no rau Circuit Court ua haujlwm.
Excitation transformer: Ua kom qhov hluav taws xob qis los ntawm cov khoom siv hluav taws xob mus rau theem nruab nrab (piv txwv li, 0-10 kV) kom ua rau lub zog resonant.
Inductance kauj (reactor): Kev hloov pauv lossis ruaj khov inductor uas ua rau qhov inductive ntawm lub resonant circuit.
Capacitive load (DUT): Cov khoom siv hluav taws xob nyob rau hauv kev sim (piv txwv li, cable lossis transformer), uas nws capacitance ua raws li qhov capacitive feem ntawm lub voj voog.
Kev ntsuas thiab kev tiv thaiv system: Saib xyuas qhov voltage, tam sim no, zaus, thiab ib nrab tso tawm. Activates tsis siv neeg kaw thaum muaj qhov tsis zoo tshwm sim.
Lub hauv paus ntsiab lus tseem ceeb ntawm qhov kev sim no yog siv cov inductor sib txawv (reactor) thiab qhov muaj peev xwm ntawm cov cuab yeej nyob rau hauv kev sim (piv txwv li, txuas txuas hluav taws xob) los ua ib qho hluav taws xob resonant. Hluav taws xob resonance tshwm sim thaum lub inductive reactance ntawm lub reactor sib tw lub capacitive reactance ntawm lub mains zaus. Nyob rau hauv lub xeev no, cov reactance Cheebtsam tshem tawm ib leeg, yog li ntawd tsuas yog ib tug tsawg kawg nkaus input hwj chim los ntawm lub hwj chim qhov chaw yuav tsum tau muaj ib tug tsis tshua muaj siab tso zis voltage nyob rau hauv lub ntaus ntawv nyob rau hauv kev sim. Qhov no ua rau cov txheej txheem xeem tau zoo heev, muaj kev nyab xeeb, thiab tswj tau yooj yim, uas ua rau nws tsim tshwj xeeb rau cov khoom siv uas muaj peev xwm siab.
Critical resonance tej yam kev mob:
Thaum qhov kev xeem zaus (f) sib haum mus rau lub ntuj zaus (f₀) ntawm Circuit Court:
(XL= 2π fL=Xc=1 \\2π fL=X0)
Hauv qhov no:
Tag nrho cov impedance ntawm Circuit Court yog tsawg (Z=R, ntshiab ohmic impedance).
Tam sim no nyob rau hauv Circuit Court mus txog nws tus nqi siab tshaj (I=U/R, qhov twg U yog qhov input voltage).
Qhov hluav taws xob thoob plaws lub capacitor (cov cuab yeej nyob rau hauv kev sim) yog amplified los ntawm qhov zoo tshaj plaws (Q):
Uc =Q*Uhauv
Qhov no txhais tau hais tias qhov kev sim ntsuas tuaj yeem tsim qhov hluav taws xob siab (piv txwv li, 10 kV txog 500 kV) rau cov khoom siv hauv kev sim nrog lub zog qis qis (hauv kW ntau), tshem tawm qhov xav tau siab - muaj peev xwm siab -voltage transformers.
Cov kws tshaj lij xaiv Wuhan Goldhome Hipot Electrical Co., Ltd. rau qhov tseeb thiab txhim khu kev qhafais fab zaus series resonant kuajkev daws teeb meem. Peb tshwj xeeb hauv kev tsim khoom rugged, ruaj, thiab cov neeg siv-cov phooj ywg series resonant xeem tshuab uas xa cov txiaj ntsig raug rau ntau hom kev siv hluav taws xob ntau, pab lub zog thiab kev lag luam ua haujlwm kom muaj kev nyab xeeb thiab ruaj khov daim phiaj ua haujlwm.
