Dab tsi yog Harmonic Killer Ntawm Daim phiaj fais fab, qhov siab -voltage Tandem Reactor?

Muab zais rau hauv daim phiaj hluav taws xob yog ib pab pawg tsis pom ntawm cov teeb meem -kev sib haum xeeb. Lawv yog tsim los ntawm nonlinear loads xws li zaus converters, rectifiers thiab hluav taws xob arc, tov nrog high- zaus tam sim no xws li 5th, 7th thiab 11th harmonics, distort voltage waveforms, ua rau cov cuab yeej overheat thiab hnub nyoog thiab feem ntau ua rau lub tsev txhab nyiaj capacitor "tuag. High -} voltage resistors yog tshwj xeeb. harmonics.
harmonics los ntawm qhov twg thiab vim li cas lawv yuav tsum tau muab tshem tawm?
Qhov zoo tshaj plaws, daim phiaj hluav taws xob tam sim no yuav tsum yog qhov ntshiab 50Hz sine yoj. Hauv kev muaj tiag, txawm li cas los xij, ntau lub tshuab hluav taws xob- cov khoom siv hluav taws xob tau txiav tam sim no rau hauv cov duab jagged, ua rau ntau qhov siab - txiav txim siab sib haum xeeb. Thaum cov kev sib haum xeeb tam sim no ntws mus rau hauv cov tsev txhab nyiaj capacitor, qhov tshwm sim yog qhov hnyav heev - - lub capacitor impedance rau high-frequency harmonics yog tsawg heev, ua rau cov harmonic tam sim no tau zoo heev amplified, ua rau lub capacitor overheat, rwb thaiv tsev tawg, thiab txawm resonate. Qhov txaus ntshai dua, lub txhab nyiaj capacitor tuaj yeem txhaj tshuaj sib haum xeeb rau hauv daim phiaj, tsim kom muaj "kev sib haum xeeb ua kom muaj zog" uas ua rau qhov tsis zoo ntawm hluav taws xob thoob plaws cheeb tsam.
Qhov ntawd yog qhov siab -voltage tandem reactors ua.
Lawv cov riam phom tseem ceeb: "kev ua si zaus" ntawm inductance thiab capacitance
Txawm li cas los xij, tus tsim ntawm high voltage series reactor yog precisely 'anti-resonance'. Los ntawm kev xaiv qhov tsim nyog reactance tus nqi - feem ntau 1%, 4.5%, 5%, 6%, 12%, thiab lwm yam . --resonant zaus ntawm lub series Circuit Court yuav qis dua qhov qis tshaj harmonic zaus (xws li . 250 Hz rau 5 harmonics), uas ua rau lub Circuit Court muaj harmonic impedance siab thiab zoo blocksonic tam sim no. Piv txwv li, thaum cov lus teb tus nqi yog 12%, lub resonant point yog hais txog 204Hz, zoo suppressing harmonics ntawm magnitude 5 thiab saum toj no. Qhov no yog qhov feem ntau siv configuration los suppress lub thib tsib harmonic.
Tsis tsuas yog nws tsuas yog "harmonic killer," nws tseem yog ntau yam khoom siv.
Kev tawm tsam ntawm kev sib haum xeeb tsuas yog lub luag haujlwm tseem ceeb, tsis yog tib txoj haujlwm xwb, ntawm high voltage series reactor.
Ua ntej, nws txwv gushing. Thaum lub txhab nyiaj capacitor raug kaw, qhov inrush tam sim no tuaj yeem ncav cuag kaum lossis ntau pua zaus ntawm qhov ntsuas tam sim no. Los ntawm nws cov yam ntxwv inductive, series reactor txo lub ncov inrush tam sim no mus rau ntau yam tswj tau thiab tiv thaiv cov capacitors thiab hloov khoom siv.
Qhov thib ob, nws suppresses kev ua haujlwm overvoltages. Vim tias cov nyhuv damping ntawm lub reactor, Transient overvoltages tsim los ntawm kev hloov pauv tau txo qis, thiab kev nyab xeeb ntawm cov khoom siv tau zoo heev.
Peb, nyob rau hauv lub tshav pob ntawm ultra-high voltage, 220kV thiab saum toj no series reactors kuj ris lub nra ntawm txwv luv luv-circuit tam sim no. Tam sim no limiting series reactor Shanghai Sijing 500kV substation muaj qhov ntsuas tam sim no ntawm 2400A thiab qhov ntsuas impedance ntawm 14 Omega. Txoj haujlwm 500kV ntawm Brazil Brazil Tucurui qhov chaw nres tsheb fais fab txuas ntxiv txwv luv luv -circuit tam sim no rau 40kA; lub hollow qhuav qauv hnyav xwb 13 tons tab sis tiv thaiv thermal stability test ntawm 20kA / 2s.
Cov tub ntxhais qhuav, ruaj khov;
Tam sim no, feem ntau ntawm CKSC thiab CKSG series reactors dav siv nyob rau hauv 6 ~ 35kV systems yog cov txheej txheem qhuav, stacked nrog siab -zoo txias- dov silicon steel los xij, nqus impregnated thiab kub-roasted. Lawv muaj qhov kub thiab txias ua haujlwm nce thiab suab nrov tsawg (tsawg dua lossis sib npaug li 30dB), tuaj yeem ua haujlwm ntev dua hauv -25℃rau +45℃ib puag ncig, thiab muaj ntau xyoo ntawm kev saib xyuas-dawb lifespan.
Yog li lub sijhawm tom ntej koj hnov ​​​​cov hloov pauv zaus buzzing nyob ib puag ncig ntawm daim phiaj hluav taws xob, nco ntsoov - siab-voltage tandem reactors tau ntsiag to ntes txhua qhov kev sib raug zoo uas sim ua paug rau lub nthwv dej, tiv thaiv kev huv thiab kev nyab xeeb ntawm tag nrho cov kab hluav taws xob. Nws yog unostentatious tab sis indispensable.