Fais fab zaus series resonant withstand voltage ntaus ntawv? Wuhan UHV tshwj xeeb hauv kev tsim khoomscov resonance, nrog ntau yam khoom xaiv thiab kev kuaj hluav taws xob. Nrhiavseries resonance, xaiv Wuhan UHV.
Kev nyab xeeb ntawm kev hloov pauv yuav tsum tsis yog tsuas yog tias qhov kev ua tau zoo ntawm transformer ua tau raws li lub teb chaws cov qauv thiab cov neeg siv kev cai, tab sis kuj hais tias lub rwb thaiv tsev hluav taws xob lub zog ntawm lub transformer ua tau raws li cov qauv kev cai. Lub zog hluav taws xob ntawm lub tshuab hloov hluav taws xob yog qhov tsim nyog rau kev ntsuas nws txoj kev nyab xeeb thiab txhim khu kev qha nyob rau hauv ib txwm ua haujlwm voltage thiab txawv txav, thiab lub zog zaus tiv thaiv qhov ntsuas hluav taws xob yog ib qho ntawm cov kev sim. Lub sij hawm luv luv - lub sij hawm fais fab zaus tiv taus qhov ntsuas hluav taws xob yog siv cov ntsuas ntsuas qhov ntsuas hluav taws xob (tus nqi zoo) rau lub rwb thaiv tsev ib zaug. Thaum lub sij hawm lub hwj chim zaus tiv taus qhov ntsuas voltage, qhov kev sim winding thiab nws cov thawj coj ntawm lub transformer, nrog rau cov khoom txuas nrog nws (xws li cov keyboards), txhua tus raug rau tib qhov kev ntsuas hluav taws xob, thaum lub tshuab tsis ntsuas winding yog luv luv circuited rau hauv av. Rau tag nrho cov insulated transformers (piv txwv li nrog tib theem rwb thaiv tsev thaum pib thiab xaus ntawm winding), lub zog zaus rwb thaiv tsev theem thiab lub zog zaus tiv taus voltage tus nqi ntawm qhov pib thiab qhov kawg ntawm winding yog zoo ib yam. Rau graded insulated transformers (piv txwv li nrog cov rwb thaiv tsev sib txawv ntawm qhov pib thiab qhov kawg ntawm winding), qhov ntsuas tus nqi ntawm lub zog zaus tiv taus voltage yog zoo ib yam nrog lub hwj chim zaus rwb thaiv tsev theem ntawm qhov kawg ntawm winding.
Lub hom phiaj ntawm lub zog zaus tiv thaiv qhov ntsuas hluav taws xob yog txhawm rau ntsuas lub zog rwb thaiv tsev tseem ceeb ntawm cov cua ntsawj ntshab thiab hauv av thiab nruab nrab ntawm cov windings. Lub hom phiaj no tuaj yeem ua tiav rau tag nrho cov insulated transformers, tab sis rau graded insulated transformers, tsuas yog lub rwb thaiv tsev lub zog ntawm winding rau hlau yoke kawg thiab lub rwb thaiv tsev lub zog ntawm winding ib feem ua rau hauv av yuav raug soj ntsuam. Raws li rau lub zog rwb thaiv tsev ntawm winding rau hauv av thiab nruab nrab ntawm windings, nws tsis tuaj yeem ua tiav lub hom phiaj kev ntsuas.
1. Cov khoom siv sim
Lub hwj chim zaus tiv taus qhov ntsuas hluav taws xob feem ntau muaj cov khoom siv hluav taws xob kuaj, ntsuas transformer, ntsuas thiab cov cuab yeej tiv thaiv. Lub hwj huam mov yuav tsum tau kho nyob rau hauv lub hwj chim zaus withstand voltage test, uas yuav ua tau tiav los ntawm nws tus kheej coupling voltage regulators, hloov coil voltage regulators, synchronous generator sets, thiab lwm yam. voltage rau qhov tsawg voltage sab ntawm qhov ntsuas transformer.
Synchronous generator teeb yog qhov zoo tshaj plaws adjustable zog qhov chaw. Nws qhov zoo yog ruaj khov zaus thiab zoo waveform. Nws qhov tsis zoo yog kim, hneev taw loj, thiab lub suab nrov thaum ua haujlwm. Thaum lub sij hawm lub hwj chim zaus withstand voltage test, vim lub capacitive xwm ntawm lub load, yog hais tias cov nyiaj them tsis zoo thaum siv raws li ib tug fais fab mov, tus kheej excitation feem ntau tshwm sim.
Ib qho autotransformer yog lub zog hloov pauv uas siv cov zawv zawg sib cuag kom txav mus raws cov cua. Nws cov kev tswj hluav taws xob tsis sib xws thiab tau muab qhab nia, tab sis txhua theem tau muab faib ua kom zoo. Vim nws tus nqi qis, yooj yim txav tau yooj yim, tsis tshua muaj to tsis kam, zoo waveform, thiab kev siv dav. Tab sis vim nws cov zawv zawg sib cuag, nws lub peev xwm raug txwv, ua rau nws tsim nyog rau kev tswj hluav taws xob hauv cov peev txheej me me transformers.
Lub hauv paus ntsiab lus ntawm kev tswj hluav taws xob ntawm lub coil regulator yog txuas ob lub windings nrog sib npaug sib npaug tab sis rov qab winding cov lus qhia hauv series, thiab siv luv luv -circuit winding los npog ob lub windings hauv series. Qhov luv -circuit winding tuaj yeem nce thiab nqis, yog li tswj qhov voltage. Vim tias tsis muaj kev sib cuag ntawm cov zawv zawg nyob rau hauv qhov hloov pauv coil regulator, nws lub peev xwm tuaj yeem ua tau loj heev thiab tuaj yeem siv rau kev ntsuas cov peev txheej loj dua. Txawm li cas los xij, vim qhov muaj peev xwm saturation ntawm cov hlau nplaum hluav taws xob hauv cov tub ntxhais hlau ntawm kev hloov coil regulator, qhov voltage tso zis waveform yuav tsis zoo. Yog li, kev ntsuas yuav tsum tau ua raws li qhov xwm txheej tiag tiag thaum xaiv.
Test transformer yog cov cuab yeej tseem ceeb rau kev tsim hluav taws xob ntsuas hluav taws xob. Vim lub fact tias qhov kev sim transformer coj raws li ib tug ntshiab capacitor thaum lub sij hawm lub hwj chim zaus nrog voltage test, qhov luaj li cas ntawm cov qauv ntsuas capacitance yog ze ze rau kev xaiv ntawm lub peev xwm ntawm lub transformer test. Thaum lub sij hawm sim, nws yog feem ntau yuav tsum tau hais tias qhov ntsuas voltage ntawm qhov siab -voltage sab ntawm qhov ntsuas transformer yog me ntsis siab dua qhov ntsuas voltage ntawm cov qauv ntsuas, thiab nws cov ntsuas tam sim no tsis qis dua qhov siab tshaj plaws tam sim no ntawm cov qauv kuaj. Kev ntsuas thiab kev tiv thaiv cov cuab yeej yog cov cuab yeej tseem ceeb rau kev ua lub zog zaus tiv thaiv qhov ntsuas hluav taws xob. Cov cuab yeej ntsuas muaj xws li pob qhov sib txawv, electrostatic voltmeter, ntsuas winding ntawm kev sim transformer, high voltage transformer, thiab lub hwj chim zaus capacitive voltage divider. Txoj kev ntsuas feem ntau siv tam sim no yog siv lub hwj chim zaus capacitive voltage divider txuas nrog lub ncov voltmeter. Txhawm rau tiv thaiv overcurrent thiab overvoltage tshwm sim los ntawm kev tawg ntawm cov qauv ntsuas los ntawm kev ua rau muaj kev puas tsuaj rau cov khoom siv kuaj thiab cov qauv kuaj, qee txoj kev yuav tsum tau coj los tiv thaiv lawv thaum lub sij hawm lub hwj chim zaus tiv thaiv qhov ntsuas hluav taws xob. Cov txheej txheem kev tiv thaiv feem ntau suav nrog kev ntxig cov resistor nrog qee qhov kev tiv thaiv tus nqi nyob rau hauv series ntawm qhov kev sim transformer thiab cov qauv xeem, txuas cov kev tiv thaiv pob sib txawv nyob rau hauv parallel nrog cov qauv xeem, thiab txhim kho overvoltage thiab overcurrent tiv thaiv cov cuab yeej ntawm qhov qis voltage ntawm qhov ntsuas transformer.
2. Cov teeb meem yuav tsum tau muab sau rau hauv voltage withstand test
Ua ntej, yog lub tshuab hluav taws xob teeb siv los ua lub zog hluav taws xob rau qhov ntsuas hluav taws xob, kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov tshwm sim ntawm tus kheej excitation ntawm lub tshuab hluav taws xob. Ua ntej qhov kev xeem, lub capacitance tam sim no ntawm lub kaw lus yuav tsum tau xam raws li lub capacitance ntawm lub transformer kuaj, thiab ib tug tsim nyog cov nqi reactance yuav tsum tau xaiv. Thib ob, xaiv qhov ntsuas ntsuas tsim nyog uas ua tau raws li qhov yuav tsum tau ua raws li qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas. Thaum xaiv qhov hluav taws xob faib hluav taws xob, kev saib xyuas yuav tsum tau them rau qhov yuav tsum tau muab tso rau ntawm qhov hluav taws xob faib hluav taws xob, tshwj xeeb tshaj yog xaiv cov khoom siv hluav taws xob tsawg-voltage side. Lub ncov meter siv rau calibration yuav tsum tsis txhob hloov nrog lwm cov qauv ntawm cov twj paj nruag. Txwv tsis pub, nws yuav cuam tshuam rau qhov sib faib hluav taws xob thiab ua rau qhov ntsuas tsis raug.
Cov khoom tiv thaiv tiv thaiv yog siv los txwv qhov luv luv -circuit tam sim no thaum lub transformer kuaj puas lawm. Yog hais tias tus tiv thaiv resistor tsis txuas nrog series, nws yog sib npaug rau qhov kev sim transformer ncaj qha luv luv Circuit Court ntawm ib tug ntau dua tso zis voltage thaum lub sim transformer tawg, uas yuav ua rau ib tug loj luv luv - Circuit Court tam sim no thiab ua kev puas tsuaj rau lub transformer test. Kev phom sij txaus ntshai yuav tshwm sim nyob rau hauv siab -voltage winding, uas ua rau overvoltage ntawm ob qho tib si kuaj qauv thiab qhov ntsuas transformer. Yog li ntawd, nws yog ib qho tsim nyog los txwv qhov luv luv -circuit tam sim no rau tus nqi tso cai, yog li yuav tsum muaj kev tiv thaiv kev tiv thaiv, thiab nws cov nqi tiv thaiv feem ntau yog siv raws li qhov luv luv - Circuit Court tam sim no txwv nyob rau hauv qib tso cai.