Dual Canopy Mechanic Hluav Taws Xob Engineering Co., Ltd. Thov koj xav tias dawb rau cov lag luam wholesale luv nqi khoom muag ntawm no thiab tau txais cov lus hais los ntawm peb lub hoobkas. Customized xaj yog txais tos.
Sweep Frequency Response yog dab tsi?
Thaum koj tab tom ntsuas qhov xwm txheej ntawm lub tshuab hluav taws xob loj lossis lub tshuab hluav taws xob, SFRA kev sim muaj qee yam uas feem ntau cov kev ntsuas hluav taws xob tsis tuaj yeem- saib ncaj qha ntawm lub tshuab hluav taws xob hauv lub cev yam tsis qhib lub tank. Txoj kev kho lub winding raws li ib tug faib RLC network, uas yog raws nraim li nws yog hluav taws xob. Koj txhaj lub teeb liab cheb ntawm 20 Hz mus txog 10 MHz thiab saib seb lub network teb li cas thoob plaws qhov ntau.
Ib qho kev hloov pauv ntawm lub cev hauv qhov hloov pauv geometry ntawm lub network ntawd. Lub winding uas tau twisted nyob rau hauv luv luv - Circuit Court quab yuam, ib tug disk uas muaj bulged, los yog ib tug core uas tau hloov nyob rau hauv nws clamps hloov lub capacitance ntawm lem thiab inductance ntawm cov seem. Cov kev hloov no tsis hloov maj mam hauv cov ntaub ntawv. Lawv tshwm sim raws li kev hloov pauv hauv qhov amplitude thiab theem kab, qhov uas tib neeg feem ntau hu ua Bode zajlus. Sib piv cov kab tshiab tawm tsam lub hauv paus ntawm lub Hoobkas lossis cov ntaub ntawv ua ntej -, thiab koj tuaj yeem pom cov teeb meem uas kev soj ntsuam pom yuav ploj tag nrho.
Dab tsi ua rau qhov tshwj xeeb tshaj yog tias koj tau txais cov ntaub ntawv no yam tsis muaj cov roj ntws tawm, tsis muaj rub lub hauv paus, thiab tsis muaj lub limtiam ntawm kev tawm tsam uas yuav tsum tau kuaj xyuas sab hauv. IEC 60076-18 thiab IEEE C57.149 ob leeg lees paub tias nws yog txoj hauv kev uas tsis muaj kev puas tsuaj loj tshaj plaws uas muaj rau kev kuaj xyuas winding deformation. Nws tsis yog ib qho kev hloov pauv rau txhua yam, tab sis thaum cov lus nug yog seb cov windings tau txav mus los, nws feem ntau yog thawj qhov kev sim uas muab cov lus teb ncaj nraim.
Dab tsi tseem ceeb zais kev phom sij tuaj yeem daws tau SFR technology?
Cov pa hluav taws xob DC tsis kam, qhov sib piv, thiab cov kev ntsuas hluav taws xob tsis zoo tuaj yeem kuaj xyuas "hluav taws xob" nyuaj (xws li qhib circuits lossis luv luv luv). SFR thev naus laus zis, txawm li cas los xij, tshwj xeeb hauv kev kuaj mob ntau yam "mechanical" teeb meem:
1. Kev kuaj mob ntawm "kev puas tsuaj sab hauv" tom qab nyob ze- thaj tsam luv luv Circuit Court: luv- Circuit Court electrodynamic rog ua rau ob peb millimeters ntawm axial/radial hloov nyob rau hauv lub windings. Kev ntsuas hluav taws xob dhau, tab sis qhov siab - zaus resonance ncov ntawm SFR nkhaus qhia tau hais tias muaj kev cuam tshuam loj.
2. Kev ntsuas qhov ntev - kev thauj mus los thiab kev teeb tsa kev cuam tshuam: Tom qab cov cuab yeej tuaj txog ntawm qhov chaw, SFR kev sim tau muab piv nrog lub Hoobkas "tus ntiv tes" kom paub meej tias cov tub ntxhais thiab cov windings tau xoob thaum lub sijhawm thauj mus los.
3. Kev saib xyuas lub sijhawm ntev - kev laus thiab xoob: Kev sib txuas cov ntaub ntawv keeb kwm SFR, kev tshuaj xyuas yog ua los ntawm kev txhim kho cov tshuab tsis zoo xws li txo qis winding clamping force thiab spacer shrinkage.
4. Kev daws teeb meem tseem ceeb thiab clamping faults: Qhov tsawg-ntau zaus (<10kHz) of the SFR curve is extremely sensitive to changes in the core magnetic circuit, which can help determine multiple core grounding points or loose clamping.
Dab tsi yog qhov kev daws teeb meem Sweep Frequency Response (SFR)?
1. Portable SFR Testing System (1kHz - 2MHz): Lub teeb yuag thiab cuam tshuam -resistant. Ua-hauv siab- lub zog lithium roj teeb, ua ke nrog cov tub rog- qib shielded hlau thiab muaj zog sib nqus clamps, tsim tshwj xeeb rau qhov nyuaj electromagnetic ib puag ncig ntawm substations, ntsib ntau dua 90% ntawm - chaw xa khoom thiab ua ntej- kuaj cov cai.
2. Laboratory/Factory-Grade Wideband SFR Analysis System (20Hz - 10}MHz): Ua haujlwm siab -precision vector network analysis (VNA) architecture. Dav qis dua -frequency coverage tso cai rau cov ntsiab lus pom, thaum siab dua -frequency coverage captures feeb inter-tig deformations. Txhawb siab tsis siv neeg ntau-channel hloov pauv, haum rau kev kuaj kab ntau lawm thiab hauv{11}} kev tshawb fawb tob.
3. SFR Data Cloud Hosting thiab Cov Kev Pab Cuam Tshaj Tawm: Kho vajtse tsuas yog tus nqa khoom xwb; cov ntaub ntawv yog qhov tseem ceeb. Peb muab SFR cov ntaub ntawv huab platform los pab koj tsim "cov ntaub ntawv ntiv tes lub neej" rau txhua qhov hloov pauv. Thaum kuaj pom qhov nkhaus tsis txaus ntseeg ntawm - qhov chaw, ib qho kev xa tawm yuav tsim ib qho hauv - qhov ntsuas qhov tob ntawm peb cov ntaub ntawv kws tshaj lij thiab AI- pab algorithms.
Cov txheej txheem tsim khoom zoo li cas koom nrog?
RF connectors ntawm lub vaj huam sib luag pem hauv ntej yog torqued thaum lub sij hawm sib dhos, tsis yog txhais tes - nruj. Ntawm cov frequencies no ntsuas npog, ib tug connector nrog sloppy contact impedance tsim reflections uas tshwm sim raws li ripples nyob rau hauv cov lus teb kab. Cov kws tshaj lij hauv teb tau ntsib qhov sib txawv txaus yam tsis tas yuav nug seb qhov ntsuas nws tus kheej puas qhia cov khoom cuav. Nyob rau hauv lub enclosure, ya ya coj mus siv nyiaj -plated conductors nrog Teflon rwb thaiv tsev, uas tseem ceeb vim hais tias ntawm daim tawv nqaij nyhuv pushes tam sim no mus rau lub conductor nto saum toj no ob peb puas kilohertz. Tus qauv tooj liab nrog PVC rwb thaiv tsev zoo tib yam yuav ntxiv ob qho tib si tiv thaiv kev poob thiab dielectric nqus uas tuaj yeem npog qhov hloov pauv hloov pauv hauv lub tshuab hluav taws xob winding kos npe.
Ua ntej ib lub nkoj nkoj, nws siv sij hawm nyob rau hauv RF calibration lab ntawm lub Hoobkas hauv pem teb. Cov kab hluav taws xob tag nrho raug tshuaj xyuas tawm tsam qhov tseeb vector network analyzer- feem ntau yog Keysight PNA series- thiab ib qho kev faib LCR network uas coj zoo li lub winding tiag tiag es tsis yog qhov yooj yim 50-ohm load. Ob qho tib si amplitude thiab theem tau txheeb xyuas thoob plaws qhov cheb vim tias theem qhov tseeb feem ntau yog thawj qhov ua rau drift, thiab ntawm qhov muaj zaus txawm tias qhov me me yuam kev tuaj yeem hloov qhov chaw pom meej ntawm qhov resonance ncov los ntawm ob peb kilohertz. Qhov traceability tseem ceeb thaum tus kws ua haujlwm hauv teb sim txiav txim siab seb qhov kev sib txawv ntawm qhov sib txawv yog qhov kev hloov kho tshuab tiag tiag lossis tsuas yog ntsuas qhov tsis paub tseeb.
Cov kev ceev faj txog kev siv yog dab tsi?
Grounding yog qhov uas feem ntau SFRA kab mus tsis ncaj ncees lawm hauv daim teb. Kuv saib ib tug kws kho mob siv sijhawm ob teev los caum ib theem distortion saum 500 kHz uas zoo li cov tub ntxhais txav. Lub hauv paus ntawm lub Hoobkas tau huv. Nws muab tawm tias nws tau txiav nws cov av ua rau lub ntsej muag pleev xim es tsis yog lub pob zeb hauv av ntawm lub tank. Cov xim txheej ntxiv kom txaus impedance uas siab - zaus rov qab tam sim no hloov theem los ntawm ob peb degrees. Peb txav lub clamp mus rau ib qho tsis muaj bolts, sanded rau liab qab hlau, thiab lub phantom distortion ploj mus. Siv qhov luv tshaj plaws, hnyav tshaj plaws hauv av xaim uas koj muaj, thiab txiav nws ncaj qha rau ntawm tus thawj coj hauv av uas tsis muaj xim zoo nkauj rau ntawm lub tshuab hloov pauv. Rusty flanges los yog pleev xim rau saum npoo yuav ua rau lub siab - teb zaus.
Kev sib piv ntiv tes yog qhov tsis zam txim. Cov neeg ua haujlwm siv hluav taws xob uas kuv ua haujlwm nrog tsis tuaj yeem sib koom ua ke lawv cov kab ke nrog lub Hoobkas cov ntaub ntawv -tshwj xeeb, qhov siab tshaj plaws nyob ze 800 kHz tau hloov los ntawm kwv yees li 2 kHz. Tom qab rov kuaj xyuas txhua yam, peb pom tau hais tias qhov kev xeem cov hlau lead sib txawv li ntawm ib centimeter los ntawm lub Hoobkas teeb. Qhov kev hloov me me ntawm cov hlau lead geometry hloov qhov stray inductance txaus txav lub ncov. Txhawm rau kom muaj kev sib piv siv tau, rov ua dua lub Hoobkas sim teeb tsa raws nraim: clip txoj haujlwm, hauv av xaim ntev thiab routing, thiab txawm tias qhov sib nrug mus rau cov qauv uas nyob ib sab lossis bushings. Kho qhov teeb tsa raws li ib feem ntawm kev ntsuas, tsis yog kev xav tom qab.
Kev rho tawm tsis yog - sib tham tau. Ntawm ib chav 220 kV, cov neeg coob tau tawm ntawm cov busbars txuas nrog thaum pib cheb. Cov kab uas tau tshwm sim tau pom qhov txawv txav ntawm qhov siab -ntau zaus band uas qhia tias muaj zog winding deformation. Peb tshem tawm cov kev coj mus rau sab nraud thiab cov ripples ploj mus -qhov "deformation" yog qhov ua tau tsis zoo los ntawm kev sib txuas ntawm cov tsheb sib txuas rov qab rau hauv qhov ntsuas. Tshem tawm tag nrho cov kev sib txuas sab nraud-busbars, cables, txhua yam- ua ntej koj pib. Txhua tus neeg txuas txuas dhau los ua tus kav hlau txais xov uas thauj cov winding capacitively thiab rhuav tshem qhov siab - zaus kos npe.
Thaum kawg, av qhov bushing kawg screen. Capacitive bushings muaj qhov kawg screen uas yuav tsum tau khi rau hauv av thaum kuaj. Yog tias nws ntab, qhov siab - zaus excitation voltage tuaj yeem tshwm sim thoob plaws lub vijtsam, ua rau qee qhov tso tawm lossis tawg tawm tam sim. Feem ntau, cov ntxaij vab tshaus ntab ua haujlwm raws li lub peev xwm faib tawm uas los ntshav lub zog tawm ntawm qhov ntsuas, ua ib qho kab uas zoo li damped lossis attenuated. Ib qho yooj yim hauv av clip ntawm qhov screen davhlau ya nyob twg tiv thaiv ob qho teeb meem.
Tom qab -Kev Pabcuam Muag
Txoj Cai Warranty: 24-lub hlis lav ntawm tag nrho lub tshuab (tsis suav nrog kev puas tsuaj los ntawm tib neeg kev ua yuam kev thiab khoom siv).
Kev Saib Xyuas Lub Neej: Lub neej them nyiaj kho kev pabcuam muab tom qab lub sijhawm lav, tsuas yog them tus nqi ntawm cov khoom siv.
Teb ceev ceev: 24/7 technical support hotline, ua txhaum lub sij hawm teb <2 teev.
Peb qhov chaw nyob
Baoding Huab Center, Hebei, Suav
Xov tooj
+86 13483219412
E -mail
Salesm@dualcanopy.com
FAQ
1. Q: Dab tsi ntawm lub cev qauv ntawm lub transformer puas txawv zaus ntawm SFR nkhaus sawv cev?
A: Kev lag luam feem ntau faib lawv raws li hauv qab no:
Tsawg zaus band (20Hz - 10kHz): Feem ntau qhia txog qhov inductance/capacitance ntawm cov tub ntxhais, sib nqus Circuit Court, thiab windings rau hauv av.
Nruab nrab zaus band (10kHz - 500kHz): Feem ntau qhia txog tag nrho cov qauv ntawm windings, main inductance, thiab inter-winding capacitance.
High zaus band (500kHz - 2MHz+): Feem ntau qhia txog kev sib tshuam -tig capacitance thiab cov qauv txhuas hauv cov windings. Lub siab zaus band yog qhov nkag siab tshaj plaws rau cov me me hauv zos deformations tab sis kuj tseem muaj feem cuam tshuam los ntawm kev xaim hluav taws xob.
2. Q: Dab tsi yog qhov txawv ntawm SFR (sweep frequency method) thiab luv luv -circuit impedance method (SCI) rau kev ntsuas deformation?
A: Txoj kev luv luv -circuit impedance ntsuas tag nrho cov xaim hlau nplaum impedance ntawm lub zog zaus (50/60Hz). Nws yog rhiab heev rau tag nrho winding hloov chaw (xws li axial collapse) tab sis tsis yog rau me me hauv zos bulges los yog inter-tig deformations. SFR (Short-Circuit Impedance) yog ib qho kev ntsuas dav dav nrog qhov rhiab heev tshaj qhov luv luv -circuit impedance txoj kev. Nws feem ntau pom zoo kom siv ob txoj hauv kev ua ke rau kev hla - pov thawj.
3. Q: SFR nkhaus ntsuas ntawm -qhov chaw tsis phim lub Hoobkas ntiv tes ntawm qhov siab. Puas yog qhov no txhais tau tias nws yog distorted?
A: Most likely not. High-frequency bands (>500kHz) yog qhov tseem ceeb heev rau qhov kev sim (clamp txoj hauj lwm, grounding hlau routing, ib puag ncig qhov chaw). Yog hais tias qhov nruab nrab - mus rau - tsawg zaus bands phim zoo kawg nkaus, thiab tsuas yog qhov siab -frequency band qhia ib tug deviation, nws yog feem ntau yog ib tug "tsis muaj tseeb distortion" tshwm sim los ntawm inconsistencies ntawm nyob rau hauv - qhov chaw thaiv tej yam kev mob thiab Hoobkas specifications. Nyob rau hauv cov ntaub ntawv no, cov xaim yuav tsum tau ua tib zoo xyuas, los yog peb software "Normalization Calibration" muaj nuj nqi yuav tsum tau siv rau pab txiav txim.
Cim npe nrov: Sweep zaus teb, Tuam Tshoj Sweep Frequency teb manufacturers, lwm tus neeg, Hoobkas
