Jiangshan Scotech Hluav Taws Xob Co., Ltd.
Scotech ua tiav kev lees paub ntawm 22 MVA 33 / 11KV fais fab hloov hluav taws xob rau South Africa Cov Neeg Siv Khoom, nruj nreem qhia lub zog
Aug 28, 2025
Tso lus
From August 28 to 29, 2025, SCOTECH hosted a crucial product acceptance event – representatives from a South African client visited the site in person to conduct a comprehensive acceptance inspection of two 20/22 MVA 33/11kV liquid-immersed power transformers. Qhov kev lees txais tau raug coj tawm hauv nruj ua raws li cov qauv haujlwm thoob ntiaj teb thiab kev pom zoo sib xws. Npog txhua yam ntawm kev pov thawj ntawm cov kev hloov pauv tseem ceeb rau cov kev ntsuam xyuas tas nrho, txhua qhov txuas tau ua tiav nrog kev saib xyuas tsis zoo. Thaum kawg, ob chav nyob kis tau txais kev lees paub zoo heev, tso lub hauv paus rau Scotech kom nthuav dav ntxiv nyob rau hauv South Africa lub zog lag luam.
Ob lub kua ua kua -}}}}} Cov khoom lag luam zoo customized los ntawm SAMEYCH lub zog yuav tsum tau yoog raws li. Thaum ua hauj lwm nyob rau hauv onan (roj ntuj cua ntuj ntuj ntuj) txias xwm txheej, qhov kev ua haujlwm siab tshaj plaws nce mus txog 20 MVA; Thaum hloov mus rau onaf (roj ntuj huab cua yuam kev) hom cua txias, lub peev xwm tuaj yeem nce mus rau 22 MVA, tag nrho cov kev coj ua ntawm kev sib txawv ntawm kev siv hluav taws xob hauv South Africa. Cov ntsiab lus tseem ceeb ntawm cov khoom siab ua raws li prefe {6} Cov neeg voltage yog 11 k l yog 14.29%, lub lav, lub lav Txhua qhov ntsuas tseem ceeb tau mus txog thoob ntiaj teb qib siab ua tiav.
Thaum lub sij hawm lees txais, cov neeg sawv cev los ntawm South African African uso Client pab tau ze nrog Scoteech cov pab pawg neeg soj ntsuam thiab ua haujlwm zoo. Nrog rau cov txheej txheem thoob ntiaj teb thiab kev ntsuam xyuas cov kev qhia paub tseeb raws li kev ntsuam xyuas ntawm kev hloov pauv ntawm kev hloov pauv 'kev ua haujlwm hauv hluav taws xob, thiab kev ntseeg tau. Nyob rau hauvkev ntsuas ntawm cov roj av hauv dielectric kuaTheem, pab neeg coj cov qauv los ntawm txhua qhov chaw roj av tsis sib xws (tsis suav nrog cov kev hloov pauv hloov pauv) ua ntej txhua qhov kev ntsuam xyuas thiab tom qab kev ntsuam xyuas rwb thaiv tsev. Roj Chromatography tau siv los xyuas cov ntsiab lus ntawm hydrogen (h₂), methane (ch utterhan (ethane (c₂h₆), thiab lwm yam roj av. Cov ntaub ntawv kawg tau pom tias ua ntej kev sim, cov ntsiab lus hydrogen yog<10 ppm, the total hydrocarbons (C₁~C₂) were <20 ppm, and acetylene (C₂H₂) was 0. After the insulation test, no abnormalities were found in the oil chromatography results.
Nyob rau hauvKev ntsuas ntawm voltage piv thiab tshawb xyuas theem kev sib tsooKuaj, pab pawg sib txuas ntsuas lub voltage piv ntawm lub siab {{voltage (LV) 1}} voltage (LV) ob qho kev hloov pauv ntawm cov hloov pauv. HV sab tapping voltage ranges los ntawm 29,300 v, thiab Vector Group tau pom zoo rau Dyn1, uas tau ua tiav nrog cov qauv tsim thiab kev pom zoo. Qhov kev txheeb xyuas qhov tseeb ntawm tus coj kev sib txuas thiab qhov tseeb ntawm winding voltage piv. Nyob rau hauvTxheeb xyuas cov piv thiab polarity ntawm ua - hauv cov hloov pauv tam sim noKuaj, cov kws ntsuas ntsuas cov piv ntawm cov hloov pauv tam sim no thiab DC ua rau lawv sab theem nrab. Nws tau lees paub tias cov kev sib piv (xws li 400/1, 1200/1, thiab tus DC qhov tseem ceeb ntawm kev kos duab los ntawm kev saib xyuas qhov tseeb, thiab cov qauv ntawm kev soj ntsuam tam sim no thaum lub sijhawm hloov pauv.
TusKev Ntsuas Ntawm Winding KujNtsuam xyuas nruj me ntsis adhered rau cov tseev kom muaj ntawm cov lus 11.2.3 hauv iec 60076-1 2011 txheem. Tom qab cov hloov pauv tau muaj cov kua insulating thiab ua tsis tau zoo dua 5 k) rau {{} {{{{{{{{{{{{10} {voltage Windings ntawm txhua txoj haujlwm tapping tau ntsuas. Cov txiaj ntsig tau taw qhia tias txoj kab - rau - kab tsis kam ua<1%, and the phase-to-phase resistance unbalance rate was <2%, which met the acceptance standards. This fully demonstrated the excellent quality of the winding material, reliable welding quality, and tight joint connections. In the Txheeb xyuas cov tub ntxhais thiab cov ncej rwb thaiv tsevSij hawm, txij li cov tub ntxhais thiab cov ncej hauv av ntawm cov hloov pauv tuaj yeem nkag tau tom qab cov kua tau sau tseg, pab pawg siv 2500 v dc voltage rau 1 feeb. Kev ntsuas rwb thaiv tsev tsis kam ntawm cov tub ntxhais thiab tank, nruab nrab ntawm clamp thiab nruab nrab ntawm cov loj dua los yog sib npaug nrog 500 mω, uas tsis muaj kev rhuav tshem. Qhov no tiv thaiv kev tiv thaiv hauv cheeb tsam muaj teeb meem los ntawm kev ua haujlwm tsis zoo.
Nyob rau hauv lub zog hluav taws xob kev ntsuam xyuas, tusSiv Voltage kuaj (AV)Kev Koom Tes Nrog Kev Thov 70 KV / 50 Hz Voltage rau HV sab thiab LV sab feem ntau rau 60 vib nas this. Tsis muaj kev poob qis hauv voltage thaum ntsuas, txheeb xyuas lub peev xwm ntawm cov kab kev ua kom qhuav rau cov av thiab lwm yam windings. Nyob rau hauvinducts voltage whaum mus kuaj (IVW), LV sab yog siv los ua qhov chaw sim. Ntawm qhov chaw tapping 9, qhov ntsuas hluav taws xob tau thov nrog kev induction ntau ntawm 2, ib zaus ntawm 150 Hz, thiab lub sijhawm ntawm 40 vib nas this. Tsis muaj voltage vau, ntsuas cov rwb thaiv tsev withbation withstic lub zog ntawm lub transformer lub rwb thaiv tsev ntev. TusKev ntsuas kev ua haujlwm ntawm - Pieter Tais Hloov Pearerstau muab faib ua peb theem: thaum transformer yog de - Enter Cycles tau ua tiav (los ntawm ib qho kawg ntawm cov kab txuas ntxiv mus rau lwm qhov thiab nraub qaum); Thaum lub transformer tau energized tsis muaj kev thauj khoom nrog ntsuas hluav taws xob thiab zaus, 1 lub voj voog tau ua tiav; Thaum ib qho cua daj cua dub- cirruited thiab rated tam sim no tau dhau los ntawm tapped winding kom ntau li ntau tau, 10 kap- hloov pauv kev ua tiav. Tus kais hloov pauv tsis muaj kev ua txhaum nyob rau hauv cov txheej txheem, nrog ruaj khov thiab txhim khu kev qha txhua yam kev ua haujlwm.
Tsis tas li ntawd, tusntsuas ntawm tsis muaj - phoo ntawv poob thiab tam sim noKev xeem tau ua nyob rau hauv 100% rated excagation voltage. Qhov ntsuas tsis muaj {{2} Kev ntim khoom tam sim no tau tsawg dua lossis sib npaug ntawm cov nqi uas tau teev tseg, thiab tsis muaj qhov muaj tsawg dua lossis sib npaug rau 15 kw. TusKev ntsuas ntawm luv - Circuit Court Impedance thiab Thauj Khoom PoobTau ua los ntawm kev thov voltage rau HV sab thiab luv {- puag ncig ntawm LV, nrog kev ntsuam xyuas thoob plaws txhua txoj haujlwm tapping. Lub sijhawm luv - Circuit Court cuam tshuam ntawm tus thawj xibfwb tapping (75%, thiab lub rooj sib tham tau lees tias muaj txiaj ntsig zoo nyob rau hauv kev pom zoo. TusRwb Thaiv Tsev Kev Ntsuam Xyuas Ntawm Auxiliary WiringKev koom tes ua ntawv thov cov kev ntsuas tshwj xeeb rau 60 vib nas this nrog tsis muaj kev tawm tsam hluav taws xob tam sim ntawd, kom ntseeg tau tias muaj kev nyab xeeb fais fab mov thiab tswj lub voj voog. TusSiab Nres Ntsuas (Tiav Tes Haujlwm)Tau nqa tawm raws li tus qauv ntawm "30 KPA saum toj qub kua siab" - lub siab ua kua tau thov rau tus neeg saib xyuas thiab tswj tau 24 teev. Kev tshuaj xyuas ib qho pom tsis muaj kev xau nyob txhua qhov chaw, kom tsis muaj kev pheej hmoo ntawm cov kua dej tsis muaj zog thaum lub sijhawm hloov pauv.
Thaum kawg ntawm kev lees txais, tus sawv cev los ntawm South African cov neeg tau hais qhia txog kev ua haujlwm thoob ntiaj teb thiab kev ua yeeb yam zoo tshaj plaws hauv kev ua haujlwm ntawm kev hloov pauv. " Tus tswj hwm kev tswj hwm zoo ntawm Scotech tau hais tseg: "Qhov kev lees paub yog qhov ua tau zoo rau peb cov qauv tsim khoom, muab cov khoom siv thoob ntiaj teb.
The successful acceptance of these two 20 (22) MVA 33/11kV power transformers not only strengthens the cooperative relationship between SCOTECH and the South African client but also demonstrates SCOTECH's technical strength in the R&D and manufacturing of liquid-immersed power transformers. Nyob rau yav tom ntej, Scotech yuav txuas ntxiv kom tob zuj zus kev tsim kho lub zog hauv ntiaj teb no thiab cov qauv zoo} {{{cov khoom lag luam zoo.
Xa kev nug