Raws li cov kws tshaj lij kev lag luam ntawm cov khoom siv hluav taws xob xa tawm thiab xa tawm, JINShanMEN TECHNOLOGY CO., LTD muaj kev paub dhau los hauv kev tshawb fawb, kev tsim khoom thiab kev saib xyuas ntawm transformers. Lub tuam txhab tsuas yog tsim cov roj immersed fais fab transformers, qhuav- hom fais fab transformers, roj immersed peb-dimensional coiled fais fab transformers, qhuav-hom peb-dimensional coiled fais fab transformers, mining explosion- pov thawj qhuav-hom transformers ib tug fais fab tuag{8} explosion, mining transformers, nyob rau hauv load peev xwm tswj fais fab transformers, locomotive qhuav- hom transformers, raws li zoo raws li prefabricated substations, modular substations, cua zog lub thawv hom substations, siab thiab tsawg voltage switchgear thiab lwm yam kis tau tus mob thiab faib khoom. Ntawm lawv, cov500kva 3 theem transformerthiab cov roj ntim cov tshuab hluav taws xob tau siv dav hauv kev lag luam thiab kev lag luam, thiab lawv txoj haujlwm ruaj khov yog qhov tseem ceeb rau kev nyab xeeb ntawm cov khoom siv hluav taws xob. Cov tub ntxhais hlau yog lub hauv paus tseem ceeb ntawm lub tshuab hloov pauv, thiab nws qhov kev ua txhaum yuav cuam tshuam ncaj qha rau kev ua haujlwm thiab kev pabcuam lub neej ntawm lub transformer. Kab lus no yuav nthuav dav cov kev sim thiab kev kho mob ntawm cov tub ntxhais transformer faults, tsom rau daim ntawv thov nyob rau hauv 500 kva 3 theem transformer thiab roj puv tis transformers.
I. Cov Kev Ntsuas Feem Ntau rau Transformer Core Faults
Lub hauv paus txhaum ntawm lub transformer feem ntau yog manifested raws li multi- taw tes grounding, uas yuav ua rau lub zos overheating ntawm cov tub ntxhais, ua rau kom lub zog noj, thiab txawm ua puas lub core rwb thaiv tsev nyob rau hauv mob hnyav, ua rau muaj kev ruaj ntseg ntawm lub transformer. Rau 500 kva 3 theem transformer thiab roj puv tis transformers, xaiv txoj kev kuaj kom raug sai sai nrhiav qhov txhaum thiab tsis txhob nthuav ntxiv qhov txhaum. Cov txheej txheem kev sim ntau yog raws li hauv qab no:
1. Clamp- ntawm Ammeter Method (Kev Ntsuas Online)
Rau cov transformers nrog cov tub ntxhais sab nraud, tshwj xeeb tshaj yog cov roj ntim cov khoom siv hluav taws xob thiab 500 kva 3 theem transformer, lub clamp- ntawm ammeter txoj kev tuaj yeem kuaj xyuas cov tub ntxhais ntau - taw tes hauv av txhaum yam tsis muaj lub zog tsis ua haujlwm. Nws raug nquahu kom ntsuas qhov tam sim no ntawm cov hmoov txhuas hauv av tsis tu ncua txhua xyoo. Feem ntau, qhov tam sim no yuav tsum qis dua 100 milliamps. Yog tias nws ntau dua qhov nqi no, kev saib xyuas ze yuav tsum tau ntxiv dag zog. Tom qab lub transformer tau muab tso rau hauv kev ua haujlwm, ntsuas qhov tsis kam ntawm cov xaim hauv av ob peb zaug tsis tu ncua raws li tus nqi pib. Yog hais tias tus nqi pib nws tus kheej yog loj, nws qhia tau hais tias nws yog tshwm sim los ntawm qhov loj to sib nqus flux ntawm lub transformer nws tus kheej. Yog tias qhov ntsuas qhov tseem ceeb hauv lub sijhawm tom qab tsis txawv ntau, nws tuaj yeem suav tias tsis muaj qhov cuam tshuam hauv av. Yog tias qhov tam sim no ntawm cov xaim hauv av yog ntau dua 1 ampere thiab nce ntau dua piv nrog tus nqi pib, nws yuav yog qhov qis - tsis kam grounding lossis hlau grounding txhaum, uas yuav tsum tau ua raws sijhawm kom tsis txhob cuam tshuam rau kev ua haujlwm ib txwm ntawm 500 kva 3 theem transformer lossis roj puv tis transformers.
2. Chromatographic Analysis Method (Live Oil Sampling)
Txoj kev no yog tshwj xeeb tshaj yog haum rau cov roj puv tis transformers thiab 500 kva 3 theem transformer nrog roj immersed qauv. Sampling yog ua rau kev tshuaj ntsuam chromatographic. Yog tias tag nrho cov hydrocarbon nce ntxiv, thiab methane thiab ethylene hauv cov pa roj yog cov khoom tseem ceeb, thaum carbon monoxide thiab carbon dioxide gas hloov me ntsis los yog qhov tseem ceeb tsis hloov pauv piv nrog yav dhau los, nws tuaj yeem txiav txim siab tias yog cov hlau liab qab overheating, uas tej zaum yuav tshwm sim los ntawm core multi- taw tes hauv av los yog rwb thaiv tsev puas ntawm core silicon steel ntawv, thiab ntxiv rau. Yog hais tias acetylene tshwm nyob rau hauv tag nrho cov hydrocarbons saum toj no, nws yuav yog ib tug tsis ruaj tsis khov core multi-point grounding uas tshwm tsis tu ncua. Qhov kev ua txhaum no tau muab zais thiab yooj yim tsis quav ntsej, yog li kev tshawb nrhiav roj chromatographic tseem ceeb heev rau kev saib xyuas txhua hnub ntawm cov roj ntim cov khoom siv hluav taws xob thiab 500 kva 3 theem transformer.
3. Txoj Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv (Power Failure Test)
Siv 2500-volt megohmmeter los ntsuas qhov tsis kam ntawm cov tub ntxhais hlau thiab lub plhaub. Yog hais tias cov rwb thaiv tsev tiv thaiv yog 200 megohms los yog ntau tshaj, nws qhia tau hais tias cov tub ntxhais rwb thaiv tsev yog zoo. Yog tias lub megohmmeter qhia tau hais tias cov tub ntxhais hlau txuas nrog lub plhaub, ib qho ohmmeter tuaj yeem siv los ntsuas qhov tsis kam ntawm cov tub ntxhais hlau thiab lub plhaub. Rau 500 kva 3 theem transformer thiab roj puv tis transformers, yog hais tias tus nqi ntsuas yog 200 ~ 400 ohms, nws qhia tau hais tias muaj ib tug siab -tsis kam grounding point nyob rau hauv cov tub ntxhais hlau, thiab transformer core multi-point grounding txhaum yuav tsum tau ua.
Yog tias tus nqi ntsuas ntau dua 1000 ohms, qhov tam sim no ntws los ntawm cov xaim hauv av me me, thiab nws nyuaj rau kev tshem tawm qhov txhaum. Nws tuaj yeem raug tso tseg tsis kho thiab ua haujlwm txuas ntxiv, thiab kev saib xyuas online tsis tu ncua tuaj yeem ua tiav, xws li clamp- ntawm ammeter txoj kev (rau cov uas muaj cov tseem ceeb sab nraud) thiab roj chromatographic tsom xam txoj kev. Yog tias pom muaj qhov txawv txav, nws tuaj yeem kho tau raws sijhawm. Yog tias qhov ntsuas tus nqi yog 1-2 ohms, nws raug txiav txim tias muaj cov hlau hauv av hauv cov tub ntxhais hlau, thiab lub tshuab hloov pauv yuav tsum tau ua tam sim ntawd txhawm rau tiv thaiv qhov kev ua txhaum ntawm kev nthuav dav thiab ua rau poob ntau dua, tshwj xeeb tshaj yog rau 500 kva 3 theem transformer thiab cov roj ntim cov khoom xa tawm uas nyob rau hauv lub sijhawm ntev ntawm kev ua haujlwm hnyav.
II. Txoj kev kho rau Transformer Core Multi-point Grounding
Thaum multi- taw tes grounding tshwm sim nyob rau hauv lub transformer core, kev kho kom zoo yuav tsum tau ua raws li qhov ua rau ntawm qhov txhaum thiab qhov tseeb ua hauj lwm ntawm lub transformer. Rau 500 kva 3 theem transformer thiab roj puv tis transformers, cov kev kho mob nram qab no tuaj yeem raug coj los ua kom lub zog rov qab sai thiab txo qhov cuam tshuam ntawm cov khoom siv hluav taws xob:
1. Series Resistor hauv Grounding Circuit Court
Rau transformers nrog lwm cov tub ntxhais grounding nyob ntawm tej, xws li ib co 500 kva 3 theem transformer thiabroj filling tshuab transformers, ib tug resistor tuaj yeem txuas nrog hauv series hauv cov tub ntxhais hauv av Circuit Court kom txwv cov tub ntxhais hauv av tam sim no. Nws yuav tsum raug sau tseg tias txoj kev no tsuas yog siv tau los ua kev ntsuas kub ntxhov xwb, thiab lub hauv paus ua rau qhov ua txhaum yuav tsum raug pom thiab tshem tawm hauv lub sijhawm tom qab kev kho mob xwm txheej ceev kom ntseeg tau tias lub sijhawm ntev - lub sijhawm ua haujlwm ruaj khov ntawm transformer.
2. Tank Lifting Inspection rau hlau txawv teb chaws lub cev
Yog hais tias qhov tseem ceeb hauv av txhaum yog tshwm sim los ntawm cov hlau txawv teb chaws lub cev, feem ntau, qhov teeb meem tuaj yeem pom los ntawm kev nqa lub tank rau kev tshuaj xyuas. Txoj kev no siv tau rau cov roj ntim cov khoom siv hluav taws xob thiab 500 kva 3 theem transformer. Thaum lub sij hawm soj ntsuam, qhov chaw sab hauv ntawm lub transformer yuav tsum tau ua tib zoo xyuas kom tshem tawm cov hlau txawv teb chaws lub cev uas ua rau lub hauv paus, thiab cov rwb thaiv tsev ntawm cov tub ntxhais yuav tsum tau soj ntsuam nyob rau tib lub sij hawm kom tsis txhob muaj lwm yam faults.
3. Kev kho cov txheej txheem rau kev ua txhaum hauv av tshwm sim los ntawm Burrs thiab hlau hmoov sib sau
Rau cov kev ua txhaum hauv av tshwm sim los ntawm cov tub ntxhais burrs thiab hlau hmoov tsub zuj zuj, cov hauv qab no muaj cov teebmeem kev kho mob pom tseeb, tshwj xeeb tshaj yog rau 500 kva 3 theem transformer thiab roj puv tis transformers, uas tuaj yeem tshem tawm qhov txhaum yam tsis muaj kev puas tsuaj rau cov qauv tseem ceeb:
1) Capacitor Discharge Impact Method;
2) AC Txoj Kev Arc;
3) Txoj kev cuam tshuam tam sim no, uas yog, siv lub tshuab hluav taws xob vuam.
III. Xaus
Cov tub ntxhais yog qhov tseem ceeb ntawm kev ua haujlwm ruaj khov ntawm transformer. Kev soj ntsuam raws sij hawm thiab kev kho mob ntawm cov tub ntxhais faults yog qhov tseem ceeb heev los txuas ntxiv lub neej kev pab cuam ntawm lub transformer thiab xyuas kom muaj kev ruaj ntseg ntawm lub hwj chim mov. Rau 500 kva 3 theem transformer thiab roj puv tis transformers, uas yog dav siv nyob rau hauv ntau yam teb, mastering cov saum toj no kev ntsuam xyuas thiab kev kho mob txoj kev yuav txo tau qhov tsis ua hauj lwm tus nqi thiab txhim kho kev ua hauj lwm efficiency.JINSHANMEN TECHNOLOGY CO., LTDtau cog lus tias yuav muab siab tshaj - transformers zoo thiab kev txhawb nqa kev tshaj lij. Yog tias koj muaj lus nug txog kev saib xyuas ntawm 500 kva 3 theem transformer, roj puv tis transformers thiab lwm yam transformers, koj tuaj yeem tiv tauj peb txhua lub sijhawm.