Tus neeg ua haujlwm substation hauv Saudi Arabia hu rau lub lim tiam dhau los. Lawv muaj 132kV disconnect hloov uas yuav tsis budge. Tus kov txav mus txog ib nrab ntawm txoj kev, ces kaw. Lawv yuav tsum tau cais lub feeder rau kev saib xyuas, thiab qhov hloov pauv yuav tsis koom tes. Tag nrho cov haujlwm tau tuav.
Qhov no tshwm sim ntau dua li cov neeg xav tau. High-voltage disconnect keyboards yog cov khoom siv yooj yim- tsis muaj kev cuam tshuam arc, tsuas yog pom kev tawg hauv Circuit Court. Tab sis lawv nyob sab nraud, raug tshav ntuj, xuab zeb, nag, thiab kub hloov pauv. Thaum lub sij hawm, lawv tsim teeb meem. Thiab thaum lawv lo, tag nrho cov substation tuaj yeem tsoo kom nres.
Xeb thiab roj qhuav yog qhov ua txhaum loj tshaj plaws. Feem ntau sab nraum zoov disconnect keyboards siv cov kab rov tav tawg tsim qhov chaw txav ntawm cov bearings thiab pivot cov ntsiab lus uas xav tau lubrication. Tom qab xyoo tsis muaj kev saib xyuas, cov roj dries, bearings xeb, thiab cov ncej seizes. Peb pom qhov no ntawm ib qhov chaw hauv Oman qhov twg qhov kev hloov pauv hloov tau nruab rau xyoo 1998 muaj nws cov roj qub dhau los ua ib yam dab tsi zoo li tswm ciab ciab. Tus neeg teb xov tooj yuav tsum tau siv lub tshuab cheater kom yuam nws. Thaum lawv hu peb, cov ncej tau twisted me ntsis thiab cov kev sib cuag tsis sib haum lawm. Kev kho yog ncaj nraim tab sis lub sij hawm-siv: disassemble, ntxuav tawm cov roj qub, xuab zeb tawm xeb, siv cov roj lithium tshiab- raws li roj, thiab rov ua dua. Yog hais tias cov bearings yog pitted, lawv yuav tsum tau hloov. Qee cov tuam txhab tam sim no pom zoo rau cov hlau tsis muaj hlau nrog cov hlau tsis muaj hlau tsis yog tooj dag lossis plated hlau, uas tshem tawm cov xeb tag nrho. Kev tiv thaiv kev saib xyuas ib xyoos ib zaug- tsuas yog qhib thiab kaw qhov hloov pauv ob peb zaug- tuaj yeem ua rau qhov no tsis dhau los ua txoj haujlwm tseem ceeb. Rau kev tshem tawm cov hloov pauv hauv cov chaw ntug dej hiav txwv uas cov huab cua ntsev nrawm nrawm dua, kev tshuaj xyuas ntau zaus raug pom zoo.
Lwm qhov teeb meem tshwm sim yog qhov kev sib txuas ntawm interphase tau khoov lossis misaligned. Nyob nruab nrab ntawm qhov kev khiav hauj lwm thiab qhov hloov ntawm nws tus kheej, feem ntau yog cov yeeb nkab ntev los yog lub raj txuas nrog peb tus ncej kom lawv txhua tus txav mus ua ke. Yog tias ib yam dab tsi cuam tshuam rau cov yeeb nkab- lub tsheb thauj khoom rov qab mus rau hauv lub chaw nres tsheb, cov ceg ntoo ntog, cov dej khov khov kho- nws tuaj yeem khoov. Thaum khoov, lub geometry raug kaw, thiab qhov hloov pauv yuav kaw tsis sib npaug lossis ib theem yuav tsis koom nrog. Nyob rau hauv ib rooj plaub nyob rau Malaysia, lub disconnect hloov mechanism tau ua hauj lwm zoo rau xyoo, ces mam li nco dheev yuav tsis kaw tag nrho txoj kev. Cov neeg ua haujlwm tsis tuaj yeem paub txog nws kom txog thaum peb hais kom lawv tshawb xyuas cov yeeb nkab txuas. Ib tug neeg tau tsa tus ntaiv tawm tsam nws thaum lub sijhawm saib xyuas yav dhau los, thiab cov yeeb nkab tau khoov los ntawm tsawg dua ib nti. Straightening nws kho qhov teeb meem. Yog tias qhov kev sib txuas tsis ncaj, qhov hloov pauv hloov pauv yuav tsis ua haujlwm zoo, yog li kev txheeb xyuas kev sib raug zoo yuav tsum yog ib feem ntawm txhua qhov kev tshuaj xyuas. Rau disconnect keyboards nyob rau hauv industrial cov nroj tsuag uas cov cuab yeej txav tau ntau, kev tiv thaiv lub cev nyob ib ncig ntawm kev sib txuas yog tsim nyog xav txog.
Corrosion hauv lub thawv davhlau ya nyob twg tuaj yeem ua rau tsis ua haujlwm. Ntau lub cev muaj zog- cov kev hloov pauv tau ua haujlwm muaj lub thawv me me ntawm lub hauv paus ntawm cov txheej txheem kev khiav haujlwm uas muaj cov kev txwv hloov pauv, xaim, thiab qee zaum lub cev muaj zog. Cov dej noo nkag mus los ntawm cov ntsaws ruaj ruaj los yog cov khoom siv uas tsis muaj, cov terminals corrode, txwv cov keyboards tsis ua haujlwm, thiab lub cev muaj zog yuav tsis khiav. Qhov no yog qhov ua tsis tau zoo uas tus neeg teb xov tooj thawb lub pob, hnov tsis muaj dab tsi, thiab xav tias qhov hloov pauv tau daig thaum qhov tseeb ntawm hluav taws xob tswj Circuit Court tuag. Txoj kev kho yog qhib lub thawv, huv si corrosion, hloov cov khoom puas, thiab rov muab lub kaw lus. Ntxiv lub rhaub me me rau hauv lub thawv-ib txwm nyob hauv huab cua txias lossis huab cua sov- pab kom tsis txhob ya raws ntev ntev -. Txhawm rau tshem tawm cov hloov pauv hauv qhov chaw siab - av noo ib puag ncig zoo li Southeast Asia, qhov no yog qhov chaw tu ncua.
Kev sib cuag welding lossis deterioration yog tsawg dua tab sis tshwm sim. Yog hais tias lub disconnect hloov yog ua nyob rau hauv load- uas nws yuav tsum tsis txhob yog - cov neeg tuaj yeem weld ua ke. Ntau zaus, xyoo ntawm arcing thaum lub sij hawm qhib ib txwm maj mam erodes cov nyiaj plating ntawm cov neeg sib cuag. Thaum cov nyiaj ploj mus, lub hauv paus tooj liab oxidizes, tsis kam nce, kub tsim, thiab lub voj voog nrawm kom txog thaum cov neeg sib cuag. Ib qho kev siv hluav taws xob hauv Thaib teb tau muaj qhov no ntawm 33kV kev hloov pauv uas tau ua haujlwm rau 18 xyoo. Kev tshuaj xyuas pom tias qhov chaw sib cuag tau pitted thiab tsaus, thiab tus neeg teb xov tooj tau tshaj tawm tias nws xav tias "gritty" thaum tsiv. Hloov tsuas yog qhov siab -voltage switch contact changekit-tsis yog tag nrho cov hloov pauv- daws nws. Lawv swapped tawm lub hnav disconnect hloov kev sib cuag los ua ke nrog ib tug ncaj qha hloov kev tiv tauj teeb, thiab tus hloov ua hauj lwm smoothly dua. Kev hloov kev sib cuag yuav siv sij hawm ob peb teev thiab raug nqi ib feem ntawm qhov hloov tshiab. Tus yuam sij yog ntes nws ua ntej cov neeg sib cuag hnav los ntawm tag nrho. Rau qhov tseem ceeb substation disconnect keyboards, tsis tu ncua kev soj ntsuam thermographic tuaj yeem ntes cov kub kub ua ntej kev sib cuag tsis tau.
Nyob rau hauv qhov chaw uas qhov kub thiab txias poob qis dua, cov dej khov ua rau ntawm qhov kev sib txuas ntawm cov hniav thiab cov khoom siv hluav taws xob tuaj yeem ua rau qhov hloov pauv xav tias daig, tab sis qhov teeb meem yog txhua yam - dej khov thaiv kev txav. Qee cov khoom siv hluav taws xob nruab cua sov nyob ib ncig ntawm qhov tseem ceeb txav. Lwm tus teem sijhawm ua haujlwm thaum lub sijhawm sov so thaum dej khov tau yaj. Hauv qhov xwm txheej hnyav, lawv hloov cov hloov pauv qub nrog cov dej khov- tiv taus cov qauv uas muaj qhov sib txawv loj dua thiab sib txawv ntawm cov duab sib txuas. Txhawm rau tshem tawm cov hloov pauv hauv huab cua txias, xaiv cov chav nyob nrog cov ntaub thaiv cua sov lossis tus kheej - cov txheej txheem ntxuav tuaj yeem tiv thaiv dej khov - cuam tshuam txog kev ua tsis tiav.
Yog tias koj tab tom sawv ntawm qhov hloov pauv uas yuav tsis txav, ntawm no yog qhov yuav tsum tau kuaj xyuas. Sim tus tuav tes ua ntej. Yog tias nws yog lub cev muaj zog- ua haujlwm, hloov mus rau hom phau ntawv. Yog tias phau ntawv tuav txav tau yooj yim tab sis lub cev muaj zog tsis ua haujlwm, qhov teeb meem yog hluav taws xob -kos lub thawv davhlau ya nyob twg. Xav txog kev tiv thaiv. Yog hais tias tus kov txav ib nrab ces nres, ib yam dab tsi thaiv txoj kev. Saib cov yeeb nkab txuas rau khoov thiab xyuas cov txheej txheem rau cov khib nyiab. Mloog: cov suab sib tsoo feem ntau txhais tau tias cov kabmob qhuav lossis cov hniav tawg, thaum squeaking txhais tau tias tsis muaj lubrication. Saib ntawm cov neeg sib cuag-yog tias qhov hloov pauv tau qhib lossis kaw, koj puas pom muaj dab tsi cuam tshuam ntawm lawv? Puas muaj qhov pom xeb ntawm cov ntsiab lus pivot? Thiab xyuas hnub ntawm kev kho zaum kawg. Yog hais tias nws tau ntau tshaj ib xyoos txij li thaum leej twg lubricated no hloov, qhov ntawd yog qhov teeb meem. Rau kev laus disconnect hloov kev teeb tsa qhov chaw saib xyuas cov ntaub ntawv tsis pom, kev tshuaj xyuas tag nrho cov tshuab feem ntau yog qhov pib zoo tshaj plaws.
Feem ntau daig disconnect keyboards tuaj yeem kho. Ntxuav cov roj qub, hloov cov neeg hnav, kho qhov sib txuas ncaj nraim -cov no yog cov haujlwm saib xyuas tus qauv txhua tus neeg ua haujlwm tsim nyog tuaj yeem ua haujlwm. Tab sis qee zaum kev hloov pauv yog qhov kev xaiv zoo dua. Yog tias qhov hloov pauv tau raug yuam ntau zaus thiab tus ncej yog khoov, kev hloov pauv yooj yim dua li sim ua kom nws ncaj. Yog tias cov nyiaj plating tag lawm thiab lub hauv paus hlau yog pitted, kev sib cuag tshiab yuav pab tau, tab sis cov txheej txheem tseem tuaj yeem hnav. Thiab yog tias cov chaw tsim khoom tsis txhawb nqa tus qauv ntxiv lawm -ntau nrog ABB, Siemens, thiab Cooper cov cuab yeej los ntawm 1980s thiab 1990s-nrhiav qhov chaw yuav muaj teeb meem. Nyob rau hauv cov ntaub ntawv no, ib tug ncaj hloov hloov uas sib xws rau qhov uas twb muaj lawm mounting qhov ntev thiab lub davhlau ya nyob twg txoj hauj lwm yog feem ntau tus nqi - zoo. Koj khaws tib lub hauv paus, tib lub tsheb npav sib txuas, thiab siv nyiaj tsawg dua li qhov koj xav rov tsim kho dua 30- xyoo-laus mechanism. Rau substation disconnect hloov retrofits, qhov no txoj kev txo qis downtime thiab zam kev ua haujlwm hauv paus.
Yog hais tias koj muaj ib tug disconnect hloov uas yog sticking, los yog koj tsis paub meej yuav kho los yog hloov, xa cov duab ntawm lub nameplate thiab mechanism. Peb tau ua haujlwm nrog cov hloov pauv no tau ntau xyoo- ntawm cov chaw nres tsheb, hnub ci ua liaj ua teb, cov chaw tsim khoom lag luam thoob plaws Middle East thiab Southeast Asia. Peb tuaj yeem qhia koj tias qhov tsis raug thiab nws yuav siv li cas los kho nws.