Cov ntaub ntawv no muab ib qho kev soj ntsuam hauv - qhov tob ntawm kev tsim kho cov txheej txheem rau hluav taws xob engineering hauv substations, sib txuas cov ntaub ntawv tshawb fawb kom ntxaws txog xyacov kauj ruam tseem ceeb: Cov khoom siv Installation, Busbar Installation, Vaj Huam Sib Luag thiab Txee Layout, Grounding Device Construction, Cable Laying, Fireproof Sealing Measures, thiab Secondary Circuit Wiring. Cov kauj ruam no yog qhov tseem ceeb rau kev ua kom zoo tag nrho ntawm qhov project substation.
1. Cov khoom siv installation
Hauv substation hluav taws xob engineering kev tsim kho,cov khoom siv installation yog thawj zaug thiab cov kauj ruam tseem ceebntawm kev tsim kho substation. Nws suav nrog ntau yam kev xav tau, suav nrog seb cov khoom siv nws tus kheej puas ua raws li cov lus qhia tshwj xeeb thiab cov chaw tsim khoom, txawm tias cov khoom txav tuaj yeem ua haujlwm tau yooj yim thiab raug, thiab kev ntseeg siab ntawm cov khoom siv hluav taws xob thiab kev sib tshuam. Ib txhij, nws yog ib qho tseem ceeb kom ntseeg tau tias tag nrho cov khoom sib khi muaj kev sib khi zoo, cov khoom siv plooj (porcelain) tsis muaj kev puas tsuaj thiab tawg, thiab cov khoom siv sab nrauv tseem nyob ruaj khov thiab tsis muaj paug.
Tsis tas li ntawd, kev saib xyuas tshwj xeeb yog xav tau rau kev sib txuas ntawm kev sib txuas ntawm cov hluav taws xob hluav taws xob thiab lawv cov txheej txheem kev khiav hauj lwm kom tsis txhob muaj teeb meem tshwm sim, nrog cov lus qhia meej thiab meej rau kev qhib thiab kaw, thiab txhim khu kev qha thiab kev ua haujlwm ntawm cov pab cuam hloov. Lub caij no, lub tswb thiab kaw qhov chaw ntawm qhov ntom ntom relays yuav tsum ua raws li cov kev cai cuam tshuam, thiab kev ua haujlwm ntawm cov hluav taws xob hluav taws xob yuav tsum tau txheeb xyuas qhov tseeb. Tsis tas li ntawd, cov kev txwv xws li lub siab, qhov dej xau, thiab cov ntsiab lus noo ntawm SF6 roj yog cov cim tseem ceeb uas xav tau kev tswj xyuas nruj thaum lub sij hawm cov txheej txheem installation.
Txhawm rau ua tiav lub hom phiaj ntawm kev xav kom tsis txhob muaj kev hloov kho shims thaum lub sijhawm teeb tsa, lub luag haujlwm tseem ceeb yog los xyuas kom meej qhov tseeb ntawm kev tsim vaj tsev engineering, ua kom qhov siab yuam kev ntawm lub hauv paus embedded qhov chaw nyob rau hauv qhov tso cai ntau yam teev los ntawm cov qauv tsim. Ntxiv mus, thaum lub sij hawm xaiv cov khoom siv, qhov tseem ceeb yuav tsum tau muab rau cov khoom siv nrog kev hloov kho lub cev kom yooj yim rau kev hloov pauv ntawm - qhov chaw hloov kho.
2. Kev teeb tsa Busbar
Tom qab kev teeb tsa ntawm kev txhawb nqa Circuit Court breaker, cov kauj ruam tseem ceeb tom ntej yog kev teeb tsa busbar.Busbar installation muaj xws li hloov tau busbars thiab tubular busbars. Cov kauj ruam no zoo ib yam yuav tsum tau ua haujlwm zoo thiab ua raws li cov lus qhia tshwj xeeb kom ntseeg tau tias kev ua haujlwm ib txwm muaj ntawm lub zog hluav taws xob thiab kev nyab xeeb thiab ruaj khov ntawm cov khoom siv.
2.1 Cov Ntsiab Lus Tseem Ceeb rau Kev Txhim Kho Busbar Yooj Yim
Xyuas kom tus neeg xyuas pib cov xov hlau tsis muaj qhov xoob, cov hlua tawg, lossis puas, thiab tshawb xyuas cov dents lossis deformations hauv qhov nthuav dav - txoj kab uas hla. Nyob nruab nrab ntawm cov khoom siv, cov khoom siv tau yooj yim yuav tsum khoov kom zoo thiab ua kom zoo, nrog rau qhov curvature thiab kev sib haum xeeb. Tsis tas li ntawd, lub sag ntawm kev sib txuas ntawm busbar hloov mus rau cov khoom siv yuav tsum zoo ib yam, nrog qhov tsim nyog nruj thiab tag nrho kev zoo nkauj. Lub layout ntawm jumpers yuav tsum du, thiab sag ntawm peb -theem jumpers yuav tsum sib npaug.
2.2 Txheej txheem cej luam ntawm Cov Ntsiab Lus Tseem Ceeb rau Kev Txhim Kho Tubular Busbar
Peb -theem busbar raj ntu yuav tsum tswj cov axes sib npaug thiab qhov siab tsis sib xws, thaum lub deflection yuav tsum nruj me ntsis raws li kev tsim thiab kev qhia tshwj xeeb. Cov tsos mob yuav tsum tau du thiab huv si, vuam cov txheej txheem yuav tsum zoo heev, kom ntseeg tau tias weld seams tsawg kawg yog 50 hli ntawm cov npoo ntawm kev txhawb nqa. Tsis tas li ntawd, cov cim xim theem yuav tsum ua kom tiav thiab raug.
3. Kev teeb tsa vaj huam sib luag thiab txee
Thaum lub sij hawm lub vaj huam sib luag thiab txee installation, nruj me ntsis raws li kev cai yuav tsum tau.Vaj huam sib luag thiab txee installation qhia txog cov vaj huam sib luag tiaj tus, ruaj ntseg fastening, meej naming / qhia, thiab txhim khu kev qha hauv av sib txuas. Qhov no suav nrog qhov chaw tiaj tus ntawm kev tswj hwm, kev tiv thaiv, automation, thiab DC panels teem rau hauv kab; Qhov kev ua yuam kev flatness ntawm ob lub vaj huam sib luag uas nyob ib sab yuav tsum tau tswj tsis pub dhau 1.5 hli, thiab bolts yuav tsum tau siv rau kev ruaj ntseg fastening. Ntxiv mus, ob qho tib si pem hauv ntej thiab sab nraum qab ntawm cov vaj huam sib luag thiab cov txee yuav tsum qhia meej cov npe / tus lej cim. Cheebtsam hauv cov vaj huam sib luag thiab cov txee (nrog rau lub thawv davhlau ya nyob twg thiab cov khoom hauv zos) yuav tsum muaj cov ntawv ua tiav thiab txheeb xyuas tau yooj yim. Tsis tas li ntawd, lub vaj huam sib luag / txee lub cev yuav tsum muaj kev ntseeg siab txuas nrog lub ntiaj teb hauv av kom muaj kev nyab xeeb. Rau cov qhov rooj uas tuaj yeem qhib tau, yuav tsum tau siv cov hlua tooj liab hloov tau yooj yim rau kev sib txuas hauv av.
4. Kev tsim khoom siv hauv av
Thaum lub sij hawm tsim kho cov cuab yeej siv hauv av, nws yog qhov tseem ceeb rauua raws li nruj vuam thiab cim cov cailos xyuas kom meej qhov faus qhov tob ntawm lub cev hauv av, lap lengths ua raws li cov cai, thiab zam kev nyab xeeb.
4.1 Kev faus thiab vuam ntawm cov av hauv av
Qhov faus qhov tob ntawm cov av hauv av yuav tsum ua raws li cov qauv tsim. Yog tias tsis tau teev tseg, nws yuav tsum tsis pub tsawg dua 0.6 meters. Steel grounding lub cev yuav tsum tau koom nrog siv lap welding, kom ntseeg tau tias ob lub ceg ntev thiab vuam txoj kev raws li txoj cai. Tom qab vuam, tiv thaiv- kev kho corrosion yuav tsum tau siv tam sim ntawd, tshwj xeeb tshaj yog txiav cov ntu ntawm cov hlau thiab cov chaw uas cov txheej txheej galvanized puas thaum vuam ntawm cov hlau galvanized.
4.2 Standardized Vuam ntawm Grounding Bodies
Lap vuam yog qhov zoo dua rau vuam hauv av lub cev (tus neeg coj), thiab lub ceg ntev yuav tsum ua raws li cov hauv qab no:
Rau cov hlau tiaj tus, lub ceg ntev yog ob npaug ntawm nws qhov dav (thiab tsawg kawg peb npoo yuav tsum tau welded).
Rau cov hlau puag ncig, lub ceg ntev yog rau npaug ntawm nws txoj kab uas hla.
Thaum txuas cov hlau puag ncig rau cov hlau tiaj tus, lub ceg ntev yog rau lub sijhawm ntawm txoj kab uas hla ntawm cov hlau puag ncig.
Nyob rau hauv welding ca steel rau cov kav hlau los yog cov hlau tiaj tus rau lub kaum sab xis steel, kom ntseeg tau tias kev sib txuas ntawm ob sab ntawm qhov chaw sib cuag, ib qho ntxiv nkhaus (los yog txoj cai -angled) clamp ua los ntawm steel sawb yuav tsum tau ntxiv, los yog cov hlau sawb nws tus kheej tuaj yeem khoov rau hauv nkhaus (los yog lub kaum sab xis) thiab welded rau cov yeeb nkab steel (los yog lub kaum sab xis).
4.3 Kev Txuas Hluav Taws Xob Hluav Taws Xob thiab Cov Hluav Taws Xob
Thaum lub sij hawm installation ntawm grounding pab kiag li lawm, kev xaiv ntawm kev sib txuas txoj kev ntawm xob laim rods (Strips) thiab down conductors yog ib qho tseem ceeb heev. Txhawm rau kom muaj kev nyab xeeb thiab ruaj khov ntawm kev sib txuas, vuam lossis thermite (exothermic) vuam yuav tsum tau siv.
Hauv kev xyaum, nws tau pom tias qee qhov kev teeb tsa ntawm cov hlua hluav taws xob ywj pheej tsis ua raws li qhov yuav tsum tau ua, ua rau muaj kev sib txuas rau cov neeg siv hluav taws xob tsis siv vuam. Qhov kev coj ua no yuav cuam tshuam rau kev ua haujlwm tag nrho thiab kev nyab xeeb ntawm cov khoom siv hauv av. Yog li ntawd, nws yog ib qho tseem ceeb los xyuas kom meej qhov tseeb welding txoj kev raug xaiv thiab lap lengths yog nruj me ntsis tswj raws li cov cai yuav tsum tau lav lub grounding ntaus ntawv ua hauj lwm stably thiab zoo.