Qhov thib ob Circuit Court yog "tswj thiab saib xyuas" ntawm switchgear-txawm nws yog qhov compactrm6 uanplhaib network txee, hnyav-lub luag haujlwm1600 amp switchgear, los yog siab - muaj peev xwm2500 amp switchgear. Nws tuav cov teeb liab kis tau tus mob, kev tswj xyuas kev ua haujlwm thiab kev tiv thaiv kev ua haujlwm. Cov teeb meem tshwm sim xws li kev ua haujlwm tsis zoo, qhov ntsuas tsis raug lossis tsis ua haujlwm feem ntau yog los ntawm cov khoom siv thib ob, cuam tshuam rau cov khoom siv xws li rm6 txog 2500 amp switchgear. Multimeter yog qhov yooj yim tshaj plaws thiab muaj txiaj ntsig zoo rau kev kho cov teeb meem no. Kab lus no qhia cov kev txawj multimeter yooj yooj yim thiab cov kauj ruam-los ntawm- kauj ruam yuam kev- nrhiav txoj hauv kev, pab rau - cov neeg ua haujlwm tu vaj tse daws teeb meem sai.
Kev npaj yooj yim ua ntej kev daws teeb meem
1. Kev nyab xeeb ua ntej
Tua lub zog hluav taws xob thib ob ua ntej thiab siv tus cwj mem ntsuas kom paub meej tias tsis muaj qhov hluav taws xob- txoj cai no siv tau rau txhua hom kev hloov pauv, suav nrog rm6, 1600 amp switchgear thiab 2500 amp switchgear. Hnav cov hnab looj tes insulating thiab tsis txhob kov qhov chaw nyob thaum ua haujlwm. Khaws thaj chaw huv si kom tiv thaiv cov cuab yeej los ntawm kev poob rau hauv lub switchgear.
2. Kev npaj Multimeter
Xaiv ib qho digital multimeter nrog AC / DC voltage, kev ua haujlwm thiab kev ua haujlwm txuas ntxiv (feem ntau cov qauv ua haujlwm rau rm6, 1600 amp switchgear thiab lwm yam). Xyuas kom paub tseeb tias lub roj teeb puv thiab cov khoom siv kuaj tsis zoo. Teem lub multimeter mus rau sab xis iav ua ntej siv (piv txwv li, qhov ntsuas hluav taws xob rau ntsuas qhov hluav taws xob, cov iav tiv thaiv rau kev kuaj xyuas circuits).
Ntsiab Multimeter Siv Kev Txawj Ntse rau Secondary Circuits
1. Kev ntsuas hluav taws xob (feem ntau yog siv rau kev kuaj xyuas lub teeb liab)
AC voltage(piv txwv li, tswj fais fab 220V / 110V): Teem rau "ACV" iav (feem ntau yog 500V ntau). Txuas liab thiab dub xeem ua rau ob qhov kawg ntawm qhov taw tes ntsuas. Yog tias cov zaub nyob ze rau qhov ntsuas hluav taws xob, lub zog hluav taws xob yog qhov qub - tseem ceeb rau kev ua haujlwm ruaj khov ntawm 1600 amp switchgear thiab 2500 amp switchgear. Yog tias nws yog 0 lossis qis dua, muaj lub zog tsis ua haujlwm lossis kev sib cuag tsis zoo.
DC voltage(piv txwv li, relay coil voltage): Teem rau "DCV" iav. Nco ntsoov qhov zoo thiab qhov tsis zoo (liab rau qhov zoo, dub rau qhov tsis zoo). Cov zaub yuav tsum phim lub coil qhov ntsuas voltage. Yog tias tsis yog, Circuit Court tej zaum yuav raug txiav lossis luv luv -circuited, uas tuaj yeem ua rau lub cev tsis ua haujlwm hauv rm6 thiab lwm yam hloov pauv.
2. Kev Ntsuas Txuas Txuas (Kuaj rau qhib Circuit Court)
Teem lub multimeter mus rau "txuas ntxiv" iav (cim nrog lub suab icon). Txuas ob qhov kev xeem coj mus rau ob qhov kawg ntawm lub voj voog lossis cov khoom siv (xws li, cov xov hlau, cov xov tooj sib txuas, fuses). Yog hais tias lub multimeter beeps tsis yog - nres, lub Circuit Court yog meej. Yog tias tsis muaj suab nrov, Circuit Court puas lawm - xyuas cov xov hlau puas lossis cov kev sib txuas xoob, ib qho teeb meem tshwm sim hauv ob qho tib si 2500 amp switchgear thiab me rm6 units.
3. Kev ntsuas kev tiv thaiv (Kuaj xyuas qhov luv luv lossis kev sib cuag tsis zoo)
Teem mus rau "Ω" iav (xaiv qhov tsim nyog, piv txwv li, 200Ω rau cov khoom me me).Disconnect fais fab ua ntej ntsuas(lwm yam, lub multimeter yuav tawg). Rau cov xov hlau qub lossis kev sib cuag, kev tiv thaiv yuav tsum nyob ze rau 0Ω. Tus nqi loj (piv txwv li, pua pua ntawm Ω) txhais tau tias kev sib cuag tsis zoo los ntawm oxidation los yog xoob-tshwj xeeb tshaj yog txaus ntshai rau siab -load 1600 amp switchgear. Rau cov khoom xws li resistors los yog coils, piv cov nqi ntsuas nrog tus nqi ntsuas. Siab dhau los yog qis dhau txhais tau hais tias cov khoom tsis raug.
Kauj ruam -los ntawm - Kauj ruam Fault Location
Kauj ruam 1: Paub meej qhov txhaum
Ua ntej, nco ntsoov cov teeb meem tshwj xeeb: piv txwv li,rm6 uayuav tsis kaw, 1600 amp switchgear qhia lub teeb tawm, 2500 amp switchgear relay tsis ua hauj lwm, los yog kev tiv thaiv ntaus ntawv malfunction. Qhov no txo qis qhov kev tshawb nrhiav.
Kauj Ruam 2: Tshawb xyuas Cov Khoom Siv Hluav Taws Xob nrog Kev Ntsuas Voltage
Siv lub multimeter los ntsuas lub zog tswj theem nrab (AC 220V / 110V lossis DC 24V / 110V). Tsis muaj hluav taws xob? Tshawb xyuas lub fuse, cua hloov pauv thiab lub zog hluav taws xob input davhlau ya nyob twg. Qhov teeb meem tshwm sim: fuse tshuab los ntawm luv luv Circuit Court (hloov tom qab kho qhov luv luv Circuit Court)- kho uas ua haujlwm rau txhua qhov hloov pauv, txij li rm6 txog 2500 amp switchgear.
Kauj Ruam 3: Tshawb xyuas cov xov hlau thiab cov khoom txuas nrog kev sim txuas ntxiv
Cov kab hluav taws xob thib ob yog nyias thiab yooj yim tawg lossis muaj cov terminals xoob. Tsom ntsoov rau cov xov hlau txuas nrog cov nyees khawm, relays, contactors thiab cov khoom tiv thaiv- qhov tseem ceeb hauv 1600 amp switchgear thiab 2500 amp switchgear. Siv cov iav txuas ntxiv los ntsuas ntu ntawm ntu. Tsis muaj suab? Tshawb xyuas cov xov hlau tawg, xoob screws lossis oxidized hu. Txhim kho: Tighten screws, ntxuav cov oxidized hu los yog hloov cov hlau tawg.
Kauj Ruam 4: Tshawb xyuas cov ntsiab lus tseem ceeb nrog Kev Ntsuas Kev Ntsuas
Cov khoom tseem ceeb: Relays, contactors, nyees khawm, mus txawv tebchaws keyboards thiab tiv thaiv relays.
Khawm: Ntsuas tsis kam thaum nias thiab tso tawm. Nias (kaw) → tsis kam ≈ 0Ω; tso tawm (qhib) → tsis kam ≈ infinity. Qhov txawv txav? Hloov lub pob-tseem ceeb rau kev ua haujlwm ntawm rm6 thiab siab -amp switchgear.
Relays/contactors: Ntsuas coil kuj (yuav tsum phim tus nqi ntsuas) . 0Ω (luv luv Circuit Court) lossis infinity (qhib Circuit Court) txhais tau tias hloov cov khoom. Txheeb xyuas cov neeg sib txuas nrog kev sim txuas ntxiv (cov neeg kaw yuav tsum meej, qhib cov neeg sib txuas tsis sib txuas)-ib kauj ruam uas tiv thaiv kev poob qis hauv 2500 amp switchgear.
Kauj ruam 5: Txheeb xyuas qhov Kho
Tom qab kev daws teeb meem, rov ua kom lub zog thiab simulate ua haujlwm (xws li, nias lub khawm kaw). Siv lub tshuab ntsuas ntsuas los ntsuas qhov ntsuas hluav taws xob thiab cov teeb liab kis tau tus mob kom paub meej tias qhov ua txhaum raug kho -txawm koj ua haujlwm ntawm rm6, 1600 amp switchgear lossis 2500 amp switchgear.
Feem ntau Faults thiab Solutions
|
Fault Phenomenon |
Ua Tau |
Txoj kev daws teeb meem |
|
Switchgear yuav tsis kaw |
Lub zog tsis ua haujlwm, khawm khawm, relay coil qhib |
Ntsuas tswj lub zog; check khawm txuas ntxiv; xeem relay coil kuj |
|
Qhov taw qhia teeb tawm |
Lub teeb hluav taws xob, xoob xaim, tsis muaj zog |
Hloov lub teeb; tshawb xyuas cov kab hluav taws xob; ntsuas qhov ntsuas hluav taws xob |
|
Cov cuab yeej tiv thaiv tsis ua haujlwm |
Lub teeb liab kab qhib, sensor tsis ua haujlwm, daig relay |
Test teeb liab kab; xyuas cov zis sensor; tshuaj xyuas cov neeg sib cuag |
|
False tripping |
Tswj lub voj luv luv Circuit Court, faulty tiv thaiv relay |
Ntsuas lub voj tsis kam; hloov faulty relay |
Cov lus qhia tseem ceeb
Ib txwm txiav lub hwj chim ua ntej ntsuas qhov kev tiv thaiv lossis txuas ntxiv -qhov tseem ceeb rau kev nyab xeeb thaum ua haujlwm ntawm 1600 amp switchgear thiab 2500 amp switchgear.
Kos cov xov hlau ua ntej disassembling (xws li, thaij duab) kom tsis txhob muaj kev sib txuas tsis raug, tshwj xeeb tshaj yog nyob rau hauv cov khoom siv rm6 complex.
Khaws lub multimeter kom qhuav thiab huv si; khaws cia kom zoo tom qab siv.
Rau qhov tsis sib xws, rov ntsuas dua lossis simulate cov haujlwm ua haujlwm (xws li, cov khoom siv cua sov) kom pom qhov teeb meem -feem ntau hauv siab -load 2500 amp switchgear.
Hais txog LVMA Electric
Rau kev txhawb nqa ntawm switchgear txij nkawm lossis txuam txhim khu kev qha transformers rau kojrm6 ua, 1600 amp switchgearlos yog2500 amp switchgearsystems, tig mus rau Zhejiang Lvma Electric Co., Ltd. (LVMA). Raws li ISO 9001 certified chaw tsim tshuaj paus nrog 17 xyoo ntawm kev paub, peb tshwj xeeb hauv siab - roj zoo-immersed thiab qhuav- hom transformers, txhawb nqa los ntawm 40+ patents thiab kev coj noj coj ua los ntawm Mr. Ye Jinfei (40+ xyoo hauv R&D thiab GB standard formulation). Ua haujlwm thoob ntiaj teb kev lag luam thoob plaws Tebchaws Europe, Middle East, South America, Southeast Asia, thiab Africa, peb xa cov kev txawj ntse, ntsuab hluav taws xob uas koj tuaj yeem ntseeg tau.
Xaus
Kho switchgear thib ob Circuit Court faults tsis xav tau cov cuab yeej nyuaj. Ib qho yooj yim multimeter ua haujlwm yog tias koj paub cov txuj ci yooj yim no -txawm koj tab tom tuavrm6 ua, 1600 amp switchgearlos yog2500 amp switchgear. Ua raws li cov kauj ruam: paub meej tias qhov txhaum → xyuas lub zog → kuaj cov xov hlau → tshuaj xyuas cov khoom. Qhov no yuav pab nrhiav sai sai thiab kho cov teeb meem feem ntau. Kev siv ntau lub ntsuas hluav taws xob txhim kho kev saib xyuas kev ua haujlwm, txo qis lub sijhawm hloov pauv, thiab ua kom lub zog ruaj khov ua haujlwm.