Switchgear mus txawv tebchaws muaj ntau heev nyob rau hauv lub hwj chim faib systems. Cov teeb meem me me tsuas yog txwv tsis pub ib lub cuab yeej ua haujlwm, tab sis qhov loj tuaj yeem kaw tag nrho cov kab ntau lawm lossis txiav fais fab rau chav faib khoom. Nrhiav qhov teeb meem sai thiab kho nws txoj hauv kev tsis yog tsuas yog txuag nyiaj los ntawm kev tsim khoom ploj tab sis tseem ua rau tib neeg thiab khoom siv nyab xeeb. Kab lus no sau 10 yam laj thawj rau kev mus ncig thiab kauj ruam - los ntawm - cov kauj ruam kho, muab tso ua ke los ntawmZhejiang Lvma Electric Co., Ltd. (LVMA)- ib lub chaw tsim khoom ntawm cov khoom siv hluav taws xob kaw, hluav taws xob hluav taws xob hluav taws xob siab, thiab nruab nrab voltage switchgear. Nws yog cov lus qhia siv tau rau cov neeg ua haujlwm tu lub Hoobkas, cov tswj vaj tse, thiab cov kws tshaj lij engineering.
Kuv . 10 Feem ntau Uas ntawmswitchgearMus ncig ua si (Cim npe + kho)
1. Tshaj dhau mus ncig
Cov cim: Lub tshuab hluav taws xob hloov mus tom qab khiav ib ntus, thiab cov hluav taws xob hluav taws xob tau kub. Qhov no feem ntau tshwm sim thaum koj ntxiv cov cuab yeej tshiab, khiav ntau lawm ntawm qhov muaj peev xwm, lossis cov khoom thauj ntau dhau rau lub switchgear (nws yog qhov tshwj xeeb tshaj yog nrog nruab nrab voltage switchgear siv hauv factories).
Vim li cas nws tshwm sim: Qhov tseeb tam sim no mus los ntawm kev hloov pauv siab dua li nws qhov kev txwv tsis pub dhau, yog li kev tiv thaiv overloads ncaws tawm.
Yuav kho li cas:
Tshem tawm cov khoom siv tsis yog -tseem ceeb kom sib npaug ntawm lub zog thauj khoom.
Txheeb xyuas qhov ntsuas qhov ntsuas tam sim no. Yog tias nws tsis txaus, hloov kho lub Circuit Court breaker lossis cables kom haum rau hom switchgear (piv txwv li, high voltage hluav taws xob switchgear xav tau qhov chaw uas muaj qhov siab voltage).
Xyuas cov motors rau jamming lossis sticking - qhov no tuaj yeem ua rau tam sim no nce siab.
2. Short-Circuit Trip
Cov cim: Cov kev hloov mus rau txoj cai thaum koj tig rau, feem ntau nrog cov sparks, suab txawv txawv, los yog tsw ntxhiab tsw. Qhov no yog qhov teeb meem txaus ntshai uas tuaj yeem tshwm sim nrog txhua lub tshuab hloov pauv, suav nrog cov khoom siv hluav taws xob kaw.
Vim li cas nws tshwm sim: Cov teeb meem xws li theem- mus rau- theem luv luv, hauv av luv Circuit Court, puas cable rwb thaiv tsev, lossis teeb meem sab hauv hauv cov khoom siv txuas (xws li transformers lossis zaus converters).
Yuav kho li cas:
Tsis txhob yuam kom hloov mus rau - qhov no tuaj yeem ua rau qhov teeb meem loj dua lossis ua rau muaj xwm txheej.
Siv cov cuab yeej tshaj lij los ntsuas txhua qhov ntawm lub voj voog hluav taws xob, nrhiav qhov chaw puas, thiab hloov lossis kho sai sai.
Xyuas cov cuab yeej tseem ceeb txuas nrog lub switchgear (mos, transformers, zaus converters). Qhov no yog ib qho tseem ceeb ntxiv rau high voltage hluav taws xob switchgear, qhov twg luv luv circuits yuav loj dua.
3. Cov dej xau / Grounding txhaum
Cov cim: Hloov mus ncig vim muaj cov khoom siv tam sim no (RCD). Qhov no tshwm sim ntau zaus hauv qhov chaw ntub dej, xws li kev cob qhia hauv av lossis chaw los nag, tshwj xeeb tshaj yog nrog cov hluav taws xob hloov hluav taws xob.
Vim li cas nws tshwm sim: punctured cables, cov khoom siv damp, cov rwb thaiv tsev qub, lossis cov av tsis zoo.
Yuav kho li cas:
Siv ib qho ohmmeter los ntsuas cov rwb thaiv tsev. Yog tias qhov kev nyeem ntawv qis dua 0.5 MΩ, xyuas tag nrho lub voj voog kom zoo.
Qhuav cov khoom ntub dej kom qhuav thiab hloov cov kab hluav taws xob puas nrog cov uas ua tau raws li qhov xav tau ntawm qhov hloov hluav taws xob (piv txwv li, qhov nruab nrab voltage switchgear xav tau cov cables nrog cov qib rwb thaiv tsev kom zoo).
Txhim kho cov txheej txheem hauv av kom paub tseeb tias nws ua tau raws li lub teb chaws lossis cov qauv kev lag luam - qhov no txwv tsis pub muaj kev pheej hmoo.
4. Xuas tes ua / Tsis muaj kev sib cuag
Cov cim: Cov hloov pauv mus txawv tebchaws, thiab cov terminals tau kub, tsis muaj xim, lossis hlawv. Kev vibration thaum siv yog ib qho teeb meem loj ntawm qhov teeb meem no rau high voltage hluav taws xob switchgear thiab nruab nrab voltage switchgear.
Vim li cas nws tshwm sim: Bolts loosen lub sij hawm los ntawm kev vibration, kub, thiab txias. Kev sib cuag tsis zoo ua rau muaj kev tiv thaiv siab, uas ua rau overheating thiab ua rau lub qhov hluav taws xob tiv thaiv.
Yuav kho li cas:
Tua lub hwj chim ua ntej, tom qab ntawd nruj tag nrho cov kev sib txuas ntawm lub davhlau ya nyob twg hauv lub switchgear. Ceev faj nrog cov hluav taws xob hloov hluav taws xob sib txuas - tsis txhob ua kom lub kaw lus puas thaum kuaj cov xaim.
Tshem tawm cov xeb lossis oxide los ntawm qhov chaw sib cuag. Yog tias xav tau, ntxiv ib txheej nyias ntawm cov tin los yog hloov cov terminals puas kom ntseeg tau tias cov hluav taws xob zoo.
5. Kev laus ntawm Circuit Breaker / Hloov lub cev
Cov cim: Cov kev hloov pauv feem ntau tsis muaj laj thawj meej, thiab nws xav tias khib thaum tig nws los yog tawm. Qhov no yog ib qho kev hloov pauv uas tau siv rau 8-10 xyoo lossis ntau dua, suav nrog cov hloov hluav taws xob nruab nrab hauv cov chaw tsim khoom qub.
Vim li cas nws tshwm sim: Hnav thiab tsim kua muag rau ntawm qhov chaw sab hauv, cov khoom siv mus txawv tebchaws tawg, lossis hlawv cov kev sib cuag los ntawm kev siv sijhawm ntev -.
Yuav kho li cas:
Ntsuam xyuas lub Circuit Court breaker cov yam ntxwv tiv thaiv. Yog hais tias lawv tsis ua hauj lwm raws li lawv yuav tsum tau, hloov lub breaker tam sim ntawd (xaiv ib tug qauv uas phim lub switchgear hom - xws li high voltage hluav taws xob switchgear xav tau ib tug breaker rated rau high voltage).
Rau switchgear siv rau 8-10 xyoo los yog ntau tshaj, ua ib qho kev tshuaj ntsuam xyuas thiab hloov txoj kev npaj kom tsis txhob muaj teeb meem ntawm qhov qub.
6. Kev tiv thaiv tsis tsim nyog / ua haujlwm tsis zoo
Cov cim: Cov kev hloov mus los txawm tias thaum pib cov khoom siv ib txwm, tsis muaj cov cim ntawm overload lossis luv Circuit Court. Qhov no muaj feem ntau nrog cov ntse high voltage hluav taws xob switchgear lossis nruab nrab voltage switchgear uas muaj kev tiv thaiv nyuaj.
Vim li cas nws tshwm sim: Kev tiv thaiv kev teeb tsa (xws li kev txwv overcurrent lossis lub sijhawm mus txawv tebchaws) tsawg dhau, lub sijhawm pib pib luv luv, lossis kev sib raug zoo / cuam tshuam ua rau cov cuab yeej tiv thaiv tsis raug qhov xwm txheej.
Yuav kho li cas:
Kho kev tiv thaiv overcurrent, mus ncig sai, thiab xoom- kev tiv thaiv kab ke raws li cov cai tsim thiab cov kev xav tau tiag tiag.
Hloov kho qhov kev pab cuam ntawm lub tshuab hluav taws xob ntse thiab ntxiv cov khoom tiv thaiv- cuam tshuam (xws li cov ntxaij lim dej) kom txo cov teebmeem kev sib raug zoo.
7. Secondary Circuit Court / Tswj Faults
Cov cim: Cov cim tiv thaiv txawv txawv, flickering qhov taw qhia teeb, lossis kev mus ncig uas tsis xav txog. Lub kaw lus tswj yog qhov tseem ceeb rau kev kaw hluav taws xob hloov hluav taws xob kom ua haujlwm tsis tu ncua, yog li qhov txhaum no xav tau kev saib xyuas.
Vim li cas nws tshwm sim: Kev tswj cov xov hlau xoob, tawg relays, puas ntsoog auxiliary hu, los yog electromagnetic cuam tshuam cuam tshuam rau kev tswj Circuit Court.
Yuav kho li cas:
Txheeb xyuas cov kab txuas txuas ntxiv, cov ntsaws ruaj ruaj, thiab cov davhlau ya nyob twg hauv lub tshuab hloov pauv - kom nruj txhua qhov kev sib txuas xoob.
Hloov cov relays tawg thiab pab hloov pauv kom tswj tau qhov system ua haujlwm zoo.
8. Kev puas tsuaj (Capacitors, Contactors, Transformers)
Cov cim: Cov kev hloov mus rau txoj cai thaum pib cov cuab yeej tshwj xeeb, thiab muaj suab nrov txawv txav lossis tsis hnov tsw hauv lub tshuab hloov pauv. Qhov no feem ntau cuam tshuam rau cov khoom xws li them nyiaj capacitors hauv nruab nrab voltage switchgear.
Vim li cas nws tshwm sim: Leaky los yog tawg capacitors, daig contactor hu, los yog teeb meem hauv transformers.
Yuav kho li cas:
Hloov cov khoom puas nrog cov uas haum rau lub switchgear specs (piv txwv li, high voltage hluav taws xob switchgear xav tau capacitors uas muaj peev xwm tswj tau high voltage).
Tshawb xyuas Circuit Court them nyiaj thiab lub cev muaj zog tswj circuits kom paub tseeb tias tsis muaj teeb meem zais.
9. Cov yam ntxwv ib puag ncig (dampness, plua plav, kub kub)
Cov cim: Hloov mus ncig ntau zaus thaum lub caij los nag lossis huab cua kub. Qhov no yog ib qho teeb meem tshwm sim rau cov khoom siv hluav taws xob kaw hauv qhov chaw hnyav.
Vim li cas nws tshwm sim: Condensation ua rau to, plua plav buildup ua rau creepage, tsis zoo cua sov dissipation ua qhov chaw overheat, thiab lwm yam.
Yuav kho li cas:
Nruab cov dehumidifiers, cua sov, los yog cov khoom cua hauv tsev los yog ib ncig ntawm lub switchgear kom nws qhuav thiab kub zoo.
Ntxuav cov plua plav tawm ntawm lub tshuab hloov pauv tsis tu ncua thiab xyuas qhov kev sib khi ntawm cov khoom siv hluav taws xob kaw kom tsis txhob muaj plua plav thiab ya raws.
10. Mechanical Interlock / Mechanism Jamming
Cov cim: Cov kev hloov mus rau txoj cai tom qab qhib, lossis nws nyuaj rau qhib lossis kaw. Qhov no muaj feem xyuam rau lub switchgear cov khoom siv tshuab - tshwj xeeb tshaj yog high voltage hluav taws xob switchgear, uas muaj nruj kev ruaj ntseg interlock txoj cai.
Vim li cas nws tshwm sim: Kev ruaj ntseg interlocks tsis nyob rau hauv txoj hauj lwm, daig mechanical qhov chaw, los yog nkees springs.
Yuav kho li cas:
Xyuas lub qhov rooj switchgear, mus ncig teb chaws keyboards, thiab interlock mechanism kom paub tseeb tias lawv nyob nraum raug muab tso.
Lubricate mechanical qhov chaw. Kho lossis hloov cov khoom puas (xws li cov nplooj ntoo lossis cov pas nrig) kom qhib thiab kaw kom du.
II. Cov txheej txheem daws teeb meem txheem rau Switchgear mus ncig ua si (Safe and Efficient)
Ua raws li cov kauj ruam no kom nyab xeeb, kho sai:Ua ntej kom muaj kev nyab xeeb → Txheeb xyuas hom kev mus txawv tebchaws → Nrhiav qhov txhaum ib kauj ruam → Kho thiab tig lub zog rov qab
Kauj Ruam 1: Kev Ua Haujlwm Zoo (yuav tsum ua)
Tua lub hwj huam mov saum lub switchgear. Siv lub tshuab electroscope kom paub meej tias tsis muaj hluav taws xob - hauv av hauv Circuit Court yog tias xav tau.
Dai lub cim "Tsis Kaw, Kev Kho Kom Zoo Dua" txhawm rau tiv thaiv lub zog tsis raug cai -on.
Cov neeg ua haujlwm tu yuav tsum hnav cov khau insulating thiab hnab looj tes. Siv cov cuab yeej insulated - qhov no yog ib qho tseem ceeb ntxiv rau high voltage hluav taws xob switchgear los yog nruab nrab voltage switchgear.
Kauj Ruam 2: Txiav txim siab hom kev mus ncig
Kev mus ncig sab xis thaum tig rau → Tej zaum qhov luv luv (xyuas rwb thaiv tsev thiab luv -cov ntsiab lus hauv Circuit Court).
Kev mus ncig tom qab khiav ib ntus → Tej zaum yuav dhau los yog overheating (xyuas load tam sim no thiab kub dissipation).
Cov kev mus ncig thaum nias tus yuam sij TEST → Tej zaum cov dej xau los yog kev ua txhaum hauv av (xyuas cov rwb thaiv tsev thiab hauv av).
Kev mus ncig randomly → Tej zaum yuav xoob xaim, qhov qub, lossis cov teeb meem thib ob hauv Circuit Court (xyuas tag nrho cov kev sib txuas thiab kev tswj hwm qhov system).
Kauj ruam 3: Nrhiav qhov txhaum ib kauj ruam
Disconnect tag nrho cov ceg circuits thiab qhib lub ntsiab hloov uas tsis muaj load.
Yog hais tias nws tseem mus txawv tebchaws: qhov teeb meem yog nyob rau hauv lub ntsiab switchgear los yog lub ntsiab hloov (xyuas lub ntsiab Circuit Court breaker, busbar, thiab lub ntsiab thaiv).
Yog tias nws tsis mus txawv tebchaws: Qhov teeb meem yog nyob rau hauv ib ceg Circuit Court lossis cov khoom siv (kos txhua ceg ntawm ib qho).
Tig rau txhua ceg Circuit Court nyias nyias kom pom qhov twg ua rau kev mus ncig. Tom qab ntawd kos hauv qhov kev txiav txim no: "xaim → khoom siv → qhov chaw → grounding". Rau nruab nrab voltage switchgear, xyuam xim rau siab -voltage cable thiab transformer rwb thaiv tsev.
Kauj Ruam 4: Txhim kho thiab kuaj lub zog rov qab los
Kho lossis hloov qhov tsis raug. Xyuas kom tseeb tias cov khoom tshiab haum rau lub switchgear cov specs (piv txwv li, kaw hluav taws xob switchgear xav tau qhov chaw uas phim lub kaw lus loj thiab qib kev tiv thaiv).
Kuaj rwb thaiv tsev tiv thaiv, kev khiav hauj lwm tam sim no, thiab av tiv thaiv kom paub meej tias lawv ua tau raws li cov qauv.
Tig lub zog rov qab rau hauv cov theem: Tsis yog-load test → Lub teeb-load test → maj mam ntxiv load tag nrho. Yog tias nws rov qab los dua, nres tam sim ntawd thiab rov kuaj dua.
III. Cov lus qhia tiv thaiv txhua hnub kom tsis txhob hloov pauv mus ncig
Tsis tu ncua nruj cov kev sib txuas ntawm lub davhlau ya nyob twg, ntxuav cov plua plav hauv lub tshuab hloov pauv, thiab dehumidify (tshwj xeeb tshaj yog kaw hluav taws xob switchgear, uas tsis muaj huab cua zoo). LVMA qhia tias ua cov tshev no txhua peb lub hlis rau kev lag luam switchgear.
Siv cov cuab yeej infrared los xyuas qhov tseem ceeb (xws li cov hluav taws xob hluav taws xob, cov contactors, thiab cov busbars) kom muaj cua sov tsis tu ncua - qhov no cuam tshuam cov teeb meem ntxov. LVMA's switchgear tau zoo dua cov cua kub dissipation tsim kom txo qis overheating txaus ntshai.
Tshawb xyuas thiab kho qhov kev tiv thaiv hluav taws xob tiv thaiv hluav taws xob raws sij hawm. Qhov no yog qhov tseem ceeb rau high voltage hluav taws xob switchgear thiab nruab nrab voltage switchgear, uas muaj kev tiv thaiv nruj heev. LVMA muab kev cob qhia kev tshaj lij rau cov neeg siv khoom siv peb lub tshuab hloov pauv.
Khaws cov ntaub ntawv zoo: Sau cia thaum mus ncig ua si, cov cim qhia dab tsi, qhov ua rau, koj kho nws li cas, thiab txhua qhov chaw koj hloov. Qhov no yuav pab tau rau yav tom ntej siv.