Peb Qhov Kev Ua Haujlwm Zoo Tshaj Plaws hauv Kev Siv Hluav Taws Xob Hluav Taws Xob

Hauv kev saib xyuas cov khoom siv hluav taws xob, cov khoom siv machining, thiab cov khoom tswj, peb hom kev ua txhaum feem ntau yog: contactor faults, voltage Circuit Court breaker faults, thiab thermal relay faults. Cov kev ua txhaum no tsis tsuas yog cuam tshuam rau cov cuab yeej ua haujlwm tau zoo tab sis kuj tuaj yeem ua rau cov khoom tseem ceeb xws li Spring Electrical Contacts, Contactor Contacts, thiab Hluav Taws Xob. Cov hauv qab no yog cov txheej txheem txheej txheem los ntawm kev pom kev tshaj lij.

Contactors yog cov khoom tseem ceeb uas tswj kev pib thiab nres ntawm cov motors. Lawv cov qauv kev sib cuag feem ntau siv cov ntaub ntawv xws li Hluav Taws Xob Nyiaj Tiv Thaiv, Nyiaj Nickel Hluav Taws Xob Hluav Taws Xob rau Cov Tiv Thaiv, thiab Nyiaj Hluav Taws Xob Tiv Thaiv Rivets. Yog li ntawd, txhua qhov kev sib cuag tsis zoo tuaj yeem ua rau lub cev tsis ua haujlwm.

1. Theem poob hauv kev sib cuag

Cov tsos mob:

Lub cev muaj zog khiav nrog ib theem poob tab sis tseem tig.

Lub suab humming hnyav yog emitted.

Kev tsis txaus ntseeg tam sim no.

Ua rau:

Kev sib cuag tsis zoo ntawm cov neeg sib cuag.

Loose terminal screws.

Tiv tauj oxidation los yog hnav (xws li kev laus ntawm cov nyiaj hluav taws xob tiv tauj lossis cov ntsiab lus hluav taws xob tiv tauj).

Kev daws:

Nres lub tshuab tam sim ntawd.

Tighten lub davhlau ya nyob twg screws.

Tshawb xyuas thiab hloov cov neeg sib cuag (siv Composite Rivet Contacts lossis Bi-hlau Contact Point Rivets rau Hloov).

2. Hu rau Vuam

Cov tsos mob:

Lub cev muaj zog txuas ntxiv mus tom qab nias lub khawm nres.

Tus contactor tsis tuaj yeem txiav tawm.

Ib lub suab humming los yog hnov ​​tsw tsw qab.

Ua rau:

Overload tam sim no ua rau kev sib cuag vuam.

Tiv tauj cov ntaub ntawv qaug zog (xws li, ntev- lub sij hawm overcurrent nqa ntawm Spring Loaded Electrical Contacts los yog hluav taws xob tiv tauj).

Kev daws:

Disconnect lub hwj chim tam sim ntawd.

Tshawb xyuas cov loads txawv txav.

Hloov cov contactor lossis kev sib txuas lus (xws li Cu AgSnO2 Bimetal Silver Contact Rivets).

3. Armature tsis koom nrog thaum lub coil yog energized

Cov tsos mob:

Tsis muaj suab nrov

Contactor tseem nyob ruaj khov

Tsis muaj kev vibration lossis suab nrov

Ua rau:

Coil qhib Circuit Court

Armature mechanical jamming

Txo qhov tseeb ntawm qhov txias- tsim qhov chaw (nrog rau daim ntawv thov Cold Forming Hlau thiab Cold Forming Technology hauv kev sib cuag cov khoom sib txuas)

Kev daws:

Kho lub armature txav mechanism

Rewind lub kauj raws li tus thawj tsis thiab impregnate thiab qhuav nws

Tshawb xyuas qhov txawv txav ntawm cov khoom sib txuas

Circuit Court breakers feem ntau nruab nrog Silver Contacts Hauv Breakers lossis Silver Alloy Rotating Electric Contactors los txhim kho conductivity thiab arc tsis kam. Kev ua txhaum yog feem ntau cuam tshuam nrog kev siv tshuab siab, kev sib cuag txoj haujlwm, thiab cov teebmeem thermal.

1. Kev kub siab ntawm kev sib cuag

Cov tsos mob:

Kub tsw tsw

Qhov kub tseem ceeb ntawm kev sib cuag

Localized hot spots tshwm nyob rau hauv lub txee tswj

Ua rau:

Qhov kev txav mus los tsis tau muab tso rau hauv qhov chaw nyob ruaj khov

Kev sib cuag tsis txaus

Oxidation ntawm silver contact nto (Electrical Silver Contacts and Silver Contacts in Breakers xav tau kev saib xyuas tsis tu ncua)

Kev daws:

Kho cov txheej txheem kev khiav hauj lwm kom paub meej tias qhov kev sib cuag txav tau nkag mus rau hauv qhov chaw nyob ruaj khov

Tshawb xyuas kev sib cuag siab

Ntxuav los yog hloov lub rooj sib tham

2. Arcing thiab Popping Thaum Lub Hwj Chim -On

Cov tsos mob:

Ib qho pom tseeb hluav taws xob arc

Instantaneous popping suab ntawm tus tes hloov

Nyuaj pib lub load

Ua rau:

Ntev ntev load

Kev sib cuag xoob ua rau muaj kev tiv thaiv ntau ntxiv

Intensified arc erosion (txog rau kev ua haujlwm degradation ntawm hluav taws xob tiv tauj thiab caij nplooj ntoos hlav hluav taws xob tiv tauj)

Kev daws:

Kev tshuaj xyuas yuav tsum tau ua tom qab fais fab tuag

Hloov cov neeg hnav (xws li, Custom Electric Bimetal Rivet)

Xyuas kom tsis muaj -load fais fab - nyob rau hauv ib txwm ua ntej siv lub load.

Lub thermal relay yog lub luag haujlwm rau kev tiv thaiv lub cev muaj zog. Nws cov qauv sab hauv feem ntau yog nruab nrog cov ntaub ntawv rhiab heev xws li nyiaj hluav taws xob tiv tauj, hluav taws xob tiv tauj, thiab lub caij nplooj ntoos hlav precision.

1. Thermal Element Burnout

Cov tsos mob:

Lub cev muaj zog tsis tuaj yeem pib

Obvious humming suab

Kev ua haujlwm tsis tu ncua

Ua rau:

Lub thermal relay ua haujlwm zaus yog siab dhau

Downstream overload

Kev teeb tsa tus nqi qis dhau

Kev daws:

Hloov cov thermal relay

Kho qhov teeb tsa tam sim no

Tshawb xyuas qhov txawv txav ntawm lub cev muaj zog

2. Thermal Relay "False Trip"

Ua rau muaj xws li:

Qhov teeb tsa tus nqi qis dhau lawm

Lub sijhawm pib lub cev muaj zog ntev dhau lawm

Kev khiav hauj lwm zaus siab dhau lawm, cov khoom thermal feem ntau raug cuam tshuam

Kev daws:

Nce tus nqi teeb tsa

Txheeb xyuas txoj kev pib lub cev muaj zog (piv txwv li, pib qeeb)

Hloov nrog lub thermal relay zoo dua los yog kev sib cuag (xws li Silver Cadmium Oxide Hluav Taws Xob Tiv Thaiv Rivet) yog tias tsim nyog

3. Thermal Relay "Tsis Tripping"

Ua rau:

Kev teeb tsa tus nqi siab dhau lawm

Bimetallic strip qaug zog

Tiv tauj tsis rov pib dua

Tsis pom qhov txawv tam sim no

Kev daws:

Pib dua qhov teeb tsa tus nqi raws li qhov kev thauj khoom tam sim no

Tsis tu ncua xyuas qhov kev khiav hauj lwm rhiab heev

Pib dua tom qab lub bimetallic strips txias

Xyuas seb Puas yog cov ntsiab lus sib cuag hluav taws xob, cov chaw tiv tauj, thiab lwm yam, puas yog deformed vim yog hlau txias forming (los yog txias forming ntawm hlau)?

Cov khoom sib tiv tauj tau siv dav hauv kev sib cuag lub nplhaib, lub caij nplooj ntoos hlav hluav taws xob tiv tauj, hluav taws xob fittings, bi-hlau nyiaj tiv tauj cov ntsiab lus, thiab lwm yam khoom siv. Lawv kev ntseeg ncaj qha cuam tshuam rau tag nrho cov kab ke.

1. Tshawb xyuas kev sib cuag Oxidation thiab paug

Silver contact oxide txheej feem ntau nyob twj ywm thiab tsis tas yuav kho.

Copper contact oxide yuav tsum muaj lub teeb ua ntaub ntawv; tsis txhob siv cov ntawv xuab zeb (kom tsis txhob embedded sand particles ua rau tsis zoo sib cuag).

2. Kho qhov kub hnyiab lossis kub hnyiab

Me me scorching ntawm tooj liab hu tuaj yeem kho.

Kev kub nyhiab me me ntawm cov nyiaj sib cuag feem ntau tsis cuam tshuam rau kev ua haujlwm.

Kev vuam hnyav yuav tsum ua kom tiav kev hloov pauv (Electrical Bi-hlau Rivets, Composite Rivet Contacts yog cov kev xaiv).

3. Tshawb xyuas kev sib cuag siab

Siv cov "paper strip method" los txiav txim seb qhov pib thiab qhov kawg siab puas tsim nyog:

Thaum xub thawj siab: Daim ntawv sawb yuav tsum tau compressed tab sis tuaj yeem rub tawm.

Thaum kawg siab: Hauv siab - cov khoom siv hluav taws xob muaj peev xwm, lub kua muag me ntsis thaum daim ntawv rub tawm yog qhov zoo tagnrho.

Kev sib cuag tsis txaus yuav ua rau muaj kev vibration, nce arcing, thiab txo hluav taws xob lub neej.

1. Fuse tshuab

(1) Tsis yog-fault- cuam tshuam fuse tshuab

Ua rau:

Muaj peev xwm fuse tsis txaus

Qhov pib tam sim no surge yog ua rau lub fuse tshuab

Kev daws:

Xaiv lub fuse kom raug raws li lub cev muaj zog load

Fuses tsis yog cov cuab yeej tiv thaiv ntau dhau; tsuas yog siv rau luv luv - tiv thaiv Circuit Court

(2) Fault-txog fuse tshuab

Ua rau:

Tib -theem grounding nyob rau hauv lub ntsiab Circuit Court

Theem -rau-theem luv luv Circuit Court

Kev Tiv Thaiv:

Xaiv lub cev muaj zog thiab qis- cov khoom siv hluav taws xob uas tsim nyog rau ib puag ncig

Txhim kho kev tshuaj xyuas thiab kev saib xyuas txhua hnub

2. Txoj kev xaiv fuse muaj peev xwm

Common formula: Rated fuse tam sim no=K × Tsav Rated Current

Fuses nrog lub peev xwm ua kom sov me me: K=4-6

Fuses nrog lub peev xwm loj thaum tshav kub kub: K=1.5-2.5

Cov kev ceev faj:

Cov khoom siv fuse thiab tus tuav fuse yuav tsum muaj kev sib cuag zoo.

Kev xaim yuav tsum tsim nyog, thiab lub caij nplooj ntoos hlav ntxhua khaub ncaws yuav tsum tau ntxiv.

Copper-txhuas kev sib txuas yuav tsum tau tooj liab-aluminium hloov pob qij txha.

Rau qhov loj -muaj peev xwm ntsaws- hauv fuses, ib daim nyias nyias tuaj yeem muab ntxiv los txhim kho kev sib cuag.

Cov ntsiab lus saum toj no suav nrog peb qhov kev ua txhaum loj tshaj plaws thiab cov txheej txheem daws teeb meem hauv kev ua haujlwm hluav taws xob, thiab muab cov lus piav qhia ua haujlwm raws li cov yam ntxwv ntawm cov khoom tseem ceeb xws li Spring Loaded Electrical Contacts, Hluav taws xob tiv tauj, Cold forming Technology, thiabSilver Contacts hauv Breakers.