Dab tsi yog Qhov Kev Ua Phem Ntawm Siab -voltage Switchgear?
Apr 11, 2026
Tso lus
1. Rwb thaiv tsev Faults (Feem ntau)
Moisture thiab Condensation: Cov av noo siab hauv lub txee ua rau muaj qhov sib txawv ntawm cov khoom siv insulating, ua rau muaj kev nkag siab, flashover, thiab txawm tias luv luv Circuit Court. Qhov no feem ntau tshwm sim hauv qhov chaw hloov pauv tsis zoo lossis thaum lub tshuab cua sov tsis ua haujlwm.
Rwb thaiv tsev laus lossis cov khoom siv tsis zoo: Siv cov ntaub ntawv insulating tsis zoo, xws li hygroscopic epoxy resin, lossis lub sijhawm ua haujlwm ntev - ua rau kev ua haujlwm tsis zoo ntawm cov rwb thaiv tsev, ua rau sab hauv / ib nrab tawm.
Tsis txaus Creepage Distance thiab Cov Khoom txawv teb chaws: Kev sib txuam ntawm cov av, xws li cov plua plav, tshuaj tsuag ntsev, lossis cov khoom txawv teb chaws xws li cov tsiaj me lossis cov ntsia hlau, ua rau cov rwb thaiv tsev luv luv, ua rau paug tawm mus rau hauv av lossis nruab nrab ntawm theem.
Siab-Qhov chaw txaus ntshai: Los ntawm- phab ntsa bushings, txhawb insulators, tiv tauj lub thawv, busbar compartments.
2. Mechanical Faults
Circuit Breaker Tsis kam ua haujlwm / Kev ua haujlwm tsis raug: Jammed cov txheej txheem kev ua haujlwm, hlawv -tawm cov coils, cov khoom sib kis tsis zoo, lossis lubrication tsis zoo tuaj yeem ua rau lub Circuit Court breaker tsis qhib thaum nws yuav tsum qhib, lossis tsis kaw thaum nws yuav tsum kaw. Handcart tsis tuaj yeem raug thawb rau hauv / cranked tawm: Deformed qhia rails, jammed txoj hauj lwm xauv phaj, los yog interlocking mechanism tsis rov pib dua, ua rau nyuaj rau kev khiav hauj lwm lub laub.
Kev cuam tshuam tsis ua haujlwm: Kev tsis ua haujlwm ntawm cov khoom siv lossis hluav taws xob "tsib- pov thawj" cuam tshuam, xws li kev sib tsoo ntawm lub laub thaum lub Circuit Court breaker raug kaw, ua rau muaj kev phom sij loj heev.
High- thaj chaw muaj kev pheej hmoo: Caij nplooj ntoos hlav kev khiav hauj lwm mechanism, txuas pas nrig, tripping ib nrab-shaft, qhia rails.
3. Tam sim no -Kev Ua Haujlwm Kub Kub Ua Haujlwm
Hu rau Overheating: Kev sib cuag tsis zoo ntawm kev txav mus los thiab nyob ruaj khov ntawm cov hluav taws xob hluav taws xob, xws li cov xoob xoob, kev ntxig tsis zoo, lossis hnav cov nyiaj plating, ua rau muaj kev sib cuag, ua rau muaj kev kub ntxhov hnyav lossis txawm tias vuam.
Busbar thiab Cable Connection Overheating: Loose joint bolts, tsis txaus tooj liab busbar hla -section, los yog substandard khoom yuav ua rau overheating nyob rau hauv hnyav loads.
Phab ntsa Bushing thiab CT Overheating: Kev ua txhaum ntawm cov tub ntxhais sab hauv lossis cov windings ntawm lub tam sim no transformer, los yog kev sib cuag tsis zoo ntawm cov thawj terminals, tuaj yeem ua rau muaj qhov kub thiab txias.
Siab -Qhov chaw muaj kev pheej hmoo: Plexicon hu (kev sib txuas ntawm kev txav mus los thiab chaw nyob ruaj khov ntawm cov hluav taws xob hluav taws xob), cais cov kev sib txuas sib txuas, qhov chaw nres tsheb busbar, thiab cable terminals.
4. Kev khiav hauj lwm Mechanism thiab Tswj Circuit Court Faults
Energy Storage Motor Faults: Kev puas tsuaj rau lub cev muaj zog, kev ua haujlwm tsis zoo ntawm cov keyboards txwv, lossis iav jamming tiv thaiv lub caij nplooj ntoos hlav ua haujlwm ntawm kev khaws cia lub zog kom zoo.
Kev Pabcuam Hloov Faults: Kev hloov tsis tiav lossis kev sib cuag tsis zoo ntawm cov neeg pabcuam hloov pauv tuaj yeem ua rau muaj teeb meem yuam kev lossis cuam tshuam rau cov laj thawj thib ob.
Kev Tiv Thaiv thiab Tswj Kev Siv Hluav Taws Xob Tsis Ua Haujlwm: Kev ua haujlwm tsis zoo ntawm cov hloov pauv me me lossis kev puas tsuaj rau lub zog hluav taws xob tuaj yeem ua rau lub tshuab hluav taws xob poob tswj lub zog, ua rau nws tsis tuaj yeem ua haujlwm hluav taws xob.
5. Ib puag ncig thiab lwm yam tsis ua haujlwm
Internal Arc Failure: Ib qho kev sib tsoo loj heev, feem ntau yog tsim los ntawm cov rwb thaiv tsev hais los saum toj no lossis tam sim no - nqa qhov yuam kev. Ib qho arc nyob rau hauv lub txee ua rau siab - kub, siab - pa roj; yog hais tias lub siab nyem channel yog tsim tsis tsim nyog los yog lub qhov rooj txee tsis muaj zog txaus, nws yuav ua rau muaj teeb meem loj xws li txee tawg.
Interlocking Electromagnet Failure: Burnt-tawm cov electromagnets los yog jammed cores tiv thaiv kev qhib lub lag luam.