Hluav taws xob hauv av ua txhaum hauv Transformers: Ua rau, cuam tshuam, thiab kev tiv thaiv

Transformers yog lub hauv paus caj qaum ntawm ntau lub zog hluav taws xob. Lawv txav hluav taws xob nyob ib puag ncig zoo-tshwj xeeb tshaj yog thaum nce voltage nce lossis nqis. Tab sis txawm hais tias transformers yog tsim tawv, lawv tsis invincible. Ib qho teeb meem uas cov tswv lag luam tsis xav daws yog qhov teeb meem hauv av hluav taws xob-vim thaum lawv tshwm sim, lawv tuaj yeem ua rau puas tsuaj thiab txaus ntshai.

Nyem rau daim duab kom paub ntau ntxiv.

Ib qho hluav taws xob hauv av ua txhaum tshwm sim thaum tus neeg xyuas pib nyob ua ib qho kev sib cuag nrog ib yam dab tsi hauv av -xws li lub tank transformer, lub hauv paus, lossis lub ntiaj teb / hauv av sib txuas.

Thaum qhov ntawd tshwm sim, koj tau txais txoj kev txawv txav tam sim no. Thiab nyob ntawm seb nws loj npaum li cas (thiab ceev npaum li cas nws tau kuaj pom), nws tuaj yeem ua rau:

khoom puas tsuaj,

kev tawm tsam,

arcing los yog overheating,

thiab muaj kev nyab xeeb tiag tiag rau cov neeg nyob ze.

Hauv transformers, hluav taws xob hauv av ua txhaum tuaj yeem tshwm sim nyob rau hauv ntau qhov chaw-xws li thawj winding, theem nrab winding, los yog txawm nyob rau hauv lub rwb thaiv tsev system. Yog tias nws tsis quav ntsej lossis pom tias lig dhau lawm, txhua yam tuaj yeem mus ntawm "teeb ​​meem" mus rau "kho loj" sai sai.

Muaj ob peb yam laj thawj uas hluav taws xob hauv av faults tshwm. Qee qhov yog maj mam, lwm tus yog tam sim ntawd thiab dab tuag:

1. Rwb thaiv tsev Deterioration

Transformer rwb thaiv tsev maj mam muaj hnub nyoog vim cua sov, ya raws, thiab hluav taws xob kev nyuaj siab. Thaum lub sij hawm, cov rwb thaiv tsev yuav tsis muaj zog txaus uas cov neeg xyuas pib tuaj yeem pib "nrhiav" txoj hauv av.

2. Cov dej tsis huv

Cov dej noo yog qhov loj. Thaum cov dej nkag mus rau hauv lub tshuab hloov pauv (feem ntau dhau los ntawm kev xau lossis kev tuav tsis zoo), nws txo cov rwb thaiv tsev lub zog thiab ua rau kev puas tsuaj ntau dua.

3. Mechanical puas

Qee lub sij hawm nws tsis yog hluav taws xob tag nrho - nws yog lub cev. Kev vibration, thauj kev puas tsuaj, lossis cov khoom siv hluav taws xob los ntawm luv luv - Circuit Court tuaj yeem ua rau lub rwb thaiv tsev winding thiab tsim ib txoj hauv kev rau hauv av.

4. Cov xwm txheej xob laim thiab hluav taws xob

Hluav taws xob ntaus thiab hloov surges tuaj yeem cuam tshuam kev rwb thaiv tsev tshaj qhov nws tuaj yeem zam tau. Txawm hais tias lub transformer tseem ciaj sia, kev ntxhov siab dua tuaj yeem thawb lub rwb thaiv tsev mus rau qhov tsis ua haujlwm.

5. Kev tsim khoom tsis raug

Qhov no tsis yog feem ntau ua rau, tab sis nws tshwm sim. Ib qho kev puas tsuaj ntawm cov ntaub ntawv rwb thaiv tsev los yog kev sib dhos zoo tuaj yeem ua rau muaj qhov tshwm simhluav taws xob hauv av txhaumtom qab lub transformer yog nyob rau hauv kev pab.

Cia peb ua tiag: txawm tias "me" hluav taws xob hauv av txhaum yog tsim nyog ua tiag. Cov teebmeem tuaj yeem muaj los ntawm kev ntxhov siab mus rau kev puas tsuaj.

Nov yog dab tsi tuaj yeem tshwm sim:

Vim tias transformers yog kim thiab ntev - cov khoom muaj nqis, feem ntau nws yog qhov zoo tshaj los tshawb xyuas tam sim ntawd tsis yog "tos thiab pom."

Cov txheej txheem kev tiv thaiv niaj hnub no tau tsim los txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws nws yuav tsum tau txiav cov txheej txheem kev loj Cov txheej txheem muaj xws li:

Kev tiv thaiv sib txawv

Differential relays sib piv cov nkag thiab tawm tam sim no. Yog tias muaj qhov tsis sib haum xeeb dhau ntawm qhov chaw pib, qhov ntawd tuaj yeem qhia qhov ua txhaum sab hauv- suav nrog qhov ua txhaum hauv av.

Av txhaum Relays

Cov relays saib xyuas qhov txawv txav tam sim no mus rau hauv av. Thaum cov txiaj ntsig zoo li tsis raug, tus relay tawm mus rau lub breaker los tiv thaiv lub transformer.

Neutral Grounding Resistors

Neutral grounding resistors txwv kev txhaum tam sim no. Qhov no pab txo cov khoom siv puas tsuaj thiab tseem tso cai rau cov txheej txheem tiv thaiv ua nws txoj haujlwm.

Rwb thaiv tsev saib xyuas

Kev saib xyuas tsis tu ncua. Kev ntsuam xyuas zoo li kev ntsuas kev tiv thaiv kev tiv thaiv hluav taws xob thiab kev txheeb xyuas cov roj yaj (DGA) tuaj yeem nthuav tawm cov teeb meem kev rwb thaiv tsev ua ntej muaj hluav taws xob hauv av txhaum tag nrho.

Kev tiv thaiv Surge

Surge arresters pab tiv thaiv lub transformer los ntawm xob laim thiab hloov pauv hloov pauv -qhov tseem ceeb muab kev tiv thaiv kev sib ntaus sib tua.

Yog tias koj nug cov kws paub txog kev ntseeg siab tshaj plaws uas ua haujlwm zoo tshaj plaws, feem ntau lawv yuav hais tias: kev saib xyuas thiab saib xyuas. Tsis muaj khawv koob ua kom yuam kev-tsuas yog kev siv zog sib xws.

Kev tiv thaiv zoo feem ntau suav nrog:

Kev tshuaj xyuas niaj hnub (tank condition, terminations, grounding connections),

saib xyuas cov roj mob thiab cov ntsuas muaj feem xyuam,

periodic rwb thaiv tsev kuaj,

thiab tshuaj xyuas cov txiaj ntsig kev kuaj mob zoo li DGA tiam sis.

Catching rwb thaiv tsev degradation ntxov tuaj yeem txo qhov kev pheej hmoo ntawm kev ua txhaum hauv av thiab zam kev ua tsis tiav kim tom qab.

Hluav taws xob hauv av ua txhaum loj heev, thiab lawv feem ntau tsis zoo dua ntawm lawv tus kheej. Lawv tuaj yeem tshwm sim los ntawm kev puas tsuaj los ntawm rwb thaiv tsev, kev nkag mus ntawm cov dej noo, kev puas tsuaj rau cov khoom siv, lossis hluav taws xob surges xws li xob laim thiab hloov cov xwm txheej.

Txoj xov zoo? Nrog rau cov txheej txheem tiv thaiv zoo nyob rau hauv qhov chaw- thiab cov txheej txheem kev tiv thaiv kev tiv thaiv ib puag ncig- cov neeg ua haujlwm tuaj yeem tshawb pom cov teeb meem sai dua, txwv kev puas tsuaj, txhim kho kev nyab xeeb, thiab pab txuas ntxiv lub neej ntawm lub tshuab hluav taws xob. Hauv luv luv:saib xyuas ntxov, teb sai, thiab tsis txhob quav ntsej cov paib.

Hu rau tam sim no