Surge arrester. Surge arrester

Cov txheej txheem:

Surge arrester. Surge arrester
Surge arrester. Surge arrester

Video: Surge arrester. Surge arrester

Video: Surge arrester. Surge arrester
Video: Introduction to Lightning or Surge Arrester | Video #2 2024, Hlis ntuj nqeg
Anonim

Tus neeg ntes hluav taws xob yog ib qho ntawm cov khoom siv hluav taws xob uas paub ntau tshaj plaws siv rau kev tiv thaiv network.

Kev piav qhia ntawm kev sib tw

Pib nrog, nws tsim nyog piav qhia vim li cas, hauv paus ntsiab lus, impulse overvoltages tshwm sim thiab yog vim li cas lawv txaus ntshai. Yog vim li cas rau qhov tshwm sim ntawm cov txheej txheem no yog kev ua txhaum ntawm huab cua lossis hloov txheej txheem. Cov kev tsis xws li no muaj peev xwm ua rau muaj kev puas tsuaj loj rau cov khoom siv hluav taws xob uas yuav cuam tshuam.

Ntawm no yog tsim nyog muab piv txwv ntawm tus pas nrig. Cov cuab yeej no ua txoj haujlwm zoo tshaj plaws ntawm kev xa tawm muaj zog los tsoo ib qho khoom, tab sis nws yuav tsis tuaj yeem pab txhua txoj hauv kev yog tias cov paug nkag mus rau hauv lub network los ntawm cov kab nyiaj siv ua haujlwm. Yog tias qhov no tshwm sim, ces thawj tus neeg xyuas pib uas nkag mus rau hauv txoj kev ntawm qhov tso tawm yuav ua tsis tiav, thiab tuaj yeem ua rau muaj kev puas tsuaj rau lwm yam khoom siv hluav taws xob uas txuas nrog tib lub network hluav taws xob. Kev tiv thaiv theem pib - kaw tag nrho cov khoom siv thaum muaj cua daj cua dub, tab sis qee zaum qhov no tsis tuaj yeem ua tsis tau, thiab yog li cov khoom siv xws li txwv tau tsim.surge arrester.

surge arrester
surge arrester

Yuav siv lub cuab yeej muab dab tsi

Yog tias peb tham txog cov lus pom zoo ntawm kev tiv thaiv, ces lawv qhov kev tsim yog me ntsis phem dua li cov neeg raug ntes. Nyob rau hauv ib txwm version, carborundum resistors raug ntsia. Ib qho kev tsim ntxiv yog qhov khoob khoob, uas txuas nrog hauv koob.

Hauv kev ntes cov neeg tawg rog, muaj cov ntsiab lus xws li cov tsis yog linear transistors. Lub hauv paus rau cov ntsiab lus no yog zinc oxide. Muaj ob peb qhov zoo li no, thiab lawv tag nrho ua ke rau hauv ib kem, uas tau muab tso rau hauv ib qho tshwj xeeb ua los ntawm cov khoom siv xws li porcelain lossis polymer. Qhov no ua kom muaj kev nyab xeeb tag nrho ntawm cov khoom siv no, thiab tseem tiv thaiv lawv los ntawm kev cuam tshuam sab nraud.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov ntawm no tias qhov tseem ceeb ntawm cov surge suppressor yog tus tsim ntawm zinc oxide resistors. Qhov kev tsim no tso cai rau koj nthuav dav cov haujlwm uas lub cuab yeej ua tau zoo heev.

surge arrester
surge arrester

Technical parameters

Zoo li lwm yam khoom siv, tus neeg ntes hluav taws xob muaj cov yam ntxwv tseem ceeb uas txiav txim siab nws qhov kev ua tau zoo thiab zoo. Nyob rau hauv cov ntaub ntawv no, xws li ib tug ntsuas yog tus nqi ntawm lub khiav hauj lwm voltage, uas yuav muab tau mus rau lub terminals ntawm lub ntaus ntawv yam tsis muaj sij hawm txwv.

Muaj ib yam ntxwv ntxiv - conduction tam sim no. Qhov no yog tus nqi ntawm qhov tam sim no uas dhau los ntawm lub cuab yeej nyob rau hauv lub zog ntawm voltage. Qhov ntsuas no tuaj yeem ntsuas tau tsuas yog hauv cov xwm txheej ntawm kev siv tiag tiag ntawm lub cuab yeej. Cov lej tseem ceeb ntawm qhov ntsuas no yog lub peev xwm thiab kev ua haujlwm. Tag nrho qhov taw qhia ntawm tus yam ntxwv no tuaj yeem ncav cuag ntau pua microamperes. Raws li qhov tau txais txiaj ntsig ntawm tus yam ntxwv no, qhov kev ua tau zoo ntawm tus neeg tua hluav taws raug soj ntsuam.

surge ntes opn
surge ntes opn

Kev piav qhia ntawm cov cuab yeej ntes

Yuav ua li cas los tsim cov cuab yeej no, cov tuam txhab siv tib lub tshuab hluav taws xob thiab cov qauv tsim uas siv rau hauv kev tsim khoom ntawm lwm yam khoom. Qhov no yog qhov pom tau tshaj plaws thaum saib qhov ntev thiab cov khoom siv los ua rooj plaub. Cov tsos mob kuj muaj qee qhov zoo sib xws nrog lwm cov khoom siv. Txawm li cas los xij, nws yog ib qho tsim nyog yuav tsum tau saib xyuas tshwj xeeb rau cov khoom xws li kev teeb tsa ntawm lub tshuab hluav taws xob, nrog rau nws txuas ntxiv rau cov neeg siv khoom siv hluav taws xob.

Muaj ntau qhov yuav tsum tau siv tshwj xeeb rau cov khoom siv hauv chav kawm no. Lub cev ntawm tus surge arrester yuav tsum tau tiv thaiv tag nrho los ntawm kev sib cuag tib neeg. Qhov kev pheej hmoo uas cov cuab yeej ntes hluav taws vim muaj peev xwm overloads yuav tsum raug tshem tawm tag nrho. Yog tias lub ntsiab tsis ua tiav, qhov no yuav tsum tsis txhob ua rau luv luv hauv kab.

non-linear surge arrester
non-linear surge arrester

Teem sijhawm thiab thov cov neeg ntes

Lub hom phiaj tseem ceeb ntawm cov neeg tua hluav taws uas tsis yog kab tawm yog los tiv thaiv cov khoom siv hluav taws xob los ntawm huab cua lossishloov surges. Cov cuab yeej no belongs rau pab pawg ntawm cov khoom siv hluav taws xob siab.

Hauv cov khoom siv no tsis muaj ntu zoo li qhov sib txawv. Yog hais tias peb sib piv qhov ntau ntawm cov surge arrester thiab ib tug pa valve ntes, ces tus ntes muaj peev xwm tiv taus qhov tob voltage te. Lub luag haujlwm tseem ceeb ntawm cov cuab yeej no yog tiv taus cov khoom thauj no yam tsis muaj sijhawm txwv. Lwm qhov sib txawv tseem ceeb ntawm qhov surge arrester thiab cov pa valve yog qhov ntev, nrog rau lub cev hnyav ntawm cov qauv, qhov no yog qhov qis dua. Lub xub ntiag ntawm cov khoom xws li lub hau npog ua los ntawm cov plooj (porcelain) lossis polymers tau ua rau qhov tseeb tias sab hauv ntawm lub cuab yeej muaj kev ntseeg siab tiv thaiv los ntawm kev cuam tshuam ib puag ncig sab nraud.

OPN-10

Cov cuab yeej ntawm cov cuab yeej no txawv me ntsis ntawm cov pa surge arrester. Nyob rau hauv no embodiment, ib kem ntawm varistors yog siv, uas yog nyob rau hauv ib lub log tsheb. Txhawm rau tsim lub log tsheb, qhov no, tsis yog siv cov plooj (porcelain lossis polymers), tab sis cov yeeb nkab fiberglass, uas lub plhaub ntawm kev taug qab-tiv taus silicone roj hmab yog nias. Tsis tas li ntawd, kem ntawm varistors muaj txhuas txhuas, uas yog nias rau ntawm ob sab, thiab kuj screwed rau hauv cov yeeb nkab.

surge arrester opn 10
surge arrester opn 10

Surge arrester OPN-10 belongs rau pawg polymer ntawm cov khoom siv. Lub luag haujlwm tseem ceeb ntawm cov cuab yeej no yog kev tiv thaiv cov khoom siv hluav taws xob ntawm switchgears. Kuj tseem siv los tiv thaiv cov tes hauj lwm yog cov ntsiab lus nrog cov chav kawm ntawm 150 kV, nrog kev sib cais lossis them nyiaj nruab nrab. Koj tuaj yeem siv cov cuab yeej no sab nraum zoov hauv thaj chaw kub thiab txias. Kev khiav hauj lwm kub yog los ntawm rho 60 mus rau 60 degrees Celsius. Nws muaj peev xwm ua tiav kev teeb tsa, nrog rau kev ua haujlwm ntxiv ntawm cov cuab yeej, tsuas yog ua raws li cov cai tswj kev nyab xeeb.

Surge arrester OPS1

Series ntawm cov hluav taws xob hluav taws xob txwv OPS1 kuj tseem siv los tiv thaiv xob laim lossis hloov hluav taws xob. Xws li ib tug ntaus ntawv yog ntsia nyob rau hauv lub point ntawm input ntawm hluav taws xob lub zog rau cov khoom. Nws kuj tseem tuaj yeem ntsia tau rau ntawm cov tswv yim ntawm lub ntsiab switchboard ntawm qhov chaw.

surge arrester ops1
surge arrester ops1

Muaj ntau chav tiv thaiv. Chav kawm B yog siv los tiv thaiv hluav taws xob network los ntawm overvoltage tom qab hluav taws xob tawm tsam ncaj qha. Kev teeb tsa qhov chaw - ntawm qhov nkag mus rau lub tsev, ua ntej ASP.

Class C - tshwj xeeb hauv kev tiv thaiv cov khoom siv hluav taws xob ncaj qha los ntawm cov txheej txheem xws li cov seem hauv huab cua thiab hloov pauv. Qhov chaw teeb tsa ntawm lub limiter yog cov keyboards hauv zos.

Pom zoo: