Chitetezo Chotetezedwa SPD

Chitetezo Chotumphuka Chipangizo cha SPD chimatchulidwanso kuti arrester surgeon, Onse oteteza mafunde pacholinga chenicheni amakhala mtundu wosinthira mwachangu, ndipo wotetezera wotseguka amayambitsidwa mkati mwamphamvu yamagetsi. Pambuyo poyambitsidwa, gawo lopondereza la mtetezi ladzachotsedwa ku state ya impedance, ndipo L pole adzasandulika dziko lotsutsa. Mwanjira imeneyi, mphamvu yamagetsi yakomweko yamagetsi yamagetsi imatha kutuluka. Nthawi yonse yamagetsi, woteteza mafunde azikhala ndi magetsi pafupipafupi. Mpweya umenewu umatsimikizira kuti wotetezera nthawi zonse amakhala pano ndipo amatha kutulutsa mafunde apadziko lapansi bwinobwino. Mwanjira ina, otetezera otetezera amateteza zida zamagetsi zamagetsi ku zinthu zomwe zimachitika ndi mphezi, kusintha zochita pagulu la anthu, njira zowongolera magetsi, ndi mphamvu zina zopangidwa ndi zochitika zakanthawi kochepa zamkati ndi zakunja.

ntchito

Mphezi ili ndi ziwopsezo zoonekeratu ku chitetezo cha munthu ndipo imawopseza zida zosiyanasiyana. Kuwonongeka kwamagetsi okwera pazida sikuti kumangotsogolera mphezi zikuwomba. Mphezi zapafupipafupi zimawopseza kwambiri zida zamagetsi zamakono; Kumbali inayi, zochitika za mphezi patali ndi kutulutsa pakati pa mabingu zimatha kupanga mafunde olowera pamagetsi ndi maulalo azizindikiro, kuti zida zoyendera zachilendo. Kuthamanga ndi kufupikitsa moyo wa zida. Mphezi ikuyenda padziko lapansi chifukwa cha kupezeka kwa nthaka, komwe kumapangitsa mphamvu yayikulu. Mphamvu yamagetsi imeneyi imangoika pachiwopsezo zida zamagetsi komanso zimaika moyo wa anthu pachiwopsezo chifukwa chamagetsi.

Kukwera, monga dzinalo likusonyezera, ndi kuphulika kwakanthawi kopitilira kwamagetsi wamba. Mwakutero, woteteza othamanga ndiwukali womwe umachitika m'milioni ingapo yachiwiri ndipo ukhoza kuyambitsa mahule: zida zolemera, maseketi amafupikira, kusinthitsa magetsi, kapena injini zazikulu. Zida zomwe zili ndi ma surge arresters amatha kuyamwa mphamvu mwadzidzidzi kuti ateteze zida zolumikizidwa kuti zisawonongeke.

Mtetezi wotetezera, wotchedwanso womenyera mphezi, ndi chida chamagetsi chomwe chimapereka chitetezo chazida zamagetsi zamagetsi, zida, ndi kulumikizana. Pakachitika mwadzidzidzi kapena magetsi mwadzidzidzi pamagetsi amagetsi kapena njira yolumikizirana chifukwa chakusokonekera kwakunja, wotetezayo amatha kuyendetsa shunt munthawi yochepa kwambiri, potero amapewa kuwonongeka kwa zida zina m'chigawochi ndi mafunde.

Zofunikira Zathu

Mtetezi wotetezera amakhala ndi mayendedwe akulu, otsika otsalira amagetsi komanso nthawi yoyankha mwachangu;

Gwiritsani ntchito ukadaulo waposachedwa wazimitsa kuti mupewe moto;

Kutentha koteteza dera lokhala ndi chitetezo chokhazikika;

Ndi chiwonetsero chazomwe zikuwonetsa magwiridwe antchito a woteteza;

Kapangidwe kake ndi kolimba ndipo ntchitoyi ndiyokhazikika komanso yodalirika.

Mawu omaliza

1, Kuthetsa mpweya

Makonda otetezedwa amagwiritsidwa ntchito pazinthu zachitsulo komanso zitsulo zomwe zimavomereza mwachindunji kapena kupirira kuwombera kwa mphezi, monga ndodo za mphezi, malamba oteteza mphezi (mizere), maukonde oteteza mphezi, ndi zina zambiri.

2, Pansi kondakitala dongosolo

Woteteza pamalowo amalumikiza chitsulo cholandirira cholandiracho ndi chida chokhazikitsira pansi.

3, Earth kuchotsa dongosolo

Chiwerengero cha ma elekitirodi apadziko lapansi ndi wochititsa Earth.

4, Earth elekitirodi

Kondakitala wazitsulo wakwiriridwa pansi yemwe amalumikizana ndi dziko lapansi. Amadziwikanso kuti mzati. Mamembala azitsulo, zida zachitsulo, mapaipi achitsulo, zida zachitsulo, ndi zina zambiri zomwe zimalumikizana ndi dziko lapansi zitha kukhalanso ngati Earth electrode, yomwe imadziwika kuti Earth electrode yachilengedwe.

5, Wochititsa Earth

Lumikizani mawaya olumikizira kapena oyendetsa a chida chokhazikitsira kuchokera pamalo oyikira a zida zamagetsi kupita pamawaya olumikizira kapena oyendetsa a chida chokhazikitsira kuchokera pazinthu zachitsulo zomwe zimafunikira kulumikizana kwamphamvu, malo okwanira, maziko onse, maziko onse bar, ndikumangiriza kwamphamvu.

6, Kung'anima kung'anima

Mphezi zowongoka zimagunda pazinthu zenizeni monga nyumba, zida zapansi kapena zoteteza mphezi.

7, Kubwerera kumbuyo

Mphezi imadutsa pamalo oyala kapena poyatsira kuti isinthe kusintha kwa nthaka m'derali. Zoyeserera zapansi pazomwe zingayambitse zingayambitse kusintha kwa nthaka, zomwe zingawononge zida zamagetsi ndi zida zamagetsi.

8, Kuteteza mphezi (LPS)

Otetezera owonjezera amachepetsa kuwonongeka kwa mphezi ku nyumba, makhazikitsidwe, ndi zina zambiri, kuphatikiza zotetezera mphezi zakunja ndi zamkati.

8.1 Makina otetezera mphezi zakunja

Gawo loteteza mphezi lakunja kapena thupi la nyumba. Woteteza pafupipafupi nthawi zambiri amakhala ndi cholandirira mphezi, woyendetsa pansi ndi chida chokhazikitsira pansi kuti zisawombe mphezi.

8.2 Njira yotetezera mphezi

Gawo lotetezera mphezi mkati mwa nyumbayo (kapangidwe kake), woteteza mafunde nthawi zambiri amakhala ndi zida zomangirira, njira yokhazikika, zotchingira, zingwe zomveka, woteteza, etc., makamaka amagwiritsidwa ntchito pochepetsa ndi kuteteza mphezi zomwe Mphamvu yamagetsi imapanga malo oteteza.

Analysis

Masoka amphezi ndi amodzi mwa masoka achilengedwe oopsa kwambiri. Pali zovulala zosawerengeka komanso kuwonongeka kwa katundu komwe kumachitika chifukwa cha masoka amphezi chaka chilichonse padziko lapansi. Pogwiritsa ntchito zida zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi ndi zamagetsi, kuwonongeka kwa makina ndi zida zomwe zimayambitsidwa ndimagetsi ndi mphezi zamagetsi zamagetsi zikuwonjezeka. Chifukwa chake, ndikofunikira kwambiri kuthana ndi vuto la mphezi poteteza nyumba ndi makina azamagetsi posachedwa.

Kutulutsa kwa mphezi koteteza kumatha kuchitika pakati pamitambo kapena mitambo, kapena pakati pamitambo ndi nthaka; Kuphatikiza pa kuchuluka kwamkati komwe kumachitika chifukwa chogwiritsa ntchito zida zamagetsi zamagetsi zazikulu, magetsi (makina amagetsi a China otsika-magetsi: AC 50Hz 220 / 380V) komanso mphamvu zamagetsi ndi chitetezo kumagetsi ndi mphezi yakhala cholinga cha chidwi.

Mphezi pakati pa mtambo ndi nthaka ya wotetezerayo imakhala ndi mphezi imodzi kapena zingapo, iliyonse imakhala ndi mafunde akutali kwambiri osakhalitsa. Kutulutsa kwa mphezi kumaphatikizanso kuwomba kwa mphezi kawiri kapena katatu, pafupifupi gawo limodzi la makumi awiri mphambu imodzi pakati pa mphezi iliyonse. Mafunde ambiri amphezi amagwa pakati pa 10,000 ndi 100,000 amps, ndipo nthawi yawo imakhala yochepera ma microseconds 100.

Kugwiritsa ntchito zida zazikulu zamagetsi ndi zida zogwiritsira ntchito makina opangira magetsi kumabweretsa vuto lalikulu mkati. Timanena kuti izi zikuchitika chifukwa cha kuchuluka kwakanthawi (TVS). Mtundu wololeza wamagetsi wamagetsi ulipo pachida chilichonse chamagetsi. Nthawi zina ngakhale kugundana kwakanthawi kochepa kwambiri kumatha kuyambitsa mphamvu kapena kuwononga zida. Izi ndi zomwe zimawonongeka kwakanthawi kochepa (TVS). Makamaka pazinthu zina zamagetsi zamagetsi, nthawi zina kukwera pang'ono kumatha kuwononga.

Ndi zofunikira zowonjezereka zoteteza mphezi za zida zofananira, kukhazikitsidwa kwa Surge Protection Device (SPD) kupondereza ma surges ndi kupitilira kwakanthawi pamzere komanso kupitilira pa mzere wa bleeder kwakhala gawo lofunikira pakukonza zida zamakono mphezi. chimodzi.

1, mawonekedwe a mphezi

Kuteteza kwa mphezi kumaphatikizapo kuteteza kunja kwa mphezi ndi kuteteza mkati kwa mphezi. Kuteteza kwa mphezi yakunja kumagwiritsidwa ntchito popezera mphezi (ndodo zamphezi, maukonde oteteza mphezi, malamba oteteza mphezi, mizere yoteteza mphezi), oyendetsa pansi, ndi zida zoyikira. Ntchito yayikulu yoteteza kutetezera ndikuwonetsetsa kuti thupi limatetezedwa ku mphezi. Mphezi zomwe zitha kugunda nyumba zimatulutsidwa munthaka kudzera mu ndodo (ma lamba, maukonde, mawaya), otsitsa pansi, ndi zina zotero. Kuteteza kwa mphezi kumaphatikizapo kuteteza mphezi, mizere yolumikizana ndi nthaka, zolimbana ndi mphezi, kulowa kwa mphezi, ndi magetsi amagetsi komanso magetsi kupatsidwa ulemu. Njirayi ndiyotengera kulumikizana kwamaphunziro, kuphatikiza kulumikizana mwachindunji komanso kulumikizana kwachindunji kudzera mu SPD, kuti thupi lazitsulo, mzere wazida ndi dziko lapansi zipange thupi lokhala ndi zida zokwanira, ndipo zida zamkati zimatsekedwa ndikupangidwa ndi mphezi ndi ma surges ena. Mphezi kapena mafunde aposachedwa amatayidwa padziko lapansi kuteteza chitetezo cha anthu ndi zida mnyumbayi.

Mphezi imadziwika ndikutuluka kwamphamvu kwamagetsi (mkati mwa 10μs), mphamvu yayitali kwambiri (makumi masauzande mpaka mamilioni a volts), yayikulu pakali pano (makumi mpaka mazana a ma amp amp), ndi nthawi yayifupi (makumi mpaka ma microseconds)), liwiro lakutumiza ndilothamanga (limatumiza pa liwiro la kuwala), mphamvuyo ndi yayikulu kwambiri, ndipo ndiyomwe imawononga kwambiri pakati pama voltage oyenda.

2, gulu la oteteza othamanga

SPD ndichida chofunikira kwambiri poteteza mphezi pazida zamagetsi. Ntchito yake ndikuchepetsa kuthamanga kwamphamvu kwa chingwe cha magetsi ndikuwongolera mzere wamagetsi pamagetsi omwe zida kapena makina amatha kupirira, kapena kutulutsa mphezi zamphamvu pansi. Tetezani zida zotetezedwa kapena machitidwe ku zoopsa.

2,1 Kugwiritsa ntchito mfundo

Ogawidwa molingana ndi momwe amagwirira ntchito, SPD imatha kugawidwa m'mitundu yamagetsi yamagetsi, mtundu wamagetsi wamagetsi ndi mtundu wophatikiza.

(1) Voltage switch mtundu SPD. Pakakhala kupezeka kwanthawi yayitali, imawonetsa kuthamanga kwakukulu. Ikangoyankha kuphulika kwa mphezi kwakanthawi, impedance yake imasinthira mpaka kutsika pang'ono, kulola mphezi kupitilira, yomwe imadziwikanso kuti "mtundu wamafupipafupi wosinthira mtundu wa SPD".

(2) Kuchepetsa kuthamanga kwa SPD. Ngati kulibe kupitirira kwakanthawi kwakanthawi, ndimayendedwe apamwamba, koma pakukula kwamphamvu ndi mphamvu yamagetsi, mphamvu yake imapitilizabe kuchepa, ndipo mawonekedwe ake apano ndi magetsi amakhala opanda malire, nthawi zina amatchedwa "clamped type SPD".

(3) Ophatikiza SPD. Ndikophatikiza kwa gawo lamagetsi losinthira pamagetsi ndi gawo lochepetsera magetsi, lomwe lingathe kuwonetsedwa ngati mtundu wamagetsi kapena mtundu wamagetsi kapena zonse ziwiri, kutengera mawonekedwe amagetsi omwe agwiritsidwa ntchito.

2.2 Gulu ndi cholinga

Malinga ndi momwe amagwiritsira ntchito, SPD itha kugawidwa mu mzere wamagetsi wa SPD ndi mzere wazizindikiro wa SPD.

2.2.1 Mphamvu Mzere SPD

Popeza mphamvu ya mphezi ndi yayikulu kwambiri, ndikofunikira kuti pang'onopang'ono mphamvu yamphezi iwonongeke padziko lapansi kudzera pakukongoletsa. Ikani zotetezera zoteteza kapena zotetezera magetsi zomwe zimapititsa mayeso a Class I pamphambano ya malo otetezera mphezi (LPZ0A) kapena zone yoteteza mphezi (LPZ0B) ndi zone yoyamba yoteteza (LPZ1). Chitetezo choyambirira, chomwe chimatulutsa mphezi zowongoka, kapena kutulutsa mphamvu zochulukirapo pomwe chingwe chotumizira mphamvu chimayang'aniridwa ndi mphezi. Woteteza pakachepetsa mphamvu amaikidwa pamagawo amtundu uliwonse (kuphatikiza dera la LPZ1) kuseri kwa malo achitetezo achitetezo chachiwiri, chachitatu kapena chapamwamba. Mtetezi wachiwiri ndi chida chotetezera magetsi otsalira a pre-site protector ndi kuwomba kwa mphezi m'deralo. Kutenga kwa mphezi kwa gawo lamtsogolo ndikokulira, magawo ena amakhalabe okulira pazida kapena mtetezi wachitatu. Mphamvu yomwe imafalitsidwayo ifunikira kuyamwa kwina ndi woteteza gawo lachiwiri. Nthawi yomweyo, kufalikira kwa gawo loyambira mphezi kumathandizanso kuyatsa kwa magetsi. Mzerewo utakhala wokwanira, mphamvu ya mphezi imakulira mokwanira, ndipo woteteza mulingo wachiwiri amafunika kuti magazi aziwonjezekanso. Gawo lachitatu loteteza limateteza mphamvu zotsalira za mphezi kudzera pagawo lachiwiri loteteza. Malinga ndi mphamvu yamagetsi yolimbana ndi zida zotetezedwazo, ngati chitetezo chamiyendo iwiri chitha kukwaniritsa mphamvu yamagetsi pamunsi pamagetsi azida, pamafunika magawo awiri okha achitetezo; ngati zida zitha kupirira mphamvu yamagetsi ndiyotsika, zitha kufuna magawo anayi kapena Kutetezedwa.

Sankhani SPD, muyenera kumvetsetsa magawo ena ndi momwe amagwirira ntchito.

(1) Mafunde 10 / 350μs ndi mawonekedwe amtundu womwe umafanana ndi kuwomba kwachiphaliwali, ndipo mphamvu yamafunde yayikulu; funde la 8 / 20μs ndi mawonekedwe amawu omwe amafanizira kulowetsa mphezi ndi kuyendetsa mphezi.

(2) Kutulutsa komwe kumatchulidwa pano Mukutanthauza pachimake pakali pano chomwe chikuyenda mu SPD ndi 8/20 μs mawonekedwe apano.

(3) Kutulutsa kwakukulu kwa Imax, komwe kumadziwikanso kuti kuthamanga kwambiri, kumatanthawuza kutulutsa kwaposachedwa kwambiri komwe kumatha kutsutsidwa ndi SPD ndimafunde apano a 8 / 20μs.

(4) Kutalika kopitilira muyeso kwamagetsi a Uc (ma rms) amatanthauza ma voliyumu azama AC kapena ma DC omwe atha kugwiritsidwa ntchito ku SPD.

(5) Mphamvu zotsalira za Uri zimatanthauza kutsalira kwakanthawi kotsitsimula komwe kumavoteledwa pakali pano.

(6) Mphamvu yodzitetezera imadziwika ndi mawonekedwe am'magawo amkati mwa malire a SPD, ndipo phindu lake limatha kusankhidwa pamndandandanda wazikhalidwe zomwe zikukondedwa, zomwe ziyenera kukhala zazikulu kuposa mtengo wamagetsi.

(7) Mtundu wamagetsi wamagetsi wa SPD amatulutsa ma 10 / 350μs pakali pano, ndipo mtundu wa SPD womwe umachepetsa kwambiri umatulutsa mafunde 8 / 20μs apano.

2.2.2 Chizindikiro cha SPD

Chizindikiro cha SPD kwenikweni chimakhala chiphaliwali chomangirira chomwe chimayikidwa mu chingwe chotumizira ma siginolo, makamaka kumapeto kwa chipangizocho, kuteteza zida zotsatirazi ndikuletsa mafunde amagetsi kuti asakhudze chiwonetserocho.

1) Kusankhidwa kwa mulingo wamagetsi (Pamwamba)

Mtengo wa Up sayenera kupitilira kuchuluka kwamagetsi pazida zotetezedwa. Up imafuna kuti SPD ifanane bwino ndi kutchinjiriza kwa zida zomwe zikutetezedwa.

Magetsi ndi magawidwe amagetsi otsika kwambiri, zida zimayenera kukhala ndi kuthekera kothana ndi mafunde, ndiye kuti, kutha kuthana ndi mantha komanso kuphulika. Mtengo wokhudzidwa kwakukulu wa zida zosiyanasiyana za 220 / 380V magawo atatu sangapezeke, amatha kusankhidwa molingana ndi ziwonetsero za IEC 60664-1.

2) Kusankhidwa kwa kutulutsa mwadzina kwamakono mu (mphamvu yotulutsa mphamvu)

Pachimake chamakono chomwe chikuyenda kudzera mu SPD, 8/20 μs mawonekedwe apano. Amagwiritsidwa ntchito poyesa gulu la II lachiwiri la SPD komanso kuyesereranso kwa SPD kwamayeso a Class I ndi Class II.

M'malo mwake, Mukukhala ndi chiwongola dzanja chapamwamba kwambiri chomwe chikhoza kupitilira nthawi zingapo (nthawi zambiri 20) ndi mawonekedwe amawu (8/20 μs) osawononga kwambiri SPD.

3) Kusankhidwa kwazomwe zilipo pakali pano Imax (malire otaya mphamvu)

Kutalika kwaposachedwa kwambiri komwe kukuyenda mu SPD, 8/20 μs wave wave, kumagwiritsidwa ntchito poyesa gulu la Class II. Imax ili ndi zofanana zambiri ndi In, zomwe zimagwiritsa ntchito mawonekedwe apamwamba a 8/20 μs pakadali pano kuti apange mayeso a Class II pa SPD. Kusiyanaku ndikuwonekeranso. Imax imangoyesa mayeso pa SPD, ndipo SPD siyimayambitsa kuwonongeka kwakukulu pambuyo pa mayeso, ndipo In itha kuchita mayeso ngati 20, ndipo SPD siyitha kuwonongedwa kwambiri mayeso atatha. Chifukwa chake, Imax ndiye malire azomwe zikuchitika pakadali pano, chifukwa chake kutulutsa kwakanthawi kambiri kumatchedwanso kutseguka kopitilira muyeso. Mwachidziwikire, Imax> In.

mfundo yogwira ntchito

Chitetezo cha Surge Protection ndichida chofunikira kwambiri poteteza mphezi pazida zamagetsi. Amadziwika kuti "arrester" kapena "overvoltage protector". Chingerezi chidule ngati SPD. Udindo wa wotetezera kuthamanga ndikutulutsa kwakanthawi kochepa pamzere wamagetsi ndipo chingwe chotsatsira ma siginolo chimangokhala pamagetsi omwe zida kapena dongosolo limatha kupirira, kapena mphezi yamphamvu imaponyedwa pansi kuteteza zida zotetezedwa kapena dongosolo kuchokera pakukhudzidwa ndi kuwonongeka.

Mtundu ndi kapangidwe ka chitetezo chotetezera chimasiyana malinga ndi momwe amagwiritsidwira ntchito, koma iyenera kukhala ndi gawo limodzi lokhazikika lamagetsi. Zomwe zimagwiritsidwa ntchito poteteza otulutsidwa zimatuluka pakatikati, chubu chodzaza mpweya, varistor, diode yoletsa kupondereza komanso choli choke.

Gawo loyambira

1. Kutaya gawo (lomwe limadziwikanso kuti chitetezo):

Nthawi zambiri amapangidwa ndi ndodo zazitsulo ziwiri zomwe zimasiyanitsidwa ndi mpata wina womwe umalumikizidwa ndi mpweya, umodzi umalumikizidwa ndi gawo lamagetsi lamagetsi L kapena mzere wosalowerera ndale (N) wachida chofunikira chachitetezo, ndi ndodo ina yazitsulo ndi mzere wapansi (PE) umalumikizidwa. Kukhalitsa kwaposachedwa kwakanthawi kukuchitika, phompho limathyoledwa, ndipo gawo lina la chiwongola dzanja chimayambitsidwa padziko lapansi, lomwe limapewa kukwera kwamagetsi pazida zotetezedwa. Mtunda wapakati pazitsulo zazitsulo ziwiri zotulutsidwazo zitha kusinthidwa momwe zingafunikire, ndipo kapangidwe kake ndikosavuta, ndipo choyipa ndichakuti kuzimitsa arc ndikosavuta. Kusiyana kotulutsa bwino ndikubowoleza, ndipo ntchito yake yozimitsa arc ndiyabwino kuposa yakale. Zimachitika chifukwa cha mphamvu yamagetsi F yazungulira komanso kukwera kwa mpweya wotentha kuzimitsa arc.

2. chubu losautsa mpweya:

Amakhala ndi mbale zozizira zopanda pake zomwe zimasiyanitsidwa ndikutsekera mu chubu lagalasi kapena ceramic chubu yodzaza ndi mpweya winawake (Ar). Pofuna kukulitsa kuthekera kwa chubu chotulutsira, chida choyambitsa chimaperekedwanso mu chubu chotulutsa. Mtundu uwu wa chubu chodzaza mpweya umakhala ndi mitundu iwiri yamitengo ndi mitundu itatu yamitengo.

Magawo aluso a chubu otulutsa gasi ndi awa: DC kumaliseche kwamagetsi Udc; kugwedezeka kotulutsa mphamvu Pamwamba (Nthawi zambiri, Up≈ (2 ~ 3) Udc; mafupipafupi amagetsi amalimbana pakali pano; kukakamira kupirira Ip yapano; kutchinjiriza kukana R (> 109Ω)); mphamvu zamagetsi zamagetsi (1-5PF)

Tepu yotulutsa mpweya itha kugwiritsidwa ntchito pansi pa DC ndi AC. Mphamvu yosankhidwa ya DC yotulutsa Udc ili motere: Gwiritsani ntchito pansi pa DC: Udc≥1.8U0 (U0 ndiye DC yamagetsi kuti mzere ugwire bwino ntchito)

Gwiritsani ntchito pamikhalidwe ya AC: U dc ≥ 1.44Un (Un ndiye kuchuluka kwama rms amagetsi a AC kuti agwiritse ntchito bwino mzere)

3. Wosintha:

Ndi cholumikizira chachitsulo chosakaniza semiconductor varistor ndi ZnO monga gawo lake lalikulu. Mphamvu yamagetsi yomwe imagwiritsidwa ntchito kumapeto onse awiri ikafika pamtengo winawake, kulimbikira kumakhala kovuta kwambiri pamagetsi. Mfundo zake zogwirira ntchito ndizofanana ndi mndandanda komanso kulumikizana kofananira kwa ma semiconductor PN angapo. The varistor imadziwika ndi mawonekedwe osasunthika (I = CUcy, α ndi coefficient yopanda malire), kuthamanga kwakukulu (~ 2KA / cm2), kutsika kwaposachedwa kwaposachedwa (10-7 ~ 10-6A), zotsalira zazing'ono zamagetsi (kutengera Pa mu varistor opareshoni yamagetsi ndimphamvu yamagetsi), nthawi yoyankhira pakutha kwakanthawi kothamanga ndiyachangu (~ 10-8s), yopanda freewheeling.

Magawo aluso a varistor ndi ma varistor voltage (ie kusintha kwamagetsi) UN, voltage voltage Ulma; yotsalira voteji Ures; kuchuluka kotsalira kwamagetsi K (K = Ures / UN); pazipita otaya mphamvu Imax; kutayikira kwamakono; nthawi yoyankhira.

The varistor imagwiritsidwa ntchito motere: varistor voltage: UN ≥ [(√ 2 × 1.2) / 0.7] U0 (U0 ndiye mphamvu yamagetsi yamagetsi yamagetsi yamagetsi)

Ma voliyumu osachepera: Ulma 1.8 (2 ~ XNUMX) Uac (yogwiritsidwa ntchito munthawi ya DC)

Ulma 2.2 (2.5 ~ XNUMX) Uac (yogwiritsidwa ntchito munthawi ya AC, Uac ndimagetsi ogwiritsira ntchito AC)

Kutalika kwakukulu kwamagetsi kwa varistor kuyenera kutsimikiziridwa ndi mphamvu yamagetsi yamagetsi otetezedwa. Mphamvu yotsalira ya varistor iyenera kukhala yocheperako kuposa yamagetsi amagetsi otetezedwa, mwachitsanzo (Ulma) max≤Ub / K. Komwe K ndiye kuchuluka kwama voliyumu otsalira ndipo Ub ndiye mphamvu yowonongeka yamagetsi otetezedwa.

4. Kupondereza diode:

The diode yopondereza ili ndi vuto lochepa. Imagwira m'chigawo chosokonekera. Chifukwa cha kuchepa kwamphamvu kwamagetsi komanso kuyankha mwachangu, ndioyenera kugwiritsidwa ntchito ngati zida zomaliza zomenyera m'mabwalo otetezera osiyanasiyana. Chizindikiro cha volt-ampere cha diode yopondereza mdera lomwe lingawonongedwe chitha kufotokozedwa ndi njira zotsatirazi: I = CUα, pomwe α ndi chokwanira chosakwanira, cha Zener diode α = 7 ～ 9, mu diode ya diode α = 5 ～ 7.

Kupondereza ma diode magawo

(1) Kuwonongeka kwamagetsi, komwe kumatanthawuza kuwonongeka kwamagetsi pakasinthidwe komwe kamasinthidwa (nthawi zambiri 1ma), kamene kamakhala pakati pa 2.9V mpaka 4.7V wama diode a Zener, komanso kuwonongeka kwa ma diode avalanche. Mphamvu yamagetsi nthawi zambiri imakhala pakati pa 5.6V mpaka 200V.

(2) Mphamvu yamagetsi yayikulu: Imatanthawuza mphamvu yamagetsi yomwe imawonekera kumapeto onse a chubu ikadutsa mawonekedwe akulu amtundu wa wave.

(3) Mphamvu yamagetsi: Imatanthawuza kutulutsa kwa mphamvu yayikulu yamagetsi kumapeto onse a chubu ndi zofanana pakali pano mu chubu pansi pa mawonekedwe amtundu wamakono (mwachitsanzo, 10/1000 μs).

(4) Mphamvu yamagetsi yosinthira: Imatanthawuza mphamvu yamagetsi yomwe ingagwiritsidwe ntchito kumapeto onse a chubu m'malo otayikira, pomwe chubu sichiyenera kuwonongeka. Mphamvu yamagetsi yosinthirayi iyenera kukhala yayikulu kwambiri kuposa yayikulu kwambiri yamagetsi yamagetsi yotetezedwa, mwachitsanzo, siyingakhale yoperewera panthawi yogwirira ntchito.

(5) Kutulutsa kwaposachedwa kwakukulu: Zimatanthawuza pazomwe zimasinthiratu zomwe zikuyenda kudzera mu chubu pansi pamagetsi osunthira kumbuyo.

(6) Nthawi yoyankha: 10-11s

5. Chitsulo chosokera:

Chophimbira chotchinga ndichizolowezi chosokoneza choletsa ndi ferrite monga pachimake. Imavulazidwa mozungulira pamtundu womwewo wa ferrite toroidal ndi ma coil awiri ofanana ndikutembenuka komweko. Kuti mupange chida chonyamula anayi, ndikofunikira kupondereza kutulutsa kwakukulu kwa chizolowezi chofala, ndipo sichimakhudza kwenikweni kusiyanasiyana kwa chizindikirocho. Koyilo kotsamira kumatha kupondereza chizolowezi chododometsa chofananira (monga kusokoneza kwa mphezi) mu mzere woyenera koma sichikhudzanso mawonekedwe amtundu wosiyanitsa womwe mzerewo umafalitsa.

Chophimbacho chimayenera kukwaniritsa zofunikira izi zikapangidwa:

1) Mawaya omwe amalumikizidwa pakatikati pa koyilo amayenera kutsekedwa wina ndi mzake kuti awonetsetse kuti sipadzawonongeka nthawi yayitali pakati pa kutembenuka kwa kolowera posakhalitsa.

2) Chophimbacho chikamadutsa pakamphindi kakang'ono kamodzi, pachimake sikuwoneka kuti kadzaza.

3) Phata la koyilo liyenera kutetezedwa kuchokera koyilo kuti lisawonongeke pakati pa ziwirizi mosachedwa.

4) Choyikiracho chiyenera kuvulazidwa momwe zingathere, zomwe zimatha kuchepetsa mphamvu yama parasitic ya koyilo ndikupangitsa kuti coilyo izitha kuphulika nthawi yomweyo.

6. 1/4 kutalika kwa kutalika kwazungulira

Chingwe cha 1/4 wavelength crowbar ndichotetezera ma microwave chomwe chimateteza potengera kuwunika kwamphamvu kwa mphezi komanso lingaliro loyimirira la wodyetsa ma antenna. Kutalika kwa kapamwamba kazitsulo kazitsulo mumtetemuyi kumadalira pafupipafupi zamagetsi (mwachitsanzo 900 MHz kapena 1800 MHz). Kukula kwa kutalika kwa 1/4 kutsimikizika. Kutalika kofananira kwa bar kumakhala ndi kutha kwamuyaya kwamphamvu zamagetsi zogwirira ntchito, zomwe zikufanana ndi dera lotseguka ndipo sizimakhudza kufalikira kwa chizindikirocho. Komabe, kwa mafunde amagetsi, popeza mphamvu ya mphezi imagawidwa makamaka pansipa n + KHZ, bala yoperewera ya mphezi yamagetsi ndi yaying'ono, yofanana ndi dera lalifupi, mphamvu yamagetsi imatulutsidwa pansi.

Popeza m'mimba mwake mulifupi mwa 1/4 wavelength shorting bar nthawi zambiri mumakhala mamilimita ochepa, momwe kukana kwaposachedwa kuli bwino, ndipo kumatha kufikira 30KA (8 / 20μs) kapena kupitilira apo, mphamvu yotsalira ndiyochepa. Mphamvu yotsalirayi imayambitsidwa chifukwa chodzipangira nokha. Chosowacho ndichakuti gulu lamagetsi ndilopapatiza ndipo bandwidth ili pafupifupi 2% mpaka 20%. Choyipa china ndikuti kukondera kwa DC sikungagwiritsidwe ntchito kwa wodyetsa ma antenna, omwe amalepheretsa ntchito zina.

Dera loyambira

Dera la chitetezo chotetezera limakhala ndi mitundu yosiyanasiyana kutengera zosowa zosiyanasiyana. Zida zoyambira ndizo mitundu ingapo yomwe yatchulidwa pamwambapa. Wofufuza wodziwika bwino wazoteteza mphezi amatha kupanga ma circuits osiyanasiyana, monga bokosi lamabokosi lingagwiritsidwe ntchito. Mapangidwe osiyanasiyana. Ndiudindo wa ogwira ntchito yoteteza mphezi kupanga zinthu zomwe ndizothandiza komanso zotsika mtengo.

Chitetezo chokhazikika

Woyimitsa mphezi woyamba kutseka magazi amatha kutulutsa magazi ngati mphezi pakadali pano kapena kutuluka magazi pomwe chingwe chotumizira mphamvu chimayang'aniridwa ndi mphezi. Kwa malo omwe mphezi zingachitike, KALASI-I ziyenera kuchitidwa. Kuteteza mphezi. Wachiwiri womenyera mphezi ndi chida chotetezera magetsi otsalira a chida chakuteteza kumapeto kwa mphezi komanso kuwomba kwa mphezi m'derali. Pakakhala kuyamwa kwamphamvu kwa mphezi kutsogolo, pamakhala gawo lina lazida kapena chida chachitatu choteteza mphezi. Ndi mphamvu yayikulu kwambiri yomwe ingafalitsidwe ndipo imafunikira womangidwa wachiwiri kuti ayambe kuyamwa. Nthawi yomweyo, mzere wamagetsi wamagetsi oyambitsanso gawo loyambilira upangitsanso mphenzi kutulutsa ma radiation a magetsi LEMP. Mzerewo utakhala wokwanira, mphamvu ya mphezi imakulira mokwanira, ndipo chida chachitetezo chachiwiri cha mphezi chimafunikira kupititsa patsogolo mphamvu ya mphezi. Wachitatu wamphezi womanga amateteza LEMP ndi mphamvu zotsalira za mphezi kudzera pagawo lachiwiri la mphezi.

Kuteteza koyamba

Cholinga cha woteteza mafunde ndikuletsa kuti mafunde akuyenda molunjika kuchokera kudera la LPZ0 kupita kudera la LPZ1, kumachepetsa mphamvu yamagetsi yamagetsi masauzande masauzande mpaka ma volts zikwi mazana ambiri mpaka 2500-3000V.

Mtetezi wotetezedwa womwe udayikidwa pambali yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi yamagetsi. Kutuluka kwa mphezi sikuyenera kutsika kuposa 60KA. Mphamvu yomanga mphezi womanga mkalasiyi idzakhala yayikulu-yamagetsi yamagetsi yolumikizidwa pakati pazigawo zolowera zamagetsi zamagetsi ndi dziko lapansi. Nthawi zambiri pamafunika kuti woteteza mphamvu mkalasi azikhala ndi mphamvu zopitilira 100KA pagawo lililonse, ndipo mphamvu yamagetsi yofunikira ndiyotsika 1500V, yomwe imadziwika kuti CLASS I power surge mtetezi komanso woteteza. Zapangidwa kuti zitha kulimbana ndi mafunde othamanga ndi mphezi, komanso kuti zikope mphamvu zamagetsi, omanga maelekitiromafewa amatseketsa mafunde ambiri pansi. Amangopereka mphamvu yochepetsera (yamagetsi yayikulu kwambiri yomwe imawonekera pamzere pomwe kulowererapo kukuyenda pagalimoto yamagetsi yotchedwa mphamvu yochepetsera). Woteteza wa CLASS Class I amagwiritsidwa ntchito kwambiri kuyamwa mafunde akuluakulu, koma Sangathe kuteteza zida zamagetsi zamagetsi mkati mwa magetsi.

Woteteza pamlingo woyamba akhoza kuteteza motsutsana ndi 10 / 350μs ndi mafunde a mphezi a 100KA ndikukwaniritsa miyezo yotetezedwa kwambiri yolembedwa ndi IEC. Malingaliro aukadaulo ali motere: kuthamanga kwa mphezi ndikokulirapo kuposa kapena kofanana ndi 100KA (10 / 350μs); mphamvu yotsalira siyoposa 2.5KV; nthawi yoyankha ndi yochepera kapena yofanana ndi 100ns.

Chitetezo chachiwiri

Cholinga cha woteteza mafunde ndikuchepetsa mphamvu zotsalira zotsalira kudzera pamakina oyamba amphezi mpaka 1500-2000V ndikulumikiza LPZ1-LPZ2 mwamphamvu.

Mphamvu yomanga mphezi yotulutsidwa ndi mzere wogawana nduna idzakhala chida chochepetsera magetsi ngati chitetezo chachiwiri. Mphamvu zaposachedwa mphezi sizikhala zochepa kuposa 20KA. Idzayikidwa pamagetsi yamagetsi ofunikira kapena ofunika. Malo ogawa misewu. Ogwiritsira ntchito magetsiwa amapereka kuyamwa kwabwino kwa mphamvu yotsalira kudzera mwa wogwira ntchitoyo pamakina ogwiritsira ntchito makasitomala ndikukhala ndi mwayi wopitilira nthawi yayitali. Mphamvu yamagetsi yomwe imagwiritsidwa ntchito m'derali imafunikira mphamvu yayikulu ya 45kA kapena kupitilira apo, ndipo mphamvu yamagetsi yofunikira iyenera kukhala yochepera 1200V, yomwe imadziwika kuti KALASI II magetsi arrester. Makina ogwiritsa ntchito magetsi onse amatha kukwaniritsa chitetezo chachiwiri kuti akwaniritse zofunikira zamagetsi.

Woteteza gawo lachiwiri lamagetsi amatenga woteteza Mkalasi C poteteza gawo, gawo-lapansi komanso chitetezo chapakatikati. Njira zazikulu zaukadaulo ndi izi: kuthamanga kwa mphezi kwakukulu kuposa kapena kofanana ndi 40KA (8 / 20μs); yotsalira voteji Mtengo pachimake si oposa 1000V; nthawi yoyankhira siyoposa 25ns.

Chitetezo chachitatu

Cholinga cha wotchinjiriza ndikuteteza zida zake pomachepetsa mphamvu yotsalira yotsika mpaka 1000V kuti mphamvu zowonjezerazo zisawononge zida.

Chida choteteza mphezi chikayikidwa kumapeto kwa mphamvu zamagetsi zamagetsi zamagetsi zamagetsi zikagwiritsidwa ntchito ngati gawo lachitatu lotetezera, zidzakhala zida zotetezera mphezi, komanso mphezi mphamvu zamakono sizikhala zochepa kuposa 10KA.

Mzere womaliza woteteza wotetezedwa ukhoza kugwiritsidwa ntchito ndi wotetezera mphamvu wowonjezerapo mphamvu yamagetsi yamkati mwa wogula kuti athetseretu kuchuluka kwakanthawi kwakanthawi. Mphamvu yamagetsi yomwe imagwiritsidwa ntchito pano imafunikira mphamvu yokwanira 20KA kapena yocheperako pagawo lililonse, ndipo mphamvu yochepetsera yomwe ikufunika iyenera kukhala yochepera 1000V. Ndikofunikira kukhala ndi gawo lachitatu la chitetezo kwa zida zamagetsi zofunika kwambiri kapena zovuta kuzimvetsetsa, komanso kuteteza zida zamagetsi kuzinthu zosakhalitsa zomwe zimapangidwa m'dongosolo.

Pamagetsi operekera magetsi omwe amagwiritsidwa ntchito mu zida zoyankhulirana zama microwave, zida zoyankhulira mafoni ndi zida za radar, ndikofunikira kusankha DC magetsi oteteza mphezi ndimasinthidwe amagetsi ngati gawo lomaliza lotetezedwa malinga ndi chitetezo chamagetsi ake.

Mulingo wa 4 ndi pamwambapa

Wotetezera wotetezedwa molingana ndi mulingo wamagetsi pazida zotetezedwa, ngati chitetezo chamiyendo iwiri chitha kukwaniritsa mphamvu yamagetsi pamunsi pamagetsi olimbanirana ndi chidacho, chimangofunika magawo awiri otetezera, ngati zida zingathe kupirira magetsi Mulingo ndi wotsika, pangafunike magawo anayi kapena kupitilira chitetezo. Kuteteza kwa gawo lachinayi la kuthamanga kwake kwa mphezi sikuyenera kukhala kotsika kuposa 5KA.

Njira yosungira

1, zofunikira zowonjezera za SPD

Mtetezi wotetezedwa amaikidwa ndi 35mm njanji yokhazikika

Kwa ma SPD okhazikika, zotsatirazi ziyenera kutsatiridwa pakuyika pafupipafupi:

1) Tsimikizani njira yomwe ikuyandikira

2) Chongani waya chifukwa chotsitsa kwamagetsi owonjezera omwe adachitika pamalo osungira zida.

3) Pofuna kupewa malupu olowerera, chongani ochititsa wa PE pachida chilichonse.

4) Pangani mgwirizano wolumikizana pakati pa chipangizocho ndi SPD.

5) Kugwirizanitsa kugwirizanitsa mphamvu kwa SPD yamagulu angapo

Pofuna kuchepetsa kulumikizana kophatikizika pakati pa gawo lotetezedwa ndi gawo losatetezedwa la chipangizocho, miyezo ina imafunika. Kulimbikitsana kumatha kuchepetsedwa ndikulekanitsa gwero lakuzindikira kuchokera kumalo operekera nsembe, kusankha kwa mbali yolumikizira, komanso kuchepa kwa dera lotsekedwa.

Chowongolera chomwe chikugwiritsidwa ntchito pakadali pano ndichotseka, kutulutsa ndi kuyambitsa kwamagetsi kumachepetsedwa pamene woyendetsa amayandikira dera.

Mwambiri, ndibwino kulekanitsa waya wotetezedwa ndi waya wopanda chitetezo ndipo uyenera kupatukana ndi waya wapansi. Nthawi yomweyo, kuti mupewe kulumikizana kwakanthawi pakati pazingwe zamagetsi ndi chingwe cholumikizirana, zofunikira ziyenera kupangidwa.

2, SPD yosankha waya m'mimba mwake

Mzere wazidziwitso: Chofunikira ndichapamwamba kuposa 2.5mm²; kutalika kukadutsa 0.5m, kumafunika kuposa 4mm².

Powerline: Pamene gawo mzere mtanda yachigawo S≤16mm², mzere wapansi umagwiritsa ntchito S; gawo la magawo awiri ndi 16mm²Lumikizanani nafe², mzere wapansi umagwiritsa ntchito 16mm²; gawo laling'ono laling'ono la magawo S≥35mm², mzere wapansi umafuna S / 2.

Zofunika kwambiri

1. Mwadzina voteji Un: The voteji oveteredwa a dongosolo kuteteza ndi zogwirizana. Muukadaulo wazidziwitso, gawo ili likuwonetsa mtundu wa woteteza womwe uyenera kusankhidwa, womwe umawonetsa kufunikira kwa magetsi a AC kapena DC.

2. Mphamvu yamagetsi Uc: itha kugwiritsidwa ntchito kumapeto kwa chitetezo kwa nthawi yayitali osayambitsa kusintha kwa woteteza ndikuyambitsa mphamvu yamagetsi yamagetsi yoteteza.

3. Adavotera kutulutsidwa kwapano kwa Isn: Kutalika kwakukulu pakadali pano komwe wotetezayo amalekerera pamene mafunde oyenda ofanana ndi mawonekedwe amtundu wa 8/20 μs agwiritsidwa ntchito kwa woteteza kangapo.

4. Kutulutsa kwakukulu kwa Imax pakadali pano: Kutalika kwakukulu kwakanthawi komwe wotetezayo amalekerera pamene funde lofananira ndi mphepo ya 8/20 μs imagwiritsidwa ntchito kwa wotetezayo.

5. Mulingo wachitetezo cha Voltage Up: Mtengo wokwanira wa woteteza pamayeso otsatirawa: mphamvu yamagetsi yotsetsereka ya 1KV / μs; mphamvu yotsalira yamagetsi yomwe idavoteledwa pano.

6. Nthawi yoyankhira tA: Kutha kwazinthu ndikuwonongeka kwa gawo lachitetezo makamaka lomwe likuwonetsera mwa wotetezayo, ndikusintha kwakanthawi kumadalira kutsetsereka kwa du / dt kapena di / dt.

7. Kutumiza kwa data Vs: kumawonetsa kuchuluka kwa zinthu zomwe zimafalikira pakamphindi kamodzi, unit ndi: bps; ndikutanthauzira kwa chida choteteza mphezi chosankhidwa bwino munjira yotumizira deta, ndipo kuchuluka kwa kachipangizo kamene kamagwiritsira ntchito mphezi kumadalira njira yofalitsira yamtunduwu.

8. Kuika kutayika Ae: The ratio of the voltage before and after the protector is inserted at a given frequency.

9. Bweretsani Kutayika Ar: Ikuwonetsa kuchuluka kwa mafunde oyenda mozungulira omwe akuwonetsedwa ndi chida chachitetezo (chinyezimiro), chomwe ndi chizindikiro chomwe chimayang'ana mwachindunji ngati chida chotetezera chikugwirizana ndi dongosolo la impedance.

10. Kutulutsa kwakutali kwambiri kwaposachedwa: kumatanthawuza kufunikira kwakumtunda kwakanthawi kwambiri komwe wotetezerayo amakhala nako pamene mphezi yofananira ndi mawonekedwe a 8 / 20μs agwiritsidwa ntchito pamtunda uliwonse.

11. Kutulutsa kotsika kwambiri pakadali pano: Kutalika kwakukulu kwakanthawi komwe wotetezayo amakumana nako pamene mphezi yofananira ndi mawonekedwe amtundu wa 8 / 20μs imagwiritsidwa ntchito pakati pa mzere ndi mzere.

12. Impedance yapaintaneti: amatanthauza kuchuluka kwa kusokonekera komanso kuyambitsanso kwazomwe zimayenda mozungulira chotetezera pansi pamagetsi amtundu wa Un. Nthawi zambiri amatchedwa "kusokoneza dongosolo."

13. Kutulutsa kwaposachedwa kwaposachedwa: Pali mitundu iwiri: kutulutsa kwaposachedwa kwa Isn komanso kutulutsa kwakukulu kwa Imax.

14. Kutulutsa kwapompopompo: kumatanthauza DC yomwe ikuyenda modutsa pamphamvu yamagetsi Un ya 75 kapena 80.

Amagawidwa pogwiritsa ntchito mfundo

1. Sinthani mtundu: Mfundo yogwirira ntchito yotchinjiriza mafunde ndiyokwera kwambiri ngati sipangakhale kuphulika kwakanthawi, koma ikangoyankha kuphulika kwa mphezi, kusokonekera kwake kumasintha mwadzidzidzi kukhala kotsika, kulola mphenzi kupitilira. Pogwiritsidwa ntchito ngati chida chotere, chipangizocho chimakhala ndi: mpata wotulutsa, chubu yotulutsa mpweya, thyristor, ndi zina zotero.

2. Mtundu wochepetsera mphamvu zamagetsi: Njira yogwirira ntchito yotchinjiriza mafunde ndiyokwera kwambiri ngati kulibe kupitirira kwakanthawi, koma kutsekeka kwake kumachepa mosalekeza ndikuwonjezeka kwamphamvu kwamphamvu ndi ma voliyumu, ndipo mawonekedwe ake amakono ndi ma voliyumu alibe malire. Zipangizo zomwe zimagwiritsidwa ntchito ngati izi ndi izi: zinc oxide, varistors, ma diode opondereza, ma diode avalanche, ndi zina zotero.

3. Kugawa kapena chipwirikiti:

Mtundu wa Shunt: Mofananamo ndi chida chotetezedwa, chikuwonetsa kutsika pang'ono pamphamvu ya mphezi komanso kutchinga kwakukulu pamachitidwe pafupipafupi.

Mtundu wachipwirikiti: Pamndandanda ndi chida chotetezedwacho, imawonetsa kuthamanga kwamphamvu pamphezi komanso kutulutsa kocheperako pafupipafupi.

Zipangizo zomwe zimagwiritsidwa ntchito ngati izi ndi izi: ma coil otsinitsa, zosefera zapamwamba, zosefera zochepa, zazifupi zazifupi zazifupi, ndi zina zotero.

Kugwiritsa ntchito Chipangizo cha Surge Protection SPD

(1) Woteteza mphamvu: AC oteteza mphamvu, DC oteteza mphamvu, kusinthitsa mphamvu yoteteza, etc.

Gawo lachitetezo cha mphezi la AC ndiloyenera kutetezera magetsi pazipinda zamagetsi, makabati ogawa magetsi, kusintha makabati, magawidwe amagetsi a AC / DC, ndi zina zambiri.

Pali mabokosi ogawira panja ndi mabokosi ogawira nyumba mnyumbayi;

Kwa ma voliyumu otsika (220 / 380VAC) grids yamagetsi yamagetsi ndi ma grids amagetsi;

Mu dongosolo lamagetsi, limagwiritsidwa ntchito kulowetsa kapena kutulutsa mphamvu yamagawo atatu pazenera lamagetsi la chipinda chachikulu chowongolera chipinda chama makina kapena chosinthira.

Oyenera machitidwe osiyanasiyana a DC, monga:

Gulu logawira magetsi la DC;

DC zida zamagetsi;

Bokosi logawa la DC;

Ndondomeko yamagetsi yamagetsi yamagetsi;

Kutulutsa kwa magetsi achiwiri.

(2) Mtetezi wazizindikiro: woteteza ma siginidwe otsika, woteteza ma frequency apamwamba, woteteza ma antenna, ndi zina zambiri.

Chipangizo choteteza mphezi:

Kutetezedwa kotetezedwa kwambiri chifukwa cha mphezi ndi mphezi zamagetsi zamagetsi zamagetsi zamagetsi monga 10 / 100Mbps SWITCH, HUB, ROUTER; · Chitetezo chosinthira maukonde chipinda; · Kutetezedwa kwa seva yamaukonde; · Malo ogwiritsira ntchito maukonde ena otetezera chida;

Bokosi la 24-port lotetezedwa lotetezedwa ndi mphezi limagwiritsidwa ntchito makamaka pakatetezedwe kakang'ono kazitsulo zingapo zamakina makabati ophatikizika ndi makabati ochepera.

Chida chachitetezo cha mphezi ya Video:

Wotetezera wotetezedwa amagwiritsidwa ntchito makamaka poteteza point-to-point pazida zamavidiyo. Itha kuteteza zida zingapo zamavidiyo kuchokera pamagetsi oyatsa mphezi ndi mafunde oyenda kuchokera pamzere wolozera. Ikugwiritsanso ntchito kufalitsa kwa RF pansi pamagetsi omwewo. Bokosi lotetezera makanema ogwiritsira ntchito zida zingapo limagwiritsidwa ntchito poteteza pakatikati pazida zowongolera monga zojambulira zolimba za disk komanso ocheka makanema mu kabati yoyang'anira.

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