Na'urar Kariya Kariya SPD

Na'urar Kariya Kariya SPD kuma ana kiranta mai saurin tashin hankali, Duk masu ba da kariya don wani dalili na musamman wani nau'i ne na saurin sauyawa, kuma mai kunna wutar yana aiki a cikin wani kewayon ƙarfin lantarki. Bayan an kunna shi, za a cire haɗin ɓangaren danniya na mai karuwar tashin hankali daga yanayin haɓakar ƙarfi, kuma za a juya sandar L zuwa yanayin rashin ƙarfi. Ta wannan hanyar, za a iya nuna ƙarfin hawan makamashi na cikin gida a cikin na'urar lantarki. Yayin duk aikin walƙiya, mai gusar da ƙarfin zai ci gaba da kasancewa mai ƙarfi a kan sandar. Wannan ƙarfin lantarki yana tabbatar da cewa kariyar kariyar koyaushe tana kan aiki kuma tana iya fitar da hauhawar zuwa ƙasa cikin aminci. A wata ma'anar, masu ba da kariya ta kariya suna kare kayan lantarki masu mahimmanci daga tasirin abubuwan walƙiya, sauya aiki a kan layin jama'a, hanyoyin gyaran abubuwan ƙarfin ƙarfin, da sauran makamashi da aka samar ta cikin ayyukan gajere na ciki da na waje.

Aikace-aikace

Hasken walƙiya yana da barazanar gaske ga amincin mutum kuma yana da haɗari ga na'urori daban-daban. Lalacewar tashin wutar lantarki ga kayan aiki ba'a iyakance shi kai tsaye ba walƙiya ta faɗo. Matsawar walƙiya a kusa-kusa babbar barazana ce ga na'urorin lantarki na zamani; a gefe guda, aikin walƙiya a nesa da fitarwa tsakanin tsawa zai iya ƙirƙirar igiyoyin ruwa masu ƙarfi a cikin wutan lantarki da madaukai na sigina, don haka kayan aikin gudana na al'ada su ne na yau da kullun. Gudu kuma gajarta rayuwar kayan aiki. Halin walƙiya yana gudana a cikin ƙasa saboda kasancewar ƙarfin ƙasa, wanda ke haifar da babban ƙarfin lantarki. Wannan babban ƙarfin bawai kawai yana lalata kayan aikin lantarki bane amma kuma yana sanya rayuwar mutum cikin haɗari saboda ƙarfin lantarki.

Geara, kamar yadda sunan ya nuna ƙarfin wucewa ne wanda ya wuce ƙarfin ƙarfin aiki na yau da kullun. A takaice dai, kariyar tashin hankali bugun jini ne wanda ke faruwa a cikin 'yan miliyan miliyan na sakan kuma zai iya haifar da hauhawa: kayan aiki masu nauyi, gajerun da'irori, sauyawar wuta, ko manyan injina. Samfurai da ke ƙunshe da masu kama mutane suna iya ɗaukar ƙarfin kuzari don kare kayan haɗin da aka haɗa daga lalacewa.

Mai ba da kariya, wanda ake kira walƙiya, kayan aikin lantarki ne wanda ke ba da kariya ga na'urori, da layukan sadarwa. Lokacin da kwatsam ko ƙarfin lantarki ya kasance ba zato ba tsammani a cikin hanyar lantarki ko layin sadarwa saboda tsangwama daga waje, mai ba da kariya mai ƙarfi zai iya gudanar da shunt ɗin a cikin ɗan gajeren lokaci, don haka guje wa lalacewar wasu kayan aikin a cikin kewayen ta hanyar hawan.

Ƙarin Sifofin

Mai kariyar tashin hankali yana da babban adadin kwarara, ƙaramin ƙarfin saura da lokacin amsawa da sauri;

Yi amfani da sabuwar baka don kashe wutar gaba daya;

Kewaye na kariya ta yanayin zafi tare da ginanniyar kariyar zafin jiki;

Tare da alamar ikon nuna alamar halin aiki na kariyar karuwa;

Tsarin yana da tsauri kuma aikin yana da karko kuma abin dogaro.

terminology

1, Tsarin ƙarewar iska

Ana amfani da kariyar kariri don abubuwan karafa da kayan karafa wadanda kai tsaye suke karba ko jure wa walƙiya, kamar sandunan walƙiya, belin kariya na walƙiya (layuka), raga mai kiyaye walƙiya, da dai sauransu.

2, Tsarin jagorar ƙasa

Kariyar kariya ta haɗa mahaɗan ƙarfe na karɓar walƙiya zuwa na'urar da ke ƙasa.

3, Tsarin karewar duniya

Jimlar wutar lantarki ta duniya da kuma madugu na Duniya.

4, Wutar lantarki ta duniya

Maigidan ƙarfe da aka binne a cikin ƙasa wanda ke cikin ma'amala kai tsaye da duniya. Har ila yau an san shi azaman ƙasa. Bangarori daban-daban na karfe, kayayyakin karafa, bututun karfe, kayan karafa, da sauransu wadanda kai tsaye zasu iya saduwa da duniya suma zasu iya zama wutan lantarki na Duniya, wanda ake kira da wutan lantarki na duniya.

5, Mai gudanar da duniya

Haɗa wayoyi masu haɗawa ko masu sarrafa na'urar daga ƙasa zuwa tashar hada kayan wutar lantarki zuwa wayoyin haɗin haɗi ko masu gudanar da na'urar ƙasa daga abubuwan ƙarfe waɗanda ke buƙatar haɗin kayan aiki, jimlar tashar ƙasa, hukumar tattara bayanai ta ƙasa, jimillar ƙasa mashaya, da haɗin kayan aiki.

6, Hasken walƙiya kai tsaye

Hasken walƙiya kai tsaye kan abubuwa na ainihi kamar gine-gine, ƙasa ko na'urorin kare walƙiya.

7, Baya flashover

Halin walƙiya yana ratsawa ta hanyar ƙasa ko kuma tsarin ƙasa don haifar da canji a cikin yiwuwar yankin. Potentialarfafawar ƙasa na iya haifar da canje-canje a cikin yiwuwar tsarin ƙasa, wanda na iya haifar da lalacewar kayan lantarki da kayan lantarki.

8, Tsarin kariyar walƙiya (LPS)

Masu ba da kariya ta iska suna rage lalacewar da walƙiya ta haifar da gine-gine, shigarwa, da sauransu, gami da tsarin kariyar walƙiya na waje da na ciki.

8.1 Tsarin kariyar walƙiya na waje

Bangaren kare walƙiya na bayan jiki ko jikin gini. Kariyar tashin hankali yawanci ta ƙunshi mai karɓar walƙiya, mai gudanar da ƙasa da na'urar da ke sa ƙasa don hana walƙiya kai tsaye.

8.2 Tsarin kariyar walƙiya na ciki

Bangaren kare walƙiya a cikin ginin (tsari), mai karuwar tashin hankali yawanci yana ƙunshe da tsarin haɗin ƙira, tsarin ƙasa na gama gari, tsarin kariya, wayoyi masu ma'ana, kariyar tsaro, da dai sauransu, galibi ana amfani dashi don ragewa da hana walƙiya a halin yanzu Tasirin lantarki yana haifar da sararin kariya

analysis

Bala'o'in walƙiya suna ɗaya daga cikin mawuyacin bala'i na bala'i. Ana samun asarar rayuka da dukiyoyi marasa adadi sanadiyyar bala'in walkiya a kowace shekara a duniya. Tare da adadi mai yawa na aikace-aikacen na'urorin haɗin lantarki da microelectronic, lalacewar tsarin da kayan aikin da lalacewar walƙiya da walƙiyar wutar lantarki ke ƙaruwa. Saboda haka, yana da matukar mahimmanci warware matsalar kare bala'in walƙiya na gine-gine da tsarin bayanai na lantarki da wuri-wuri.

Charge Fitar da wutar walƙiya ta kare zai iya faruwa tsakanin gajimare ko gajimare, ko tsakanin gajimare da ƙasa; ban da hawan da ke cikin ta dalilin amfani da kayan aiki masu yawa na lantarki, tsarin samar da wuta (tsarin samarda wutar lantarki mai karamin karfi na China: AC 50Hz 220 / 380V) da tasirin kayan lantarki da kariya daga walƙiya da hauhawa ya zama abin daukar hankali.

Harshen walƙiya tsakanin gajimare da ƙasa na mai karfa da ƙarfi ya ƙunshi walƙiya ɗaya ko da yawa, kowannensu yana ɗauke da raƙuman ruwa masu ƙarfi sosai tare da gajeren gajeren lokaci. Wata fitowar walƙiya zata haɗu da walƙiya biyu ko uku, kusan ashirin da biyu na sakan tsakanin kowace walƙiya. Mafi yawan igiyoyin walƙiya suna faɗuwa tsakanin amps 10,000 da 100,000, kuma tsawon lokacinsu bai wuce 100 microseconds ba.

Amfani da manyan kayan aiki da kayan inverter a cikin tsarin samar da wutar lantarki mai kawo kariya ya kawo babbar matsalar ta cikin gida. Mun danganta shi da tasirin wuce gona da iri (TVS). Yanayin da aka yarda dashi na ƙarfin wutan lantarki ya kasance ga kowane na'urar da aka ba da wuta. Wasu lokuta har ma da raɗaɗɗen damuwa mai wuce haddi na iya haifar da ƙarfi ko lalacewar kayan aikin. Wannan shine batun lalacewar wuce gona da iri (TVS). Musamman ga wasu ƙananan na'urori masu amfani da lantarki, wani lokacin ƙaramar hauka na iya haifar da mummunar lalacewa.

Tare da ƙarin tsauraran buƙatu don kariya ta walƙiya na kayan aiki masu alaƙa, shigar da Na'urar Kariyar Kariya (SPD) don murƙushe hazo da wuce gona da iri akan layin da wuce gona da iri akan layin jinni ya zama muhimmin ɓangare na fasahar kariya ta walƙiya ta zamani. daya.

1, halaye masu walƙiya

Kariyar walƙiya ya haɗa da kariyar walƙiya ta waje da kariyar walƙiya ta ciki. Ana amfani da kariyar walƙiya ta waje don masu karɓar walƙiya (sandunan walƙiya, ragar kariya ta walƙiya, belin kariya na walƙiya, layukan kariya na walƙiya), masu jagoran ƙasa, da na'urorin ƙasa. Babban aikin kariyar kariyar shine don tabbatar da cewa an kiyaye jikin ginin daga saurin walƙiya. Walƙiyar walƙiya da zata iya faɗuwa da gini ana sallamar ta cikin duniya ta sandunan walƙiya (belts, raga, wayoyi), masu jan wuta, da dai sauransu. Kariyar walƙiya na cikin gida ya haɗa da kariyar walƙiya, hawan igiyar ruwa, ƙarancin magance ƙasa, shigar walƙiya, da lantarki da lantarki. shigar da hankali. Hanyar ta dogara ne akan haɗin kayan aiki, gami da haɗuwa kai tsaye da haɗin kai tsaye ta hanyar SPD, don haka jikin ƙarfe, layin kayan aiki da ƙasa su zama jikin kayan aiki na sharaɗi, kuma abubuwan ciki suna ƙyamarwa kuma haifar da walƙiya da sauran haɓaka. Ana yin amfani da wutar walƙiya ko ƙarar ruwa a cikin ƙasa don kare lafiyar mutane da kayan aiki a cikin ginin.

Ana yin walƙiya da haɓakar ƙarfin lantarki mai sauri (a cikin 10ss), ƙarfin ƙarfin ƙarfi (dubun dubbai zuwa miliyoyin volts), babban halin yanzu (dubun dubbai zuwa amps dubbai), da gajeren lokaci (goma zuwa ɗaruruwan microseconds)), saurin watsawa yana da sauri (watsawa a saurin haske), kuzarin yana da girma sosai, kuma shine mafi hallakarwa a cikin karuwar tashin hankali.

2, rarrabuwa da masu kariya

SPD na'urar ce mai mahimmanci don kariyar walƙiya da kayan lantarki. Aikinta shine taƙaita saurin wucewar layin wutar da layin watsa sigina zuwa yanayin ƙarfin lantarki wanda kayan aiki ko tsarin zasu iya jurewa, ko kuma fitar da walƙiya mai ƙarfi a cikin ƙasa. Kare kayan aiki masu tsari ko tsarin daga damuwa.

2,1 Rabawa ta hanyar ka'idar aiki

An rarraba bisa ga ƙa'idar aikin su, SPD za a iya raba shi zuwa nau'in sauya ƙarfin lantarki, nau'in ƙarfin ƙarfin lantarki da nau'in haɗuwa.

(1) Nauyin sauya wuta na SPD. Idan babu wucewar wucewa, yana nuna ƙarancin impandance. Da zarar ta amsa ga walƙiya mai wucewa ta wuce gona da iri, to tasirin ta yana canzawa zuwa ƙananan ƙarancin ƙarfi, yana barin walƙiyar halin yanzu ta wuce, wanda kuma aka fi sani da "gajeren gajere mai sauya SPD".

(2) Matsa lamba mai iyakance SPD. Lokacin da babu wani wuce gona da iri na wucewa, yana da matukar damuwa, amma yayin da ƙaruwa da ƙaruwa ke ƙaruwa, toshewarta zai ci gaba da raguwa, kuma halayensa na yanzu da na ƙarfin lantarki ba sa cikin layi mara ƙarfi, wani lokaci ana kiransa “mai nau'in SPD”.

(3) Hadaddiyar SPD. Haɗuwa ce ta nau'ikan nau'in sauya ƙarfin lantarki da nau'in abin da ke iyakance ƙarfin lantarki, wanda za a iya nuna shi azaman nau'in sauya ƙarfin lantarki ko nau'in iyakancewar ƙarfin lantarki ko duka biyun, ya danganta da halaye na ƙarfin lantarki da ake amfani da shi.

2.2 Rabawa da manufa

Dangane da amfani da su, ana iya raba SPD zuwa layin wutar SPD da layin siginar SPD.

2.2.1 Layin Wuta SPD

Tunda karfin walƙiya yana da girma ƙwarai, ya zama dole a hankali a hankali ya fitar da wutar walƙiya zuwa duniya ta hanyar fitar maki. Shigar da kariyar kariya ko kuma kariyar da ke iyakance karfin wutan da ta wuce gwajin ajin Class Na a mahadar yankin kariya ta walƙiya kai tsaye (LPZ0A) ko kuma yankin kariya ta walƙiya kai tsaye (LPZ0B) da kuma yankin kariya na farko (LPZ1). Kariya ta farko, wacce ke fitar da wutar lantarki ta yau da kullun, ko kuma fitar da makamashi mai yawa yayin da layin watsa wutan lantarki ke fuskantar tsawar aradu kai tsaye. An sanya mai kare iyakar kariyar wutar lantarki a mahadar kowane yanki (gami da yankin LPZ1) a bayan yankin kariya na farko azaman na biyu, na uku ko mafi girma na kariya. Mataki na biyu shine na'urar kariya ga ragowar ƙarfin mai kare matakin farko da kuma yajin aikin walƙiya a yankin. Lokacin da shan wutar walƙiya ta gaba-gaba ya zama babba, wasu ɓangarorin har yanzu suna da girma don kayan aiki ko mai kare matakin na uku. Thearfin da aka watsa zai buƙaci ƙarin sha ta matakin mai kariya na biyu. A lokaci guda, layin watsawa na matakin farko mai walƙiya zai kuma haifar da walƙiyar electromagnetic bugun jini. Lokacin da layin ya isa sosai, kuzarin walƙiyar da aka jawo ya zama ya isa, kuma ana buƙatar mai kare matakin na biyu don ƙara zubar da wutar walƙiya. Mataki na uku yana kare ragowar walƙiya ta hanyar mai kariya na mataki na biyu. Dangane da matakin ƙarfin ƙarfin ƙarfin kayan aikin da aka kiyaye, idan matakan walƙiya na matakin biyu na iya cimma iyakar ƙarfin ƙarfin da ke ƙasan ƙarfin ƙarfin kayan aikin, ana buƙatar matakan kariya biyu ne kawai; idan kayan aiki sunyi tsayayya matakin ƙarfin lantarki yayi ƙasa, yana iya buƙatar matakai huɗu ko ma levelsarin matakan kariya.

Zabi SPD, kuna buƙatar fahimtar wasu sigogi da yadda suke aiki.

(1) Gwanin 10/350 shine zango wanda yake kwatankwacin bugun wuta kai tsaye, kuma ƙarfin kuzarin yana da girma; igiyar ruwa 8/20 '' ta kasance raƙuman ruwa ne wanda yayi kwatankwacin shigar walƙiya da kuma walƙiyar tafiyarwa.

(2) Sanarwar fitarwa ta halin yanzu A cikin tana nufin ƙwanƙolin halin da ke gudana ta cikin SPD da igiyar ruwa ta 8/20 μ.

(3) Matsakaicin fitarwa na yanzu Imax, wanda aka sani da matsakaicin ƙimar gudu, yana nufin matsakaicin fitowar ruwa wanda SPD zai iya jurewa tare da igiyar yanzu ta 8 / 20μs.

(4) Matsakaicin ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin Uc (rms) yana nufin matsakaicin ƙarfin ƙarfin AC ko ƙarfin DC wanda za'a iya ci gaba da amfani da shi zuwa SPD.

(5) Ragowar wutar lantarki Ur tana nufin ƙimar saura saura a ƙimar fitowar halin yanzu In.

(6) protectionarfin kariyar Upararrawa yana haɓaka yanayin haɓakar ƙarfin ƙarfin wuta tsakanin ƙananan iyakar SPD, kuma ana iya zaɓar ƙimarta daga jerin ƙimar da aka fi so, wanda yakamata ya fi girman ƙimar ƙarfin ƙarfin iyaka.

(7) Na'urar canzawa irin ta SPD galibi ta fitar da igiyar ruwa ta 10/350 a yanzu, kuma mai iyakance irin SPD yafi sauke nauyin 8/20 na yanzu.

2.2.2 Layin Sigina SPD

Layin siginar SPD ainihin alamar walƙiya ce da aka sanya a layin watsa siginar, gabaɗaya a ƙarshen ƙarshen na'urar, don kare na'urori masu zuwa da hana raƙuman walƙiya daga tasirin na'urar da ta lalace daga layin siginar.

1) Zaɓin matakin kariyar ƙarfin lantarki (Sama)

Upimar da ke sama ba za ta wuce ƙimar ƙarfin ƙarfin ƙarfin kayan aikin kariya ba. Up yana buƙatar cewa SPD ta dace sosai da rufin kayan aikin ana kiyaye su.

A cikin ƙaramin ƙarfin lantarki da tsarin rarrabawa, kayan aikin yakamata su sami wani ƙarfin da zai iya tsayayya da tashin hankali, ma'ana, ƙarfin tsayayya da damuwa da wuce gona da iri. Lokacin da tasirin overvoltage na kayan aiki daban-daban na 220 / 380V tsarin fasali uku ba za'a iya samu ba, ana iya zaɓar shi bisa ga alamun da aka bayar na IEC 60664-1.

2) Zaɓin zaɓin fitarwa na yanzu In (tasirin tasirin tasiri)

Babban kololuwar halin da ke gudana ta cikin SPD, igiyar ruwa ta 8/20. Ana amfani dashi don gwajin rarrabuwa na Class II na SPD da kuma don farawar SPD don gwajin Class Class da Class Class Class Class.

A zahiri, A shine matsakaicin ƙimar darajar tashin hankali wanda zai iya wuce takamaiman adadin lokuta (galibi sau 20) da takamaiman igiyar ruwa (8/20 μs) ba tare da lalata SPD ba.

3) Zaɓin iyakar fitowar halin yanzu Imax (iyakance ƙarfin kwararar ƙarfi)

An yi amfani da ƙwanƙolin halin da ke gudana ta cikin SPD, 8/20 waves na yanzu, don gwajin rarraba Class II. Imax yana da kamanceceniya da yawa tare da In, wanda ke amfani da ƙwanƙolin halin yanzu na 8/20 currents na yanzu don yin gwajin rarrabuwar Class II akan SPD. Bambancin ma a bayyane yake. Imax yana yin gwajin tasiri ne kawai akan SPD, kuma SPD baya haifar da lahani mai yawa bayan gwajin, kuma In yana iya yin irin waɗannan gwaje-gwajen 20, kuma SPD ba zai iya lalacewa sosai bayan gwajin ba. Sabili da haka, Imax shine iyakan tasirin tasirin a yanzu, saboda haka matsakaicin fitarwa na yanzu ana kiran shi ƙarfin ƙarfin kwarara na ƙarshe. Babu shakka, Imax> A ciki.

yin aiki

Na'urar Kariya da Karfi wata aba ce mai mahimmanci don kariyar walƙiya da kayan lantarki. A da ana kiransa “mai tsinkaye” ko “mai wuce gona da iri”. An taƙaita Turanci kamar SPD. Matsayin mai kare hawan shine zuwa toarfin wuce gona da iri a cikin layin wutar kuma layin watsa siginar ya iyakance ne akan yanayin ƙarfin lantarki wanda kayan aiki ko tsarin zasu iya jurewa, ko kuma ana fitar da hasken walƙiya mai ƙarfi a cikin ƙasa don kare kayan aikin kariya ko tsarin daga tasiri da lalacewa.

Nau'in da tsarin mai karuwan tashin hankali ya banbanta daga aikace-aikace zuwa aikace-aikace, amma yakamata ya ƙunshi aƙalla ɓangaren iyakance ƙarfin lantarki wanda ba layi ba. Abubuwan haɗin da aka yi amfani da su a cikin kariyar karɓa sune dakatar da rashi, bututun iska mai cike da iskar gas, varistor, diode danniya da murfin maƙarƙashiya.

Basic bangaren

1. Fitar zubar da ruwa (kuma ana kiranta rarar kariya):

Gabaɗaya an haɗa shi da sandunan ƙarfe guda biyu waɗanda aka raba ta da wani tazara da aka fallasa zuwa iska, ɗayansu an haɗa shi da layin samar da wutar lantarki L ko layin tsaka-tsaki (N) na na'urar kariya da ake buƙata, da sauran sandar ƙarfe da an haɗa layin ƙasa (PE). Lokacin da ƙarfin wucewa na wucin gadi ya buge, sai rata ta karye, kuma an shigar da wani ɓangare na cajin overvoltage a cikin ƙasa, wanda zai guji ƙaruwar ƙarfin lantarki akan na'urar da aka kiyaye. Za a iya daidaita tazara tsakanin sandunan ƙarfe biyu na tazarar fitarwa kamar yadda ake buƙata, kuma tsarin yana da sauƙi, kuma rashin fa'idarsa shi ne cewa aikin kashe baka bai da kyau. Ingantaccen rarar fitarwa tazarar kusurwa ce, kuma aikinta na kashe baka ya fi na da. Hakan na faruwa ne ta hanyar aikin wutar lantarki F na kewaya da tashin iska mai zafi don kashe baka.

2. bututun mai:

Ya kunshi faranti marasa kyau guda biyu wadanda suke rabe da juna kuma an sanya su a cikin bututun gilashi ko bututun yumbu cike da wani iskar gas (Ar). Don haɓaka yiwuwar jawo bututun fitarwa, ana samarda wakili mai haifar da fitarwa a cikin bututun fitarwar. Wannan nau'in bututun mai cike da iskar gas yana da nau'ikan sanda-biyu da kuma na sanda-uku.

Sigogin fasaha na bututun iskar gas sune: DC fitarwa ƙarfin lantarki Udc; firgitar da wutar lantarki sama (Gabaɗaya, Up≈ (2 ~ 3) Udc; mitar ƙarfin tsayayya da halin yanzu A; motsin rai tsayayya da Ip na yanzu; juriya mai rufin R (> 109Ω)); interelectrode capacitance (1-5PF)

Ana iya amfani da bututun iskar gas a ƙarƙashin yanayin DC da AC. Zabin da aka zaba na fitarwa DC Udc shine kamar haka: Yi amfani a ƙarƙashin yanayin DC: Udc≥1.8U0 (U0 shine ƙarfin DC don layin yayi aiki kwata-kwata)

Yi amfani a ƙarƙashin yanayin AC: U dc ≥ 1.44Un (Un shine ƙimar rms na ƙarfin AC don aiki na yau da kullun)

3. Bambanci:

Semistonductor ne mai ƙarancin sinadarin ƙarfe tare da ZnO azaman babban kayan aikin sa. Lokacin da ƙarfin da aka yi amfani da shi zuwa ƙarshen ƙarshen ya kai wani ƙimar, juriya na da matukar damuwa da ƙarfin lantarki. Tsarin aikinta yayi daidai da jerin abubuwa da daidaitaccen haɗin PN. Varistor yana da halaye marasa kyau (I = CUα, α ba daidaitaccen coefficient), babban kwararar ruwa (~ 2KA / cm2), karancin fitowar ruwa ta yau da kullun (10-7 ~ 10-6A), ƙananan ragowar ƙarfin lantarki (dangane da on A cikin yanayin varistor mai aiki da damar yawo), lokacin amsawa ga wucewar wucewa mai sauri yana da sauri (~ 10-8s), babu motsi.

Sigogin fasaha na varistor sune varistor voltage (watau sauya voltage) UN, reference voltage Ulma; saura ƙarfin lantarki Ures; ragowar ƙarfin lantarki K (K = Ures / UN); matsakaicin damar kwarara Imax; yayyo halin yanzu; lokacin amsawa.

Ana amfani da bambance-bambancen a ƙarƙashin yanayi masu zuwa: ƙarfin varistor: UN ≥ [(√ 2 × 1.2) / 0.7] U0 (U0 shine ƙarfin ƙarfin da aka ƙaddara na ƙarfin mitar wutar lantarki)

Voltageananan ƙarfin lantarki: Ulma ≥ (1.8 ~ 2) Uac (ana amfani da shi a ƙarƙashin yanayin DC)

Ulma ≥ (2.2 ~ 2.5) Uac (ana amfani da shi a ƙarƙashin yanayin AC, Uac shine ƙarfin lantarki na AC)

Matsakaicin ƙarfin wutar lantarki na varistor ya kamata a ƙaddara ta ƙarfin juriya na na'urar lantarki mai kariya. Ragowar ƙarfin varistor ya zama ƙasa da matakin ƙarfin lantarki na na'urar lantarki mai kariya, watau (Ulma) max≤Ub / K. Inda K shine ragowar ƙarfin ƙarfin ƙarfin saura kuma Ub shine ƙarfin ƙarfin lalacewar na'urar da aka kiyaye.

4. Diode danniya:

Diode na danniya yana da iyakantaccen aiki. Yana aiki a cikin yankin lalacewar baya. Saboda ƙananan clamping voltage da kuma saurin amsawa, ya dace musamman don amfani azaman matakan kariya na ƙarshe a cikin kewayen matakan kariya masu yawa. Ana iya bayyana halayyar volt-ampere na diode danniya a yankin da aka lalata ta hanyar mai zuwa: I = CUα, inda α ba shi da daidaitaccen daidaituwa, don Zener diode α = 7 ～ 9, a cikin ambaliyar diode α = 5 ～ 7.

Danniya diode sigogin fasaha

(1) voltagearfin fashewa, wanda ke nuni zuwa raunin ƙarfi a ƙayyadadden lalacewar halin yanzu (sau da yawa 1ma), wanda yawanci yake tsakanin kewayon 2.9V zuwa 4.7V don diod ɗin Zener, da kuma raunin da aka samu na diodes masu yawa. Voltagearfin da yake sakawa sau da yawa yana cikin kewayon 5.6V zuwa 200V.

(2) voltagearfin matattarar matsakaici: Yana nufin mafi ƙarfin lantarki da ke bayyana a ƙarshen ƙarshen wani bututu lokacin da ya wuce babban rafin da aka tsara.

(3) Parfin bugun jini: Yana nufin samfuran matsakaicin matsakaitan ƙarfin ƙarfi a ƙarshen ƙarshen bututun da kuma kwatankwacin halin yanzu a cikin bututun a ƙarƙashin takamaiman igiyar ruwa ta yanzu (misali, 10/1000 μs).

(4) voltagearfin matsuguni na baya: Yana nufin matsakaicin ƙarfin lantarki wanda za'a iya amfani da shi zuwa ƙarshen ƙarshen bututun a yankin da ke kwance baya, wanda bututun ba zai karye ba. Wannan karfin wutan da yake canzawa ya zama ya fi girma sama da mafi girman karfin wutan lantarki da yake aiki na tsarin lantarki mai kariya, watau, ba zai iya kasancewa a yanayin rashin karfi ba yayin gudanar da aiki na yau da kullun.

(5) Matsakaicin yawan zubar ruwa a halin yanzu: Yana nufin matsakaicin matsakaicin halin da yake kwarara ta cikin bututun da ke karkashin karfin wutan da ke sauyawa.

(6) Lokacin amsawa: 10-11s

5. Choke nada:

Arƙirar maƙarƙashiya ita ce na'urar tsoma baki ta yanayin tsakaitawa tare da ferrite a matsayin ainihin. An yi masa rauni daidai gwargwado a kan madaidaicin murfin murfin ta maɗaura biyu masu girma iri ɗaya da kuma adadin juyawa iri ɗaya. Don ƙirƙirar na'urar mai ƙarfi huɗu, ya zama dole a danne babban shigarwar siginar yanayin yau da kullun, kuma ba shi da tasiri kaɗan a kan bambancin shigar siginar yanayin bambanci. Arfin murƙushewa na iya murƙushe siginar tsangwama na yau da kullun (kamar tsangwama ta walƙiya) a cikin layin da aka daidaita amma ba shi da tasiri a kan siginar yanayin bambanci da layin ke watsawa koyaushe.

Ya kamata murƙushe ya cika waɗannan buƙatu idan aka samar da shi:

1) Wayoyin da aka yiwa rauni akan murfin murfin yakamata a sanya su daga juna don tabbatar da cewa babu wani gajeren gajeren abu da zai faru tsakanin juyawar murfin a karkashin wucewar wucewar.

2) Lokacin da murfin ya gudana ta cikin babban hanzari mai sauri, ainihin ba ze bayyana ba.

3) shouldarin da ke cikin murfin ya kamata a sanya shi daga murfin don hana ɓarkewa tsakanin su biyun a ƙarƙashin wucewar wucewa.

4) Murfin yakamata yaji rauni gwargwadon iko, wanda zai iya rage karfin murfin murfin kuma ya kara karfin murfin zuwa saurin wucewar lokaci.

6. 1/4 gajeren gajeren zango

Cikakken tsawan zango 1/4 shine kariyar siginar microwave bisa la'akari da nazarin raƙuman ruwan walƙiya da ka'idar tsinkayen mai ciyar da eriya. Tsawon sandar gajartar karfe a cikin wannan mai tsaron ya dogara ne da mitar siginar aiki (misali 900 MHz ko 1800 MHz). An ƙaddara girman nisan 1/4. Tsawon gajeren gajeren gajere yana da mawuyacin iyaka ga mitar siginar aiki, wanda yake daidai da kewaya ta buɗe kuma baya shafar watsa sigina. Koyaya, don raƙuman ruwan walƙiya, tunda galibi ana rarraba makamashin walƙiya ƙasa da n + KHZ, gajeriyar sandar Domin ƙwanƙwasawar walƙiya karami ce, daidai da gajeren layi, ana sauke matakin ƙarfin walƙiya a cikin ƙasa.

Tunda diamita na bargon gajeren zango na 1/4 gabaɗaya aan milimita ne, tasirin tasirin halin yanzu yana da kyau, kuma yana iya isa 30KA (8 / 20μs) ko ƙari, kuma ƙarfin ƙarfin saura yana ƙarami. Wannan ragowar wutan yana da yawa sanadi ne ta hanyar shigar da kansa da gajerun sandar. Kuskuren shine cewa ƙungiyar ƙarfin kunkuntar kuma bandwidth yana kusan 2% zuwa 20%. Wani rashin amfani shine cewa ba za a iya amfani da nuna wariyar DC ba a kan abincin eriya, wanda ke iyakance wasu aikace-aikace.

Basic kewaye

Kewayen mai karuwan tashin hankali yana da siffofi daban-daban gwargwadon buƙatu daban-daban. Abubuwan da aka samo asali sune nau'ikan da muka ambata a sama. Wani mashahurin mai binciken kayayyakin kare walƙiya a fasaha yana iya tsara kekuna daban-daban, kamar ana iya amfani da kwalin tubalan. Tsarin tsari daban-daban. Hakki ne na ma'aikatan kare walƙiya su haɓaka samfura waɗanda suke da inganci da masu tsada.

Kariyar kariya

Mai tsaron walƙiya matakin farko na walƙiya zai iya yin jini don saurin walƙiya ko kuma zub da jini yayin da layin watsa wutar lantarki ke fuskantar yajin aikin kai tsaye. Ga wuraren da walƙiya kai tsaye zata iya faruwa, CLASS-I dole ne a yi. Kariyar walƙiya. Matakin walƙiya na mataki na biyu na'urar kariya ce don saura ƙarfin lantarki na na'urar kariya ta walƙiya ta ƙarshen ƙarshen da walƙiya ta haifar da walƙiya a yankin. Lokacin da ake ɗaukar babban ƙarfin walƙiya a cikin matakin gaba, har yanzu akwai wani ɓangare na kayan aiki ko na'urar kariya ta walƙiya ta uku. Yana da yawan adadin kuzari wanda za'a watsa shi kuma yana buƙatar mai ɗaukar hoto na mataki na biyu don ƙarin sha. A lokaci guda, layin watsawa na matakin farko mai walƙiya zai kuma haifar da walƙiya mai motsa wutar lantarki LEMP. Lokacin da layin ya isa sosai, kuzarin walƙiyar da aka jawo ya zama ya isa, kuma ana buƙatar na'urar kariya ta walƙiya ta biyu don ƙara fitar da wutar walƙiya. Mataki na uku na walƙiya yana kare LEMP da ragowar walƙiya ta hanyar walƙiya ta mataki na biyu.

Kariyar matakin farko

Dalilin kariyar kariyar shine a hana a gudanar da karfin wutar lantarki kai tsaye daga yankin LPZ0 zuwa yankin LPZ1, yana iyakance karuwar karfin dubun dubun zuwa dubban daruruwan volts zuwa 2500-3000V.

Kariyar kariyar da aka sanya a gefen ƙananan ƙarfin lantarki na mai canza wutar lantarki mai sau uku ne mai sauya irin ƙarfin wutan lantarki mai walƙiya. Saurin walƙiya bazai zama ƙasa da 60KA ba. Arrester mai ba da wutar lantarki na wannan rukunin zai zama babban ƙarfin samar da walƙiya wanda aka haɗa tsakanin matakan shigar da tsarin mai amfani da wutar lantarki da ƙasa. Ana buƙatar gabaɗaya cewa mai haɓaka ƙarfin ƙarfin ƙarfin wannan rukunin yana da ƙarfin tasirin tasiri fiye da 100KA a kowane lokaci, kuma ƙarfin ƙarfin da ake buƙata bai kai 1500V ba, wanda ake kira da CLASS I mai ƙaruwa da ƙarfi da kuma mai ƙaruwa mai ƙarfi. An tsara shi don tsayayya da manyan igiyoyin walƙiya da walƙiya mai motsawa, da kuma jawo hankulan hazo mai ƙarfi, waɗannan masu kama da wutar lantarki suna dakatar da yawan ruwan da ke shigowa zuwa ƙasa. Suna samar da ƙarfin iyakancewa ne (matsakaicin ƙarfin da yake bayyana akan layin lokacin da halin inrush ya gudana ta cikin mai samar da wutar lantarki ana kiransa mai ƙayyadadden ƙarfin lantarki). Ana amfani da mai kare CLASS Class I mai karewa don ɗaukar manyan raƙuman ruwa, kawai Ba za su iya kare cikakkun kayan aikin lantarki a cikin tsarin samar da wuta ba.

Mai tsaron wutar lantarki na matakin farko na iya kare kan 10 / 350μs da 100KA raƙuman walƙiya kuma ya haɗu da ƙa'idodin kariya mafi girma waɗanda IEC ta tsara. Bayanin fasaha shine kamar haka: saurin walƙiya ya fi girma ko daidaita da 100KA (10 / 350μs); ragowar ƙarfin lantarki bai fi 2.5KV ba; lokacin amsawa bai kai ko daidai da 100ns ba.

Kariya ta biyu

Dalilin kariyar karuwar shine kara iyakance ragowar wutar lantarki ta hanyar matakin farko na walƙiya zuwa 1500-2000V kuma don haɗa kayan haɗin LPZ1-LPZ2.

Rearfin wutar lantarki wanda layin gidan mai rarraba ya samar zai zama mai iyakance ƙarfin lantarki mai ba da kariya ga na'urar walƙiya a matsayin matakin kariya ta biyu. Currentarfin walƙiyar ƙarfin ba zai ƙasa da 20KA ba. Za'a shigar dashi a cikin wutan lantarki ga mahimman kayan lantarki masu mahimmanci. Tashar rarraba hanya. Wadannan masu kama-karya karfin wuta suna samar da mafi kyawun karfin karfin da ya rage ta hanyar karfa-karfa a masarrafar samar da wutar lantarki ta abokin ciniki kuma suna da kyakkyawan murkushe hanyoyin wuce gona da iri. Surarfin wutar da aka yi amfani da shi a wannan yankin yana buƙatar matsakaicin ƙarfin tasiri na 45kA ko fiye da kowane lokaci, kuma ƙarfin ƙarfin da ake buƙata ya zama ƙasa da 1200V, wanda ake kira a KASUWARA NA II hasken wutar lantarki. Tsarin samarda wutar lantarki na mai amfani na gaba zai iya cimma kariya ta mataki na biyu don biyan buƙatun aikin kayan aikin lantarki.

Mataki na biyu mai ƙaruwa da ƙarfi yana ɗaukar mai kariya na Class C don tsari zuwa lokaci, matakin ƙasa da matsakaiciyar ƙasa cikakken yanayin kariya. Babban sigogin fasaha sune: ƙarfin walƙiya ya fi girma ko daidaita da 40KA (8 / 20μs); ragowar ƙarfin lantarki valueimar ƙoli ba ta wuce 1000V ba; lokacin amsawa bai fi 25ns ba.

Kariya ta uku

Dalilin kariyar kariyar shine a karshe kare kayan aiki ta hanyar rage ragowar wutar lantarki zuwa kasa da 1000V saboda kar karfin wutar ya lalata kayan aikin.

Lokacin da na'urar kariya ta walƙiya da aka girka a ƙarshen shigowa da wutar AC na kayan aikin bayanai na lantarki ana amfani da ita azaman kariya ta uku, zai zama nau'in nau'in nau'in ƙarfin lantarki mai iyakance ƙarfin kariya na walƙiya, da walƙiyarsa ƙarfin yanzu ba zai ƙasa da 10KA ba.

Za'a iya amfani da layin karshe na kariyar kariyar tare da ginanniyar kariyar wutar lantarki a cikin samar da wutar lantarki ta ciki na mabukaci don cimma cikakkiyar kawar da ƙananan ƙarancin wuce gona da iri. Surarfin wutar da aka yi amfani da shi a nan yana buƙatar ƙarfin tasiri na 20KA ko ƙasa da kowane lokaci, kuma ƙarfin iyakance da ake buƙata ya zama ƙasa da 1000V. Wajibi ne a sami wani mataki na uku na kariya don wasu mahimman mahimmanci ko kayan aikin lantarki masu mahimmanci, kazalika don kare kayan aikin lantarki daga ƙetare rikitarwa da aka samar a cikin tsarin.

Don samar da wutar lantarki mai gyara wanda aka yi amfani dashi a cikin kayan aikin sadarwa na microwave, kayan sadarwar tashar wayar hannu da kayan aikin radar, ya zama dole a zabi Na'urar kare wutar lantarki walƙiya tare da karban wutar lantarki mai aiki azaman matakin karshe na karshe gwargwadon kariyar ƙarfin aikinta.

Mataki na 4 da sama

Mai kare hawan gwargwadon ƙarfin ƙarfin ƙarfin ƙarfin kayan aikin da aka kiyaye, idan matakan walƙiya na matakin biyu zai iya cimma ƙarfin ƙarfin da ke ƙasa da matakin ƙarfin ƙarfin ƙarfin ƙarfin kayan aikin, kawai yana buƙatar yin matakan kariya biyu, idan kayan aikin na tsayayya da ƙarfin lantarki matakin yayi ƙasa, yana iya Bukatar matakan kariya huɗu ko sama da haka. Matsayi na huɗu na ƙarfin kwararar walƙiyarsa bai zama ƙasa da 5KA ba.

Hanyar shigarwa

1, SPD bukatun shigarwa na yau da kullun

An shigar da maɗaukaki mai ƙarfi tare da dogo mai tsayin 35mm

Don tsayayyen SPDs, ya kamata a bi waɗannan matakan don shigarwa na yau da kullun:

1) eterayyade hanyar zubar da halin yanzu

2) Yi alama akan waya don karin faɗuwar wutar lantarki da aka haifar a tashar na'urar.

3) Don kauce wa madaukai mara motsi, yiwa alama alama ta PE na kowace na'ura.

4) Kafa haɗin kayan aiki tsakanin na'urar da SPD.

5) Don daidaita daidaiton makamashi na SPD mai matakan-yawa

Don iyakance haɗin haɗuwa tsakanin ɓangaren kariya mai kariya da ɓangaren na'urar da ba a kiyaye su, ana buƙatar wasu ma'aunai. Za'a iya rage shigar da juna ta hanyar rabuwa da tushen hangowa daga da'irar hadaya, zabin kusurwar madauki, da iyakance yankin rufe madauki.

Lokacin da mai ɗauke da kayan haɗi na yanzu wani ɓangare ne na madaidaiciyar madauki, madauki da ƙarfin ƙarfin da aka jawo suna raguwa yayin da mai gudanarwar ya kusanci da'irar.

Gabaɗaya, ya fi kyau a raba waya mai kariya daga waya marar kariya kuma ya kamata a raba ta da waya ta ƙasa. A lokaci guda, don kauce wa haɗuwa ta wucin gadi mai wucewa tsakanin kebul ɗin wuta da kebul na sadarwa, ya kamata a yi ƙaunatattun matakan.

2, SPD zaɓin zaren diamita na ƙasa

Layin bayanai: Abin da ake buƙata ya fi 2.5mm girma²; lokacin da tsawon ya wuce 0.5m, ana buƙatar ya fi 4mm girma².

Layin wutar lantarki: Lokacin da yankin layi na yanki S cross16mm², layin ƙasa yana amfani da S; lokacin da zangon zangon zangon lokaci yakai 16mm²S≤35mm², Layin ƙasa yana amfani da 16mm²; lokacin da yankin layin giciye-yanki S≥35mm², layin ƙasa yana buƙatar S / 2.

Babban sigogi

1. Maras ƙarfin lantarki Un: Theaƙƙarfan ƙarfin da aka ƙaddara na tsarin kariya yana daidai. A cikin tsarin fasahar bayanai, wannan ma'aunin yana nuna nau'in kariyar da ya kamata a zaba, wanda ke nuna tasirin tasiri na karfin AC ko DC.

2. Voltageimar ƙarfin lantarki Uc: ana iya amfani dashi zuwa ƙayyadadden ƙarshen mai tsaron gidan na dogon lokaci ba tare da haifar da canji a cikin halayen mai karewa ba da kunna matsakaicin ƙarfin ƙarfin ƙarfin haɓakar mai kariya.

3. Nayyadaddun fitowar halin Isn: Matsakaicin matsakaicin halin yanzu wanda mai juriya ke jure shi lokacin da aka yi amfani da madaidaitan walƙiya tare da igiyar ruwa ta 8/20 μs ga mai tsaro har sau 10.

4. Matsakaicin fitarwa na yanzu Imax: Matsakaicin matsakaicin halin yanzu wanda mai juriya ke iya jure shi lokacin da aka yi amfani da madaidaitan walƙiya tare da igiyar ruwa ta 8/20 μs a kan mai tsaron.

5. Matakan kariyar awon wuta Up: Matsakaicin darajar mai kariya a cikin gwaje-gwaje masu zuwa: karfin wutar lantarki daga gangaren 1KV / μs; ragowar ƙarfin ƙarfin ƙarfin fitarwa na yanzu.

6. Lokacin amsawa TA: Hankalin aiki da lokacin lalacewar kayan kariya na musamman wanda yafi nunawa a cikin mai karewa, kuma canjin a wani lokaci ya dogara da gangaren du / dt ko di / dt.

7. Adadin watsa bayanai Vs: yana nuna yawan bitar da ake watsawa a dakika daya, naúrar ita ce: bps; ƙimar magana ce ta na'urar kariya ta walƙiya da aka zaɓa daidai a cikin tsarin watsa bayanai, kuma saurin watsa bayanai na na'urar kariya ta walƙiya ya dogara da yanayin watsawar tsarin.

8. Asarar Shiga Ae: Rabon ƙarfin lantarki kafin da bayan mai tsaro an saka shi a cikin mitar da aka bayar.

9. Komawar Asara Ar: Yana nuna rabon tasirin igiyar ruwa ta gaba wanda na'urar kariya ke nunawa (ma'anar tunani), wanda shine ma'auni wanda ke daidaita kai tsaye ko na'urar kariya ta dace da ƙarancin tsarin.

10. Matsakaicin matsakaiciyar fitarwa na yanzu: yana nufin ƙimar mafi girma na matsakaicin halin inuwa wanda aka yiwa mai tsaron baya lokacin da aka yi amfani da madaidaitan walƙiya tare da igiyar ruwa ta 8 / 20μs a kowace ƙasa.

11. Matsakaicin matakin fitar ruwa na kai tsaye: Matsakaicin matsakaiciyar halin yanzu wanda mai tsaro ke ciki lokacin da aka yi amfani da madaidaitan walƙiya tare da zango na 8 / 20μs tsakanin layi da layi.

12. Hanyar kan layi: tana nufin jimlar rashin daidaito da amsawar madauki wanda ke gudana ta cikin mai karewa a ƙarƙashin mara ƙarfin lantarki Un. Sau da yawa ana kiransa "ƙarancin tsarin."

13. Peak discharge current: Akwai nau'i biyu: ƙimar fitarwa ta halin yanzu Isn da matsakaicin fitowar halin yanzu Imax

14. Rashin ruwa a halin yanzu: yana nufin DC wanda yake gudana ta cikin mai karewa a wutar lantarki mara lamba Un na 75 ko 80.

An rarraba ta ka'idar aiki

1. Nau'in sauyawa: Ka'idar aiki ta kariyar karuwan tana da matukar damuwa idan babu saurin wucewa, amma da zarar ta amsa ga walƙiya mai saurin wucewa, to cikarta zata canza ba zato ba tsammani zuwa ƙananan ƙima, wanda zai ba walƙiya izini ta wuce. Idan aka yi amfani da ita azaman irin wannan na’urar, na’urar tana da: rata mai fitarwa, bututun iskar gas, thyristor, da sauransu.

2. Nau'in keɓaɓɓen irin ƙarfin lantarki: Tsarin ƙa'idar aiki na mai karuwar tashin hankali yana da matukar damuwa lokacin da babu wani wuce gona da iri na wucewa, amma ƙarancinsa zai ragu koyaushe tare da haɓakar ƙarfin halin yanzu da ƙarfin lantarki, kuma halayensa na yanzu da na ƙarfin lantarki ba su da ƙarfi. Na'urorin da ake amfani da su kamar waɗannan na'urori sune: zinc oxide, varistors, suppression diodes, avalanche diodes, da makamantansu.

3. Tsaga ko ta rikice ：

Nau'in Shunt: Daidai yake da na'urar da aka kiyaye, yana nuna rashin ƙarfi ga bugun walƙiya da kuma babban mawuyacin yanayin saurin aiki na yau da kullun.

Nau'in rikice-rikice: A cikin tsari tare da na'urar da aka kiyaye, tana nuna babban matsala ga bugun walƙiya da ƙananan ƙarancin yanayin aiki na yau da kullun.

Na'urorin da aka yi amfani da su kamar waɗannan na'urori sune: murƙushe murji, matattara masu saurin wucewa, ƙananan matatun wucewa, gajeren gajeren zango, da makamantansu.

Amfani da Na'urar Kariyar Karfi SPD

(1) Mai kare wuta: Mai kare wutar AC, Mai kare wutar DC, mai sauya wutar lantarki, da dai sauransu.

Moduleungiyar kariya ta walƙiya ta AC ta dace da kariyar ƙarfi na ɗakunan rarraba wutar, ɗakunan rarraba wutar lantarki, ɗakuna masu sauyawa, bangarorin rarraba wutar AC / DC, da dai sauransu.

Akwai akwatunan rarraba shigarwar waje da akwatunan rarraba Layer a cikin ginin;

Don ƙananan ƙarfin lantarki (220 / 380VAC) tashoshin wutar lantarki na masana'antu da grids na wutar lantarki;

A cikin tsarin wutar lantarki, galibi ana amfani dashi don shigarwa ko fitowar wutar lantarki mai matakai uku a cikin allon samar da wuta na babban ɗakin sarrafawa na ɗakin inji na atomatik ko maɓallan wuta.

Ya dace da nau'ikan tsarin wutar lantarki na DC, kamar su:

Kwamitin rarraba wutar DC;

DC kayan aikin samar da wuta;

DC akwatin rarraba;

Kayan bayanan tsarin lantarki;

Fitowar wutar lantarki ta biyu.

(2) Mai kare sigina: m-m siginar m, m-m siginar m, eriya feeder m, da dai sauransu

Hanyar kariyar siginar siginar sigina:

Protectionarfin wuce gona da iri da ke haifar da walƙiya da bugun lantarki na kayan lantarki kamar 10/100Mbps SWITCH, HUB, ROUTER; · Kariyar hanyar sadarwar dakin hanyar sadarwa; · Kariyar uwar garken dakin sadarwa; · Hanyar hanyar sadarwa hanyar kariya ta na'urar kariya;

Ana amfani da akwatin kariyar walƙiya mai tashar jirgin ruwa 24 mai amfani don kare tsakiyar tashoshin sigina da yawa a cikin ɗakunan gidan yanar sadarwar da ke cikin ƙaramin komiti.

Na'urar kariya ga walƙiyar bidiyo:

Karfin tashin hankali galibi ana amfani dashi don kariya daga aya zuwa aya na kayan aikin siginar bidiyo. Zai iya kare kayan aikin watsa bidiyo daban-daban daga yajin aikin walƙiya da wutar lantarki daga layin watsa sigina. Hakanan ya dace da watsawar RF ƙarƙashin ƙarfin lantarki ɗaya. Hadadden akwatin kariyar walƙiya na tashar bidiyo mai tashar ruwa da yawa ana amfani dashi mafi mahimmanci don kariya ta na'urori masu sarrafawa kamar masu rikodin faifan diski da masu yankan bidiyo a cikin sandar kula da hadakar.

Karfin Kariyar Kariya

Wadanda aka fi kamawa a kasuwar su ne: China LSP mai kariyar tsaro, Jamus OBO mai kariya, da DEHN mai karuwar karuwa, PHOENIX mai tsaro, US ECS mai tsaro, US PANAMAX mai tsaro, INNOVATIVE mai karuwar kariyar, US POLYPHASER Mai kare karuwa, Faransa Soule karuwa , UK ESP Furse karuwa mai tsaro da dai sauransu.