Maitiro ekusarudza Solar DC Surge Dziviriro Chishandiso?

Ndeipi basa re solar DC surge protectors?Ndinofunga kuti vazhinji vanogadzira magetsi vakanyatsojeka.Mheni senjodzi yakakomba yechisikigo, kuitika kwemheni-inokonzerwa nekupfuura overvoltage overcurrent iri nyore kwazvo kukonzeresa kukuvadza kune chivako chemagetsi midziyo, kunyanya midziyo yemagetsi, zvichikonzera kurasikirwa kwehupfumi hwakananga uye husina kunanga kune bhizinesi.Naizvozvo, kuchengetedzwa kwemheni uye kuchengetedzwa kwekuchengetedza mune tekinoroji yekuchengetedza tekinoroji yave nzvimbo yazvino inopisa.Saka, DC kuvhiya vadziviriri vanofanirwa kuve maitiro ekusarudza?

Nekuvandudzwa kwetekinoroji, zvigadzirwa zvemagetsi zviri kuramba zvichisiyana, uye mashandisirwo azvo ari kuramba achipararira.Nekudaro, iyo surge voltage resistance level yeizvi zvigadzirwa zvemagetsi kazhinji yakadzikira pane iya yelow-voltage distribution equipment, saka vari panjodzi yekushanduka kwevoltage, kureva kukuvadzwa kubva pakusurgery voltages.Iko kunonzi kuvhiya, kunozivikanwawo sekuti transient overvoltage, kushanduka kwemagetsi kunoitika mudunhu uye kunogona kugara inosvika miriyoni imwe yesekondi mudunhu, senge mumheni, mheni pulses inogona kuramba ichiburitsa voltage. kuchinja kwedunhu.

220V wedunhu sisitimu inoburitsa yakaramba iripo pakarepo voltage inoshanduka inogona kusvika 5000 kana 10000V, iyo inozivikanwawo sekuvhiya kana kupfuudza overvoltage.More mheni nzvimbo muChina, uye mheni sechinhu chinokosha generating surge voltage mumutsara, saka zvakakodzera kusimbisa mheni kudzivirira mune yakaderera-voltage kuparadzirwa hurongwa.

        SPD yekudzivirira kudziviriraiyo overvoltage mudziviriri, iyo nheyo yekushanda ndeyekuti kana tambo yemagetsi, chiratidzo chekufambisa mutsara chinopfuudza overvoltage, chidziviriro chekuvhiya chinenge chave overvoltage drain kudzikamisa voltage muhuwandu hwevoltage iyo midziyo inogona kumira, nekudaro ichidzivirira midziyo kubva kune voltage kuvhunduka.

Surge mudziviriri mumamiriro akajairwa, mune yakakwira yekupikisa mamiriro, hapana kuvuza kweazvino;kana paine overvoltage mudunhu, iyo yekuvhiya mudziviriri inokonzeresa munguva pfupi pfupi, iyo overvoltage simba leakage, kuchengetedza midziyo;overvoltage inonyangarika, iyo yekuvhiya inodzivirira kudzoreredza yakakwira yekupikisa mamiriro, haizokanganisa yakajairika magetsi ekupa zvachose.

DC Surge Dziviriro Dhizaini Mapoinzi uye Wiring Mafomu

1. Iko Kukanganisa kweSurge Protector Device Design

Parizvino, dhizaini yedc solar surge protector kuchine zvikanganiso zvakawanda mukuvaka chaiko kwakakonzera matambudziko mazhinji, uye zvakatokonzera kuti chirongwa chinonoke, sezvinotevera:

1) Tsananguro yedhizaini yakareruka, chirevo hachina kuratidzwa zvakajeka, uye zvinodiwa zvekumisikidza hazvina kujeka zvakakwana, izvo zvinogona kukonzera kusagadzikana kwakawanda panguva yekuvaka uye zvinogona kukonzera kukanganisa kana kurasikirwa kwehupfumi kumidziyo yemagetsi. kuchengetedzwa.

2) Dhizaini yeDc surge protector haina kuchinjika zvakakwana, uye dzimwe nguva inotoiswa zvakananga kune yakagadziriswa mheni yekudzivirira dhizaini yekuvaka, isingaenderane neiyo yepasi system yekugovera sisitimu yedhizaini yakanangwa, inogona kutungamira mukuvhiya mudziviriri mune chaiyo wiring. zvikanganiso zvekuisa.

3) mudhiyabhorosi yedhizaini, iyo dhizaini yekudzivirira dhizaini haina kukwana, senge voltage yekudzivirira level UP, kungave kuputika-uchapupu, iyo yakanyanya kushanda voltage Uc uye mamwe maparamita akakosha haana kugadzirwa, kana mamwe maparamita haana chokwadi. , zvichiita kuti kushanda kwechokwadi kwekudzivirira kwekudzivirira kukundikana kana kukanganisa kumagetsi emagetsi.

4) Zvinyorwa zvekugadzira hazvina kutsanangurwa.Kazhinji, kuva netsanangudzo yakadzama yekugadzirwa kwechidziviriro chekuvhiya chebhuku rekugadzira, senge yekuvaka purojekiti yekutarisa, hwaro hwekugadzira, kungave kusanganisa kwemagetsi ruzivo masisitimu, surge mudziviriri dhizaini dhizaini yekudzivirira.

2. Iyo Dhizaini Points yeSPD Surge Protector

1) SPD surge inodzivirira dhizaini tsananguro: kuongororwa kweprojekiti, kuvaka kwekudzivirira kwemheni, hwaro hwekugadzira, zvemagetsi ruzivo masisitimu, mheni yekudzivirira nhanho, yepasi system, nzira iyo tambo inopinda nayo mumba, kumisa kuramba zvinodiwa, nezvimwe.

2) Nyora nzvimbo yekuisirwa kwemudziviriri kuisirwa, iyo yemagetsi bhokisi nhamba, nhanho yekudzivirira, iyo nhamba, iyo yekutanga paramita (zita rekuburitsa ikozvino In kana inrush ikozvino limp, iyo yakanyanya kushanda voltage Uc, voltage yekudzivirira level Kumusoro), nezvimwe. .

3. Distribution System muChimiro cheSurge Protector Wiring

Yakaderera-voltage yekugovera sisitimu inodhonza pasi system ine IT, TT, TN-S, TN-CS mafomu mana, saka SPD yekudzivirira inodzivirira kuve yakavakirwa pane akasiyana grounding system yeyakaderera-voltage kugovera system uye sarudza rakasiyana wiring diagraph, ye semuenzaniso, kana uchishandisa TN AC simba rekugovera sisitimu, mitsetse yekugovera inotungamira kubva kuzere kugovera bhokisi muchivako ichada kushandisa TN-S pasi system.

Ndezvipi Zvinhu Zvokufunga nezvazvo Paunenge Uchisarudza DC Surge Dziviriro Chishandiso?

Kana iyo yakaderera-voltage tambo dzemagetsi kubva kune grid yekumusoro nhovo yakagadzika tambo kana yakavigwa tambo, haigone kuisirwa SPD yekuvhiya dziviriro.Uye kana zvose kana chikamu yakaderera-voltage simba mitsetse pamusoro pamusoro mitsetse, uye nharaunda kutinhira mazuva anopfuura 25d / a, nguva ino kuisa kuvhiya vadziviriri kudzivirira overvoltage pamwe simba mitsetse nokuda kwokutanga mheni impulses, kuti iyo overvoltage level iri pazasi 2.5kV.

Surge mudziviriri mudziyo unowanzo kuisirwa mumagetsi emagetsi pamutsetse unouya, nzvimbo yekuisirwa kwayo inogona kunge iri mukati memagetsi emagetsi, asi zvakare kana iri iyo yedhipatimendi rekutapurirana yenyika yakabvuma kuiswa mumutsara wemagetsi uri padyo kubva muchivako, iri, yakaiswa mumutsetse wepamusoro mumutsara wetambo.Kana iyo yemagetsi midziyo inopesana ne overvoltage ine zvinodiwa zvakanyanya, kana overvoltage ichatungamira kune zvakakomba mhedzisiro, sekugona kukonzera kuputika kana kunyange moto, kana zvakakosha zvemagetsi midziyo yekumira overvoltage kugona kwakanyanya kuderera, asi zvakare inoda kuwedzera kuiswa kwezvidziviriro zvekuvhiya.

Mune yakaderera-voltage yekugovera sisitimu yekusarudza iyo DC yekuvhiya inodzivirira mudziyo kana iwo makuru ekufunga nezvawo anotevera:

(1) Sarudza iyo voltage yekudzivirira nhanho Kumusoro kweiyo DC yekudzivirira inodzivirira.Iyo voltage yekudzivirira level Kumusoro inoreva iyo yakakwira voltage kumagumo ese emudziviriri wekudzivirira akayerwa kana zita rekuburitsa ikozvino zviito, rinowanzo kukamurwa kuita 2.5, 2, 1.8, 1.5, 1.2, 1.0 nhanho nhanhatu, iyo unit ye ​​kV.Kuti tidzivirire midziyo yemagetsi kuti irege kukuvadzwa nekuwedzeredza, isu tinotanga tafunga kuti iyo impulse inomira voltage yemidziyo yemagetsi yakadzivirirwa inofanira kunge yakakura kupfuura iyo voltage yekudzivirira level Kumusoro kweyekudzivirira yekuvhiya.

(2) surge protector mudziyo uchishandisa iyo yakazara yekudzivirira modhi.Ndiko kuti, kuL-PE, LN uye LL mutsara wakaiswa pakati pemudziviriri wekuvhiya kuitira kuti utambe kudzivirirwa kwakazara kwemutsara, iyo inogona kuchengetedza mheni inoputika pasinei nokuti ndeipi mutsara pakati pekudarika, ichaita kuti zvigadzirwa zvemagetsi zvive zvakanaka. kuchengetedzwa.Panguva imwecheteyo, kuvhurwa kweiyo yakazara yekudzivirira modhi yemudziviriri wekuvhiya inogona kupihwa simba panguva imwe chete kudzivirira kutanga kwemudziviriri wekuvhiya pamisiyano yakakonzerwa nekukuvara kwayo, nekudaro ichiwedzera hupenyu hweanodzivirira.

(3) Sarudza iyo yakanyanya kusimba yekushanda voltage Uc yekudzivirira kudzivirira.Iyo yakanyanya kusimba yekushanda voltage inoreva iyo yakakwira voltage iyo inogona kuramba ichiiswa kune inodzivirira yekudzivirira pasina kukonzera shanduko muhunhu hwemudziviriri wekuvhiya uye kufambisa inodzivirira yekuvhiya.

(4) Sarudza iyo yakakodzera yakanyanya kuburitsa ikozvino yekudzivirira yekudzivirira zvinoenderana nemamiriro ekunze enzvimbo.Iyo yakanyanya kuburitsa ikozvino inoreva kuti iyo yekuvhiya inodzivirira inogona kungopfuura iyo yepamusoro ikozvino wave wave ye8/20μs kaviri pasina kukuvara kune yekuvhiya mudziviriri.Muchokwadi, iyo DC yekudzivirira inodzivirira ine yakanyanya kuburitsa ikozvino.

Dziviriro Ongororo yeSPD Surge Dziviriro

SPD Surge mudziviriri kunyangwe dziviriro yemidziyo yemagetsi kubva mukukuvadzwa kwepamusoro kwaita basa rakakura kwazvo, asi nekuti dunhu rakagadzirwa overvoltage dzimwe nguva rinogona kudarika huwandu hwemudziviriri wekuvhiya, saka kana mudziviriri wekuvhiya akashanda kwenguva yakareba munzvimbo yakawandisa, ichakuvadzwawo kune madhigirii akasiyana, aya anokanganisa zvakanyanya nehupenyu hwesevhisi yeanodzivirira anovhiya.Semuenzaniso, kana iyo yenguva pfupi yakawandisa yakawandisa, muchengeti wekuvhiya anogona kupaza nekukonzera kupfupika kupfupi, sezvakaratidzwa mumufananidzo.

Kana mudziyo wekudzivirira wekudzivirira usina kubatanidzwa munhevedzano neanotyora wedunhu, iyo mutsara inotyora D1 inongoerekana yafamba, sezvo kukanganisa kwazvino lcc kuchiripo, chete mushure mekunge mudziviriri wekuvhiya atsiviwa, mutsara mupfupi wedunhu D1 uchavhara zvakare, kuitira kuti sisitimu irasikirwe nekuenderera kwemagetsi.Mhinduro yedambudziko iri ndeyekubatanidza mutsara wedunhu rinoputika munhevedzano nekumusoro kwekupedzisira kwechidziviriro chekuvhiya, kusarudza mutsara wedunhu wedunhu wakapihwa ikozvino zvinoenderana nehukuru hwekuburitsa ikozvino kweanodzivirira kudzivirira kuitira kuti muparadzi wedunhu ashande nemazvo, uye iyo yekutsika curve inotora C mhando, uye yekutyoka kwayo kunofanirwa kunge kwakakura kupfuura iyo yakanyanya kupfupi-yedunhu ikozvino pakuiswa.Sezvinoratidzwa patafura:

Conventional miniature circuit breaker breaking current haisi yakakura kudarika 10kA, tafura inogona kuonekwa nesarudzo ye miniature circuit breaker yakaoma kusangana nekupwanya simba kunofanira kunge kwakakura kudarika iyo yakawanda yenguva pfupi-yedunhu ikozvino pakugadzwa.Naizvozvo, kushandiswa kwemafuse kuchengetedza anovhiya anodzivirira ndiyo sarudzo chaiyo!

Summary

Surge voltage yakapararira.Zvinoenderana nenhamba, kuwedzera kwekuwedzera kunoitika maminetsi ega ega e8 mugedhi yenyika, uye 20% -30% yekutadza kwekombuta kunokonzerwa nekusurgery voltage, saka dhizaini yekudzivirira inodiwa zvakanyanya.Surge dziviriro dhizaini inodzivirira dhizaini, iyo chete nzira yekudzivirira midziyo yedu kubva mukukuvadzwa kweovervoltage zvishoma sezvinobvira.Dhizaini yesolar DC surge protector mudziyo unofanirwa kunyatso funga zvakasiyana-siyana zvinopesvedzera zvinhu.Neiyi nzira chete iyo inodzivirira yekuvhiya inogona kutamba yakanyanya kudzivirira uye zvakanyanya kuchengetedza michina yemagetsi kubva mukukuvadzwa kwepamusoro.