Imiba emininzi eshushu kwisixhobo esikhoyo sokukhusela i-SPD
1. Ukuhlelwa kweefom zamaza ovavanyo
Kuvavanyo lwesixhobo sokukhusela i-SPD, kukho impikiswano eyoyikekayo ekhaya nakwamanye amazwe malunga novavanyo lweCandelo I (Udidi B, Uhlobo 1), ikakhulu kwindlela yokulinganisa ukukhutshwa kombane ngokuthe ngqo, impikiswano phakathi kweekomiti ze-IEC kunye ne-IEEE :
(1) IEC 61643-1, kuDidi I (Udidi B, Uhlobo 1) uvavanyo lwangoku lwesixhobo sokukhusela, ifom ye-wave ye-10/350 yifom yokuvavanywa.
(2) IEEE C62.45 'IEEE Izixhobo zokukhusela amandla asezantsi-Icandelo 11 Izixhobo zokukhusela ezixhume kwiinkqubo zamandla ombane ophantsi -Iimfuneko kunye neendlela zovavanyo' zichaza uhlobo lwe-8 / 20µs njenge-waveform yovavanyo.
Iifom zefom ye-10 / 350µs zikholelwa ukuba ukuqinisekisa ukhuseleko oluyi-100% ngexesha lombane, ezona mbane zinzima kufuneka zisetyenziselwe ukuvavanya izixhobo zombane. Sebenzisa ifom ye-10 / 350µ yokujonga i-LPS (Inkqubo yoKhuselo loMbane) ukuqinisekisa ukuba ayonakalanga ngombane. Kwaye abaxhasi be-8 / 20µs waveform bakholelwa ukuba emva kweminyaka engaphezulu kwama-50 yokusetyenziswa, ifom wave ibonisa inqanaba eliphezulu kakhulu lempumelelo.
Ngo-Okthobha u-2006, abameli abafanelekileyo be-IEC kunye ne-IEEE balungelelanisa badwelisa izihloko ezininzi zophando.
Ukunikezelwa kwamandla kwe-GB18802.1 i-SPD ineefom zovavanyo zovavanyo lweCandelo I, II, kunye no-III, jonga 1 Table.
Itheyibhile 1: Inqanaba I, II kunye nohlobo lwe-III lokuvavanya
| uvavanyo | Iiprojekthi zolingo | Iiparamitha zovavanyo |
| Iklasi I | Iimp | Iincopho, Q, W / R |
| Iklasi II | Imax | I-8 / 20s |
| Iklasi III | Uoc | 1.2 / 50-s -8 / 20µs |
I-United States iqwalasele iimeko ezimbini kule migangatho mithathu ilandelayo:
IEEE C62.41. Isikhokelo se-1 'IEEE kwiiNdawo eziHlangeneyo kwiVoltage esezantsi (i-1000V nangaphantsi) kweeSekethe zaMandla ze-AC', 2002
IEEE C62.41. I-2 'IEEE ekhuthazwayo yokuziQhelanisa nokuSebenza kweeSurge kwiVoltage esezantsi (i-1000V nangaphantsi) kweeSekethe zaMandla ze-AC', 2002
IEEE C62.41. 2 'IEEE kuQeqesho oluCetyiswayo kuVavanyo lweSurge yeziXhobo eziDityaniswe kwiVoltage ePhantsi (i-1000V nangaphantsi) kweeSekethe zaMandla ze-AC', 2002
Imeko yoku-1: Umbane awubethi ngqo isakhiwo.
Imeko yesi-2: Yinto enqabileyo ukwenzeka: imibane ibetha ngqo kwisakhiwo okanye kumhlaba osecaleni kwesakhiwo ubethwe ngumbane.
Itheyibhile 2 icebisa iifom zokumela ezifanelekileyo, kunye neTheyibhile 3 inika amaxabiso okuqina ahambelana nodidi ngalunye.
Itheyibhile 2: Indawo AB C (Ityala 1) Umgangatho osetyenziswayo kunye noVavanyo lweeMpembelelo zoVavanyo lweeMpembelelo kunye neCandelo 2 Isishwankathelo seParameter.
| Imeko yoku-1 | Imeko yoku-2 | ||||||
| Uhlobo lwendawo | I-100Khz yomtshangatshangiso | Umdibaniso wamaza | Ombane eyahlukileyo / yangoku | Impembelelo ye-EFT 5/50 ns | 10/1000 iliza elide | Ukudibanisa okuqhubayo | Ukudibanisa ngokuthe ngqo |
| A | umgangatho | umgangatho | - | Lwasekhaya | Lwasekhaya | Iringi yohlobo B | Uvavanyo lwamatyala |
| B | umgangatho | umgangatho | - | Lwasekhaya | Lwasekhaya | ||
| C iphantsi | Ukhetho | umgangatho | - | Ukhetho | Lwasekhaya | ||
| C phezulu | Ukhetho | umgangatho | Ukhetho | - | |||
Itheyibhile 3: Imeko ye-SPD kwindawo yokuphuma yovavanyo 2 A, B
| Inqanaba lokubonisa | I-10 / 350's kuzo zonke iintlobo ze-SPD | I-8 / 20s ekhethiweyo ye-SPD enezinto ezingenamda kumandla ombane (MOV) C |
| 1 | 2 kA | 20 kA |
| 2 | 5 kA | 50 kA |
| 3 | 10 kA | 100 kA |
| X | Omabini la maqela athethathethana ngokukhetha iiparameter ezisezantsi okanye eziphezulu | |
Phawula:
Olu vavanyo lukhawulelwe kwi-SPD efakiweyo ekuphumeni, eyahlukileyo kwimigangatho kunye neefomathi ezongeziweyo ezichaziweyo kolu ngcebiso, ngaphandle kwe-SPD.
B. La maxabiso angentla ayasebenza kuvavanyo lwesigaba ngasinye se-SPD yamanqanaba ngamanqanaba.
C. Amava okusebenza ngempumelelo kwe-SPD nge-C esezantsi kunenqanaba lokuvezwa kwe-1 ibonisa ukuba iiparameter ezisezantsi zinokukhethwa.
"Akukho bume bamaza buchaziweyo obunokumela yonke indawo yokujikeleza, ngenxa yoko imeko yokwenene enzima ifuna ukwenziwa lula kube lula ukuphatha imilinganiselo yovavanyo yomgangatho. Ukufezekisa oku, imeko ezijikelezayo zihlelwe ukuba zibonelele ngombane kunye nokukhoyo ngoku I-waveform kunye ne-amplitude zikhethwe ukuze zikulungele ukuvavanya amandla okunyamezela ahlukeneyo esixhobo esiqhagamshelwe kumbane ophantsi ombane we-AC, kunye nezixhobo indawo ekujongwa kuyo kufuneka ilungelelaniswe ngokufanelekileyo. ”
“Injongo yokuchaza ulwahlulo lwefomathi yokuvavanywa kukubonelela abaqulunqi bezixhobo kunye nabasebenzisi ngeendlela eziqhelekileyo nezongezelelweyo zovavanyo lokuphakama kunye namanqanaba endawo okuhambelana. Amaxabiso anconywayo kwiifomathi zamaza asezantsi ziziphumo ezilula ezifunyenwe kuhlalutyo lwedatha enkulu yemilinganiselo. Ukwenziwa lula kuya kuvumela ukuphindwaphindwa nokusebenza ngokukuko kokuchasana kwezixhobo eziqhagamshelwe kumbane ombane we-AC ophantsi. ”
Amaza ombane kunye namaza akhoyo ngoku asetyenziselwa uvavanyo lwe-SPD lwempembelelo yovavanyo lwevolthi yothungelwano nonxibelelwano lweempawu kubonisiwe kwiTheyibhile 4.
Itheyibhile 4: I-Voltage kunye ne-wave yangoku yovavanyo lwempembelelo (Itheyibhile 3 ye-GB18802-1)
| Inombolo yodidi | Uhlobo lovavanyo | Vula umbane wesekethe UOC | Isc kafutshane Isc yangoku | Inani lezicelo |
A1 A2 | Ukunyuka kancinci kakhulu kwe-AC | ≥1kV (0.1-100) kV / S (Khetha kwiTheyibhile 5) | 10A, (0.1-2) A / /s µ1000µS (ububanzi) (Khetha kwiTheyibhile 5) | - Umjikelo omnye |
B1 B2 B3 | Ukunyuka kancinci | 1kV, 10/1000 1kV, okanye 4kV, 10/700 ≥1kV, 100V / µs | 100A, 10/100 25A, okanye 100A, 5/300 (10, 25, 100) A, 10/1000 | 300 300 300 |
C1 ezintathu C2 C3 | Ukunyuka ngokukhawuleza | 0.5kV okanye 1kV, 1.2 / 50 (2,4,10) kV, 1.2 / 50 ≥1kV, 1kV / µs | 0.25kA okanye 0.5kA, 8/20 (1,2,5) kA, 8/20 (10,25,100) A, 10/1000 | 300 10 300 |
D1 D2 | Amandla aphezulu | I-1kV ≥1kV | (0.5,1,2.5) kA, 10/350 1kA, okanye 2.5kA, 10/250 | 2 5 |
Qaphela: Impembelelo isetyenziswa phakathi kwesiphelo sendlela kunye nesiphelo sendlela eqhelekileyo. Nokuba kuvavanywa phakathi kweetheminali zomgca kugqitywe ngokokufaneleka. I-SPD yokunikezelwa kwamandla kunye ne-SPD yokunxibelelana ngocingo kunye nothungelwano lweempawu kufuneka zenze ubumbano lomgangatho wovavanyo olumanyeneyo olunokuthelekiswa namandla ombane wezixhobo.
Uhlobo lokutshintsha kweVoltage kunye nohlobo lomda wevolthi
Kwimbali yexesha elide, uhlobo lokutshintsha kombane kunye nohlobo lokunciphisa amandla ombane luphuhliso, ukhuphiswano, ukuqiniswa, ukuveliswa kwezinto ezintsha, kunye nophuhliso kwakhona. Uhlobo lwesikhewu somoya sohlobo lweswitshi yevolthi besisetyenziswa kakhulu kumashumi eminyaka adlulileyo, kodwa ikwabhenca iziphene ezininzi. Bazi:
(1) Inqanaba lokuqala (inqanaba B) kusetyenziswa i-10 / 350µs yohlobo lwe-SPD ebangele inani elikhulu leerekhodi zezixhobo zonxibelelwano zesikhululo somonakalo omkhulu wombane.
(2) Ngenxa yexesha elide lokuphendula kwithuba le-SPD kumbane, xa isikhululo sesiseko sinesithuba se-SPD kuphela, kwaye akukho enye i-SPD esetyenziselwa inqanaba lesibini (inqanaba C) ukukhuselwa, umbane wangoku unokubangela ukuba umbane ubuthathaka izixhobo kumonakalo wesixhobo.
(3) Xa isikhululo sesiseko sisebenzisa i-B kunye no-C kumanqanaba amabini okhuselo, isithuba esincinci se-SDP ekuphenduleni kancinci kwimibane kunokubangela ukuba onke amaza ombane agqithe kumkhuseli wenqanaba le-C, esenza ukuba umkhuseli wenqanaba le-C abe zonakaliswe ngumbane.
(4) Kunokubakho indawo engaboniyo yokukhutshwa kwentlantsi phakathi kokudibana kwamandla phakathi kohlobo lwesithuba kunye nohlobo lokunciphisa umda (indawo engaboniyo kuthetha ukuba akukho kukhutshwa kwintlantsi kwindawo yokukhutshwa kwentlantsi), okukhokelela kuhlobo lwe-SPD yesithuba ayisebenzi, kwaye inqanaba lesibini (inqanaba C) umkhuseli kufuneka amelane nokuphakama. Umbane okhoyo ngoku ubangele ukuba umkhuseli wenqanaba le-C onakaliswe ngumbane (umda yindawo yesikhululo esisezantsi, umgama owehlayo phakathi kweepali ezimbini ze-SPD zifuna malunga neemitha ezili-15). Ke ngoko, ayinakwenzeka inqanaba lokuqala ukwamkela uhlobo lwe-SPD yokusebenzisana ngokufanelekileyo nenqanaba le-C SPD.
(5) Ukuchithwa kudityaniswe kuthotho phakathi kwamanqanaba amabini okhuselo ukwenza isixhobo sokudibanisa ukusombulula ingxaki yomgama wokhuseleko phakathi kwamanqanaba amabini e-SPD. Kunokubakho indawo engaboniyo okanye ingxaki yokubonisa phakathi kwezi zimbini. Ngokwentshayelelo: “Ukunyanzelwa kusetyenziswa njengesixhobo sokuphela kunye nefomathi yamaza Ubume bunobudlelwane obusondeleyo. Kwiifom ye waveform yexabiso elide (ezinje nge-10 / 350µs), ifom ye-inductor yokudibanisa ayisebenzi kakuhle (uhlobo lwe-spark gap kunye ne-inductor alunakho ukuhlangabezana neemfuno zokhuselo zemibane eyahlukeneyo xa kubetha umbane). Xa usebenzisa izinto, ixesha lokunyuka kunye nexabiso lokunyuka kwamandla ombane kufuneka kuthathelwe ingqalelo. ” Ngapha koko, nokuba inductance yongezwa, ingxaki yohlobo lwesithuba sevolthi ye-SPD ukuya kuthi ga kwi-4kV ayinakusonjululwa, kwaye ukusebenza kwentsimi kubonisa ukuba emva kohlobo lwe-SPD kunye nodibaniso lwentlobo yohlobo lwe-SPD zidityanisiwe kuthotho, i-C- Inqanaba lama-40kA imodyuli efakwe ngaphakathi kokutshintsha kwamandla okuphulukana ne-SPD Kukho iirekhodi ezininzi zokutshatyalaliswa ngombane.
(6) I-di / dt kunye ne-du / dt yohlobo lwe-gap SPD zikhulu kakhulu. Impembelelo kumacandelo e-semiconductor ngaphakathi kwezixhobo ezikhuselweyo emva kwenqanaba lokuqala le-SPD ibonakala ngokukodwa.
(7) Spark gap umsantsa SPD ngaphandle kokonakala komsebenzi
(8) Uhlobo lwe-spark SPSP alunakuyibona imisebenzi yomonakalo we-alamu kunye nokusayina okukude (okwangoku kungafezekiswa kuphela yi-LED ukubonisa imeko yokusebenza kwesekethe yayo encedisayo, kwaye akubonakalisi ukonakala kunye nokonakala kombane umkhuseli), ke kunjalo kwizikhululo ezingalondolozwanga, i-SPD engafakwanga ayinakusetyenziswa ngokufanelekileyo.
Isishwankathelo: ngokwembono yeeparameter, izikhombisi, kunye nezinto ezisebenzayo ezinje ngentsalela eseleyo, ukudibanisa umgama, igesi yentsimbi, ixesha lokuphendula, akukho monakalo wealam, kunye nokusayiniswa kwempazamo ukusebenza ngokukhuselekileyo kwenkqubo yonxibelelwano Imiba.
Nangona kunjalo, ngophuhliso oluqhubekayo lwetekhnoloji, uhlobo lwe-spark spd-type SPD luyaqhubeka ukoyisa ukusilela kwalo, ukusetyenziswa kolu hlobo lwe-SPD kukwaqaqambisa iinzuzo ezinkulu. Kule minyaka ili-15 idlulileyo, uphando oluninzi kunye nophuhliso lwenziwe kuhlobo lwesithuba somoya (jonga kwiTheyibhile 5):
Ngokwendlela yokusebenza, isizukulwana esitsha seemveliso sinezibonelelo zamandla ombane ashiyekileyo, umthamo wokuhamba okukhulu, kunye nobukhulu obuncinci. Ngokusetyenziswa kwetekhnoloji ye-micro-gap trigger teknoloji, inokuqonda umgama "0" umgama ohambelana noxinzelelo lwe-SPD kunye nokudityaniswa koxinzelelo lwe-SPD. Ikwahlawulela ukungabikho kwempendulo kwaye ikwenze ngcono ukusekwa kweenkqubo zokukhusela umbane. Ngokwemisebenzi, isizukulwana esitsha seemveliso sinokuqinisekisa ukusebenza kwayo yonke imveliso ngokujonga ukusebenza kwesekethe yokuqalisa. Isixhobo sokukhupha i-thermal sixhobo sifakwe ngaphakathi kwimveliso ukunqanda ukutshiswa kweqokobhe langaphandle; Itekhnoloji yomgama wokuvula enkulu yamkelwe kwiseti ye-electrode ukunqanda ukuhamba okuqhubekayo emva kokuwela zero. Kwangelo xesha, inokubonelela ngomsebenzi wesiginali esikude ukukhetha ubungakanani obulinganayo bemibane yombane, kunye nokwandisa ubomi benkonzo.
Itheyibhile 5: Uphuhliso oluqhelekileyo lwesithuba somlilo
| S / N | iminyaka | iimpawu eziphambili | Iingxelo |
| 1 | 1993 | Misela umsantsa omile okwa "V" otshintsha ukusuka kwincinci ukuya enkulu, kwaye usete isikhulisi esincinci esincinci ecaleni kwentlambo njengekodwa ukunceda ukufumana amandla ombane aphantsi kunye nokukhupha kude kube sithuba, usebenzisa ii-electrode kunye nolwakhiwo lwendawo kunye neepropathi ezibonakalayo ngo-1993. Khokelela i-arc ngaphandle, yenza imeko yexeshana nokucima i-arc. Abakhululi bohlobo lwantlandlolo babenevolthi ephezulu yokuphazamiseka kunye nokusasazeka okukhulu. |  |
| 2 | 1998 | Ukusetyenziswa kwesekethe yokuqalisa kombane, ngakumbi ukusetyenziswa kwesiguquli, kuyawuqonda umsebenzi wokuncedisa. Yeyesikhewu sokukhupha esisebenzayo esisebenzayo, esonyuselo somsantsa wokukhupha umsantsa. Ukunciphisa ngokufanelekileyo umbane wokuqhekeka. Yeyokubangela ukubetha kwentliziyo kwaye ayizinzanga ngokwaneleyo. |  |
| 3 | 1999 | Ukukhutshwa komsantsa kukhuthazwa sisiqwengana esivuthayo (senziwe ngokubonakalayo sisiguquli), ubume benziwe njengesiqingatha esivaliweyo, kwaye isangqa esime ngophondo okanye isangqa esimile kwi-arc sitshintshiwe ukusuka kwesincinci ukuya kwesikhulu, kunye nesikhokelo somoya i-groove ibonelelwe ecaleni ukulungiselela ukuzoba kunye nokwandiswa I-arc yombane iyacinywa kwaye isakhiwo esivaliweyo sinokugcwaliswa ngerhasi yokucima iarc. Kukukhula kwe-electrode yokukhutshwa kwangoko. Xa kuthelekiswa nomsantsa wokukhupha umsantsa ovaliweyo, i-arc-emile okanye isetyhula groove yandisa indawo kunye ne-electrode, efanelekileyo ivolumu encinci. Isikhewu se-elektrode sincinci, amandla okwexeshana awanelanga, |  |
| 4 | 2004 | Sebenzisana netekhnoloji yokubangela isithuba esincinci, yamkela ukuseta umgama omkhulu we-electrode kunye ne-spiral channel yokupholisa itekhnoloji yokucima, Ukuphucula kakhulu itekhnoloji ye-trigger kunye nokukwazi ukungena, ukusetyenziswa kwetekhnoloji ye-eneji enamandla izinzile kwaye ithembekile. |  |
| 5 | 2004 | Lungiselela isixhobo sokukhusela umbane ukwenza isixhobo sokhuselo sokudibana esihlangabezana neemfuno zeklasi B kunye noKhuseleko C. Iimodyuli ezenziwe ngezikhewu zokukhupha, iimodyuli ezenziwe ngezinto zokunciphisa amandla ombane, iziseko kunye nezixhobo zokonakala zidityaniswa ngeendlela ezahlukeneyo zokwenza izixhobo zokhuselo lwevoltage |  |
Imephu yendlela yophuhliso
3. Ukufana nokwahluka phakathi kwe-SPD yonxibelelwano kunye nokubonelela ngombane kwe-SPD
Itheyibhile 6: Ukufana kunye numahluko phakathi kwe-SPD yokunxibelelana nokunikezelwa kwamandla kwe-SPD
| iprojekthi | Amandla SPD | Umnxeba we-SPD |
| thumela | amandla | Ulwazi, i-analog, okanye idijithali. |
| Udidi lwamandla | Amandla ombane AC okanye DC | Iindlela ezahlukeneyo ezisebenza ukusuka kwi-DC ukuya kwi-UHF |
| Voltage yokusebenza | phezulu | Phantsi (jonga kwitheyibhile engezantsi) |
| Umgaqo wokukhusela | Ukulungelelaniswa kokuvala Inqanaba lokhuseleko le-SPD, izixhobo zokunyamezelana | Ukuhambelana kombane kukukhusela komzimba Inqanaba lokhuseleko le-SPD, izixhobo zokunyamezelana akunakuchaphazela ukuhanjiswa kwesiginali |
| umgangatho | GB / T16935.1 / IEC664-1 | I-GB / T1762.5 IEC61000-4-5 |
| Vavanya ifomathi | 1.2 / 50s okanye 8 / 20s | 1.2 / 50-s -8 / 20µs |
| Impedance yesekethe | low | phezulu |
| Ukuchonga | Yiba | Hayi |
| Izixhobo eziphambili | MOV kwaye utshintshe uhlobo | I-GDT, i-ABD kunye ne-TSS |
Itheyibhile 7: Amandla ombane aqhelekileyo kunxibelelwano lwe-SPD
| Hayi. | Uhlobo lomgca wonxibelelwano | Ikaliwe amandla ombane (V) | Amandla ombane aphezulu e-SPD (V) | Ixabiso eliqhelekileyo (B / S) | Uhlobo lwe Interface |
| 1 | DDN / Xo25 / Isakhelo Ipakethi | <6, okanye 40-60 | 18 okanye 80 | 2 M okanye ngaphantsi | I-RJ / ASP |
| 2 | IXDSL | <6 | 18 | 8 M okanye ngaphantsi | I-RJ / ASP |
| 3 | Ukudluliselwa kweDijithali ye2M | <5 | 6.5 | 2 M | I-Boa yeCoaxial |
| 4 | ISDN | 40 | 80 | 2 M | RJ |
| 5 | Umnxeba weAnalog | <110 | 180 | 64 K | RJ |
| 6 | 100M Ethernet | <5 | 6.5 | 100 M | RJ |
| 7 | I-Ethernet yeCoaxial | <5 | 6.5 | 10 M | I-Coaxial BNC yeCoaxial yeN |
| 8 | RS232 | <12 | 18 | SD | |
| 9 | RS422 / 485 | <5 | 6 | 2 M | I-ASP / SD |
| 10 | Intambo yevidiyo | <6 | 6.5 | I-Boa yeCoaxial | |
| 11 | I-Boa yeCoaxial | <24 | 27 | wephimpi |
Intsebenziswano phakathi kukhuselo lwangaphandle lwangoku kunye ne-SPD
Iimfuneko zokhuselo lwangoku-okhoyo (umaphuli wesekethe okanye i-fuse) kwisixhobo sokuqhawula izixhobo:
(1) Thobela i-GB / T18802.12: 2006 “Isixhobo soKhuselo lweSurge (SPD) Icandelo le-12: uKhetho kunye nokuSebenzisa iZikhokelo zeNkqubo yokuSasazwa kweVoltage ePhantsi”, “Xa i-SPD kunye nezixhobo zokhuselo ezingaphezulu ziyasebenzisana, igama eliphantsi kokukhutshwa ngoku Ku, kuyacetyiswa ukuba umkhuseli wangoku angasebenzi; xa okwangoku kukhulu kune-In, umkhuseli ongaphezulu ngoku unokusebenza. Ngumkhuseli ohlaziyiweyo ongaphezulu okwangoku, onjengomaphuli wesekethe, akufuneki ukuba onakaliswe sesi sifo. ”
(2) Ixabiso elilinganisiweyo langoku lesixhobo sokukhusela esingaphezulu ngoku kufuneka sikhethwe ngokobuninzi beesekethe ezifutshane ezinokuthi ziveliswe kufakelo lwe-SPD kunye nomjikelo wesekethe omfutshane onokumelana ne-SPD (enikezwe ngumenzi we-SPD Oko kukuthi, “i-SPD kunye nokukhuselwa okungaphezulu ngoku okuxhumene nayo. Umjikelo wesekethe emfutshane (eveliswe xa i-SPD isilele) yesixhobo ilingana okanye ingaphezulu kwesona sikhululo sifutshane siphezulu silindelwe kufakelo. ”
(3) Ulwalamano olukhethiweyo kufuneka lwaneliswe phakathi kwesixhobo sokukhusela ngaphezulu kwe-F1 kunye ne-SPD yangaphandle yokuqhagamshela i-F2 kwindawo yokungena kwamandla. Umzobo we-wiring wovavanyo ulandelayo:
Iziphumo zophando zezi zilandelayo:
(a) Umbane kwii-breakers zesekethe kunye neefyuzi
U (umaphuli wesekethe) ≥ 1.1U (fuse)
U (SPD + ngaphezulu komkhuseli wangoku) sisibalo sevektha ye-U1 (umkhuseli ongaphezulu ngoku) kunye ne-U2 (SPD).
(b) Ukunyuka kwamandla okwangoku okunokumelana nefuse okanye umaphuli wesekethe
Ngaphantsi kwemeko yokuba umkhuseli wangoku ongaphezulu engasebenziyo, fumana ubuninzi bokuphakama okwangoku ukuba i-fuse kunye ne-breaker yesekethe enamaza ahlukeneyo alinganisiweyo. Ukujikeleza kwesekethe kubonisiwe kulo mzobo ungasentla. Indlela yovavanyo imi ngolu hlobo lulandelayo: inrush yangoku esetyenzisiweyo ndim, kwaye i-fuse okanye umaphuli wesekethe awusebenzi. Xa amaxesha angama-1.1 ukungena kwangoku ndisebenza, kuyasebenza. Ngolingelo, safumana amaxabiso asezantsi alinganisiweyo afunekayo kubakhuseli abangaphezulu kwangoku ukuba bangasebenzi phantsi kokungxamiseka kwangoku (8/20 /s wave current okanye 10/350 /s wave current). Bona itheyibhile:
Itheyibhile 8: Elona xabiso lisezantsi lesilinganisi kunye nesaphuli sesekethe phantsi kokungxamiseka kwangoku kunye nefomathi yamaza angama-8/20
| ukuqhuba okwangoku (8 / 20µs) kA | Ubuncinci bomkhuseli wangoku | |
| Fuse rated yangoku A | Umaphuli wesekethe ukalwe ngoku A | |
| 5 | 16 gG | Uhlobo lweC |
| 10 | 32 gG | Uhlobo lweC |
| 15 | 40 gG | Uhlobo lweC |
| 20 | 50 gG | Uhlobo lweC |
| 30 | 63 gG | Uhlobo lweC |
| 40 | 100 gG | Uhlobo lweC |
| 50 | 125 gG | Uhlobo lweC |
| 60 | 160 gG | Uhlobo lweC |
| 70 | 160 gG | Uhlobo lweC |
| 80 | 200 gG | - |
Itheyibhile 9: Elona xabiso lisezantsi le-fuse kunye ne-breaker breaker ayisebenzi phantsi kwe-10 / 350µ yangoku
| Inrush yangoku (10 / 350µs) kA | Ubuncinci bomkhuseli wangoku | |
| Fuse rated yangoku A | Umaphuli wesekethe ukalwe ngoku A | |
| 15 | 125 gG | Cebisa ukuba ukhethe ityala otyhidiweyo wesekethe (MCCB) |
| 25 | 250 gG | |
| 35 | 315 gG | |
Kuyabonakala kwitafile engentla ukuba amaxabiso asezantsi okungasebenzi kweefyuzi ezili-10/350 kunye nee-breaker zesekethe zikhulu kakhulu, ke kuya kufuneka siqwalasele ukuphuculwa kwezixhobo ezizodwa zokukhusela
Ngokwendlela yokusebenza kwayo kunye nokusebenza kwayo, kufanele ukuba ibe nefuthe elikhulu lokuchasana kunye nomdlalo kunye nomaphuli wesekethe okanye ifuse.
