Whatsapp
Anqiang Amandlaigxile ekwenzeni i33kV Ipali enye yeSaphuli seSekethe yaNgaphandle, eyenzelwe ukutshintshwa okuthembekileyo kunye nokukhuselwa kwiinkqubo zokusasazwa kwe-voltage ephakathi. Ngesakhiwo se-compact pole-mounted, indlela yokusebenza ngokukhawuleza, i-insulation yangaphandle eqinile, kunye nokukwazi ukuvala ngokuzenzekelayo, olu hlobo lwe-breaker lubonelela ngesisombululo esisebenzayo sezinto eziluncedo, i-substations, kunye nothungelwano lokuhambisa amandla kwi-industrial.
I-breaker circuit yangaphandle ethembekileyo kufuneka yenze ngaphezu kokuphazamisa okwangoku ngexesha lesiphoso. Kufuneka imelane nokutshintsha kweemeko zemozulu, igcine ukusebenza kwe-insulation, isebenze ngokukhawuleza, kwaye ixhase ukhuseleko lwenethiwekhi oluthembekileyo kwiminyaka emininzi. I-33kV Single Pole Outdoor Circuit Breaker idibanisa isakhiwo sepali enye ehlangeneyo kunye nesixhobo sokusebenza semagnethi esisigxina, amacandelo aphezulu okugquma, kunye nobuchwepheshe bokulawula obukrelekrele. I-voltage yayo elinganisiweyo yi-35 kV, kunye neenketho zangoku ezilinganisiweyo ze-630 A kunye ne-1250 A kunye ne-short-circuit breaks capabilities ye-20, 25, kunye ne-31.5 kA. Ezi mpawu zenza ukuba zilungele imigca yokusasaza ngaphezulu, izitishi, uthungelwano oluluncedo, kunye neenkqubo zombane zamashishini apho ukuxhomekeka kokutshintsha kwangaphandle kubalulekile.
1. Yintoni i-33kV yePali enye yeSaphuli seSekethe yaNgaphandle?
2. Kutheni le nto ibalulekile kwi-Medium-Voltage Distribution?
3. Ziziphi iimpawu zayo eziphambili zobuGcisa?
4. IiNgcaciso zobuGcisa ngokuJonga nje
5. Sisetyenziswa phi esi Saphuli-mthetho seSekethe?
6. UkuFakelo kunye nokuQinisekisa iNgqwalasela
7. Kufuneka abathengi bakhethe njani iModeli eLungileyo?
I-33kV Single Pole Outdoor Circuit Breaker sisixhobo esiphakathi sokutshintsha kunye nokukhusela isixhobo esenzelwe iinkqubo zokuhambisa umbane ngaphandle. Inokuphazamisa umbane wangoku, i-fault current, kunye ne-short-circuit current xa iimeko zombane ezingaqhelekanga zenzeka.
Ngokungafaniyo nesixhobo sokutshintsha esiqhelekileyo sangaphakathi, i-breaker-pali yangaphandle kufuneka igcine ukusebenza okuthembekileyo kombane kunye noomatshini ngelixa ibonakaliswe kutshintsho lobushushu, umoya, ungcoliseko, ukufuma kunye nezinye iimpembelelo zokusingqongileyo. Uqwalaselo lwepali enye ehlangeneyo lunokwenza lula ufakelo oluxhonywe kwipali ngelixa libonelela ngokusebenza kokutshintsha okufunwayo kuthungelwano olungaphezulu.
Uyilo lwaMandla e-Anqiang lubandakanya indlela yokusebenza yamagnetic esisigxina kunye nezixhobo eziphezulu zokugquma. Imveliso ikwaxhotyiswe nomlawuli okrelekrele kwaye inokwenziwa ngokwezifiso kwiimfuno zombane okhethekileyo ngokweemfuno zeprojekthi. Uyilo lwayo lugxininisa ukuphendula ngokukhawuleza, ukusebenza ngokuzinzile, ubomi obude benkonzo, kunye nokunciphisa iimfuno zokugcina.
Amanethiwekhi okuhambisa amandla afuna izixhobo zokukhusela ezinokuphendula ngokukhawuleza xa kukho impazamo. Isiphaluka esifutshane esishiywe singacacanga singonakalisa ii-transformers, iintambo, ii-conductors, kunye namanye amacandelo enethiwekhi ngelixa ukwandisa umngcipheko wokuphazamiseka kwenkonzo eyandisiweyo.
I-breaker circuit yangaphandle inika indawo ebalulekileyo yokukhusela phakathi kwenethiwekhi yokusabalalisa kunye nezixhobo zombane ezisezantsi. Xa idityaniswe nenkqubo efanelekileyo yokukhusela kunye nokulawula, inokunceda ukwahlula amacandelo aphosakeleyo ngelixa ivumela iinxalenye eziphilileyo zenethiwekhi ukuba ziqhubeke nokusebenza.
Kwizinto eziluncedo kunye nezixhobo zemizi-mveliso, ezi zakhono zinokuba negalelo ekuphuculeni ukuthembeka kokusasazwa kunye nolawulo lwempazamo olusebenzayo.
Uyilo lwepali enye lufanelekile kwizicelo zepali zangaphandle apho indawo yokufakela kunye nokulungiswa kwezixhobo zibalulekile. Ulwakhiwo olubambeneyo lunokunceda ukwenza lula ukudityaniswa kwezixhobo zokutshintshela kwiziseko ezingundoqo ezikhoyo zokusasaza.
Umatshini wemagnethi osisigxina wenzelwe ukubonelela ngokuzinzileyo kunye nokusebenza kokutshintsha ngokukhawuleza. Ngokwedatha yobugcisa epapashiweyo, ixesha lokuvula limalunga ne-20-45 ms kwaye ixesha lokuvala limalunga ne-25-45 ms.
I-breaker ichazwe ukuya kuthi ga kwi-30 ilinganiswe imisebenzi yokuqhawula i-short-circuit kunye nobomi bomatshini bemisebenzi ye-20,000. Ezi zilinganiso zenza unyamezelo lube yingqwalasela ebalulekileyo kuthungelwano olufuna ukutshintshwa ngokuphindaphindiweyo kunye nokusebenza okuthembekileyo kwexesha elide.
Isixhobo senzelwe ukusebenza kwangaphandle phantsi kweemeko ezifunekayo, kubandakanywa isidanga songcoliseko IV. Uluhlu lwalo lobushushu bokusebenza oluchaziweyo luyi -30 ° C ukuya +60 ° C, ngelixa ubushushu obuchaziweyo bokugcina busuka kwi -40 ° C ukuya +85 ° C.
Ukusebenza ngokukhawuleza kunye nokukwazi ukuvala kwakhona okuzenzekelayo kunokuba luncedo ngakumbi kuthungelwano lokuhambisa ngaphezulu, apho ezinye iimpazamo zinokuba zethutyana. Ulawulo olufanelekileyo kunye nezicwangciso zokukhusela kufuneka zihlale zisekwe ngokuhambelana noyilo lwenkqubo yombane kunye nemigangatho esebenzayo.
Ezi nkcukacha zilandelayo zishwankathela iiparamitha eziphambili ezipapashiweyo zesi saphuli sangaphandle:
| Ipharamitha | Inkcazo |
|---|---|
| Ulinganiso lweVoltage | 35 kV |
| Ikalwe ngoku | 630 / 1250 A |
| Ireyithwe rhoqo | 50/60 Hz |
| I-Power-Frequency Withstand Voltage | 80 / 95 kV, 1 umzuzu |
| Impulse yoMbane imelana neVoltage | Incopho ye-185 kV |
| I-Short-Circuit Breaking yangoku | 20 / 25 / 31.5 kA |
| Ukwenza iSekethe emfutshane yangoku | 80 kA incopho |
| Ubomi boomatshini | 20,000 imisebenzi |
| Ixesha lokuvula | 20–45 ms |
| Ixesha lokuvala | 25–45 ms |
| Ubushushu bokusebenza | -30°C ukuya +60°C |
| Ubuphezulu boFakelo loMphakamo | 2,000 m |
Ezi parameters kufuneka zivavanywe kunye ne-voltage yenkqubo, i-fault current ekhoyo, ulungelelwaniso lwe-insulation, indawo yofakelo, useto lokhuseleko, kunye neemfuno zombane zasekhaya ezifanelekileyo.
Uluhlu lwesicelo se-33kV-iklasi ye-breaker yangaphandle inabela kwiimeko ezininzi zokuhambisa amandla ombane ophakathi.
Kwizicelo ezineempazamo zexeshana rhoqo, ukuvala ngokuzenzekelayo kunokuba luncedo ngakumbi. Nangona kunjalo, ulungelelwaniso phakathi kwe-breaker, i-relay yokukhusela okanye isilawuli esikrelekrele, izixhobo ezinyukayo, kunye nezixhobo ezisezantsi kufuneka ziqinisekiswe ngaphambi kokugunyaziswa.
Ufakelo oluchanekileyo luyimfuneko ekugcineni ukhuseleko lombane kunye nokuthembeka kokusebenza kwe-medium-voltage yangaphandle ye-breaker circuit. Isakhiwo sokuxhoma kufuneka sinikeze uzinzo olwaneleyo lomatshini, ngelixa ukudibanisa kunye nokudibanisa kwesigaba kufuneka kuhambelane neemfuno zobunjineli beprojekthi.
Iimeko zokusingqongileyo kufuneka nazo ziqwalaselwe. Iimeko zokusebenza ezipapashiweyo zichaza ubushushu be-ambient ye -30 ° C ukuya + 60 ° C, ubude obungekho ngaphezu kwe-2,000 yeemitha, isantya somoya ukuya kwi-34 m / s, kunye ne-pollution degree IV.
Ukukhetha i-medium-voltage circuit breaker akufanele isekelwe kwi-voltage yodwa. Imodeli efanelekileyo yobugcisa kufuneka ihambelane neempawu zombane kunye nezokusingqongileyo zofakelo olucetywayo.
| Into yoKhetho | Yintoni emayiJongwe | Isizathu Sokuba Kubalulekile |
|---|---|---|
| Umbane weNkqubo | I-voltage ye-Nominal kunye neyona ndlela iphezulu | Iqinisekisa ukugquma okufanelekileyo kunye nokukwazi ukutshintsha |
| Ikalwe ngoku | I-feeder eqhelekileyo okanye umthwalo wangoku | Inqanda ukhetho lwangoku olungafanelekanga |
| Inqanaba lempazamo | Ilindeleke ukuba ibe yi-short-circuit current | Imisela umthamo ofunekayo wokuphazamiseka |
| Indawo yoFakelo | Iqondo lobushushu, ukuphakama, umoya, kunye nongcoliseko | Ixhasa ukusebenza okuthembekileyo kwangaphandle |
| Ulawulo lweeMfuno | Ukuvala ngesandla, umbane, ubukrelekrele okanye ngokuzenzekelayo | Iqinisekisa ukuhambelana nenkqubo yokukhusela |
| ULungiselelo lokuNyusa | Ipali, ifreyimu yentsimbi, iindawo zokucoca, kunye nesithuba sesigaba | Ixhasa ukhuseleko lokufakela oomatshini kunye nombane |
Kwiimfuno ezithile zeprojekthi, abathengi kufuneka banike amandla ombane enkqubo, inqanaba langoku, inqanaba lesekethi emfutshane, iimeko zokusingqongileyo, amandla ombane olawulo, ulungiselelo lofakelo, kunye nemisebenzi yokhuseleko efunekayo xa becela ikowuteshini. Oku kuvumela umenzi ukuba acebise ulungelelwaniso kunokuxhomekeka kukhetho lwemveliso yegeneric.
Umsebenzi wayo ophambili kukutshintsha kunye nokuphazamisa iisekethe zombane ngelixa unceda ukukhusela i-medium-voltage overhead distribution systems against fault and short-circuit currents. Inokuthi idityaniswe kukhuseleko lwenethiwekhi kunye nezicwangciso zokuvala ngokuzenzekelayo.
Ewe. Iimeko zokusebenza ezipapashiweyo zigubungela amaqondo okushisa ukusuka kwi -30 ° C ukuya + 60 ° C, ukufakela ukuphakama ukuya kwi-2,000 yeemitha, isantya somoya ukuya kwi-34 m / s, kunye ne-pollution degree IV. Okwenyani ukufaneleka kufuneka kuqinisekiswe ngokuchasene nemeko yendawo ethile yeprojekthi.
Uluhlu lwenkcazo yobugcisa obupapashiweyo lulinganiswe ukhetho lwangoku lwe-630 A kunye ne-1250 A. Ukhetho olufanelekileyo luxhomekeke kwiimpawu zomthwalo kunye noyilo lombane lwenkqubo yokusabalalisa.
Iinketho ezidwelisiweyo zokwaphuka kwesekethe emfutshane yi-20 kA, 25 kA, kunye ne-31.5 kA. Abathengi kufuneka bakhethe ixabiso elifanelekileyo ngokusekwe kwi-prospective prospective current current kwindawo yofakelo.
Ewe. Ukukwazi ukuvala okuzenzekelayo zidweliswe phakathi kweempawu zemveliso. Iisetingi zokuvala kwakhona kunye nolungelelwaniso lokhuselo kufuneka luqwalaselwe ngokwendlela yoyilo lwenethiwekhi ethile.
Inkcazo epapashiweyo inika ubomi boomatshini bemisebenzi engama-20,000, ngelixa ubalo olulinganisiweyo lokwaphulwa kwesekethe emfutshane luchazwa njengamaxesha angama-30.
I-breaker circuit ethembekileyo yangaphandle ingenza umehluko omkhulu kukhuseleko, ukuqhubeka, kunye nokugcinwa kwenkqubo yokusabalalisa i-medium-voltage. Ngolungelelwaniso oluxhonywe kwipali ehlangeneyo, indlela yokusebenza yemagnethi esisigxina, ukugqunyelelwa okuqinileyo, ukusebenza kokutshintsha ngokukhawuleza, ukukwazi ukuphinda kuvalwe ngokuzenzekelayo, kunye namanqaku amaninzi angoku kunye neesekethe ezimfutshane,33kV Ipali enye yeSaphuli seSekethe yaNgaphandleyenzelwe ukujongana noluhlu olubanzi lwezinto eziluncedo, isitishi esincinci, kunye neemfuno zokusasazwa kwemizi-mveliso. Ukuba uvavanya uqwalaselo olufanelekileyo lwenethiwekhi yakho,Qhagamshelana nathingevoltage yakho, yangoku, inqanaba lempazamo, imo engqongileyo, kunye neemfuno zofakelo ukuxoxa ngesisombululo esilungiselelweyo ngeAnqiang Power.
