HYXHX isixhobo esikrelekrele sokucinezela i-arc series
Ingcaciso yeMveliso
Ukuze kulungiswe ingxaki ye-overvoltage yexesha elide ye-arc grounding, ininzi yabo isetyenziselwa ukufaka iikhoyili zokunciphisa i-arc kwindawo engathathi hlangothi ukuhlawulela i-capacitive current ukucinezela amathuba okuba kwenzeke kwi-arc kwindawo ephosakeleyo.Ngokucacileyo, injongo yale ndlela kukuphelisa i-arc, kodwa ngenxa yeempawu ezininzi ze-arc yokunciphisa i-coil ngokwayo, kunzima ukuhlawulela ngokufanelekileyo i-capacitive current, ngakumbi umonakalo obangelwa yi-high frequency component kwi-power supply equipment. ayinakoyiswa.Ngokwesiseko se-arc yokucinezela i-coil, inkampani yethu iphuhlise i-YXHX isixhobo esikrelekrele sokucinezela i-arc.
umgaqo wokusebenza
●Xa inkqubo isebenza ngokuqhelekileyo, umlawuli we-microcomputer u-ZK wesixhobo ufumanisa ngokuqhubekayo isignali yombane enikezelwa yi-PT transformer voltage.
● Xa i-voltage engunxantathu evulekileyo ye-U ye-voltage transformer PT i-axiliary secondary ijika ukusuka kwikhono eliphantsi ukuya kwikhono eliphezulu, ibonisa ukuba inkqubo iphosakele.Ngeli xesha, umlawuli we-microcomputer u-ZK uqala kwangoko, kwaye kwangaxeshanye ngokwe-PT imiqondiso yesibini yesiphumo Ua, Ub, Uc Guqula ukugweba uhlobo lwempazamo kunye nokwahlukana kwesigaba:
A. Ukuba yimpazamo yesigaba esisodwa se-PT, umlawuli we-microcomputer u-ZK uya kubonisa umahluko wesigaba kunye nesignali yokuqhawula impazamo yokuqhawula, kwaye ikhuphe isignali yoqhagamshelwano yoqhagamshelwano ngexesha elinye.
B. Ukuba yimpazamo yomhlaba wetsimbi, umlawuli we-microcomputer u-ZK uya kubonisa umehluko wesigaba kunye nomqondiso wempawu zomhlaba wesiphambeko somhlaba, kwaye ngexesha elifanayo likhupha isignali yokudibanisa i-passive.Iyakwazi ukuthumela umyalelo wokuvala kwi-vacuum contactor JZ kwikhabhinethi ngokweemfuno ezizodwa zomsebenzisi., inokunciphisa kakhulu i-voltage yoqhagamshelwano kunye ne-voltage yesinyathelo, evumela ukuba kuqinisekiswe ukhuseleko lomntu.
C. Ukuba yimpazamo yomhlaba we-arc, umlawuli we-microcomputer u-ZK ubonisa umehluko wesigaba sesiphoso somhlaba kunye neempawu zempawu zomhlaba, kwaye kwangaxeshanye uthumela umyalelo wokuvala kwi-vacuum contactor JZ yesigaba esiphosakeleyo ukuguqula ngokuthe ngqo umhlaba we-arc kwi-arc. umhlaba wesinyithi, kunye ne-arc yomhlaba ibangelwa ezimbini I-voltage ye-arc ekupheleni iyancipha ngokukhawuleza ibe yi-zero, kwaye ukukhanya kwe-arc kucinywe ngokupheleleyo.Ukuba igridi yamandla iqulethe imigca ephezulu, i-vacuum contactor JZ yesixhobo iya kuvula ngokuzenzekelayo emva kwemizuzwana emi-5.Ukuba yimpazamo yexeshana, inkqubo iya kubuyela kwimeko yesiqhelo.Ukuba yimpazamo esisigxina, iya kusebenza kwakhona ukukhawulela ngokusisigxina ukugqithisa.Umsebenzi kunye nesiphumo sokwenziwa kwesiginali yoqhagamshelwano
D. Ukuba isixhobo sixhotyiswe ngomsebenzi wokukhetha umgca ozenzekelayo, xa i-voltage yesibini evulekileyo engunxantathu i-U ye-voltage transformer PT incedisa ukusuka kwikhono eliphantsi ukuya kwikhono eliphezulu, imodyuli encinci yokukhetha umgca wokumisa ngokukhawuleza yenza idatha kwi-zero-sequence current. kumgca ngamnye Ukuba akukho siphako somhlaba wesigaba esinye, siya kubuyela kwimeko yesiqhelo;ukuba kukho impazamo yomhlaba wesinyithi, umgca wesiphoso uya kukhethwa ngokwe-amplitude ye-zero-sequence current yomgca.Ukuqokelela idatha kuqhutyelwa kwi-zero-sequence current yomgca, kwaye umgca ophosakeleyo ukhethwa ngokomgaqo wokuba inani lokuguqulwa komgca ophosakeleyo ngowona mkhulu ngaphambi nangemva kokuba i-arc yokumisa icinyiwe.
Iimpawu ezongezelelweyo zesixhobo
● Esi sixhobo sinokuxhotyiswa ngomsebenzi wokukhetha umgca ozenzekelayo ngokweemfuno zomsebenzisi.
● Isixhobo esincinci sokukhetha umgca wesiseko se-HYLX sangoku esiphuhliswe yinkampani yethu ikakhulu ikhetha umgca ngokwe-amplitude ye-zero-sequence yangoku yomgca xa inkqubo iphantsi kwesinyithi, kwaye ikhetha umgca ngokuyinhloko ngokusekelwe kwinguqu yequbuliso ye-zero. -ulandelelwano lwangoku lomgca ngaphambi nangemva kokuba isixhobo sisebenza xa inkqubo isekelwe kukukhanya kwe-arc.Inqoba iintsilelo zesixhobo sokukhetha umgca oqhelekileyo, njengesantya sokukhetha umgca ocothayo kunye nokuchaneka kokukhethwa komgca ophantsi xa i-arc isekelwe.
● Esi sixhobo sinokuxhotyiswa ngomsebenzi wokuphelisa (ukususa) i-resonance (vibration) ngokweemfuno zomsebenzisi.
● Esi sixhobo sinokuxhotyiswa nge-anti-saturation yamandla ombane ekhethekileyo ephuhliswe yinkampani yethu kunye ne-primary-limiting resonance eliminator, eyonakalisa ngokusisiseko imeko ye-ferromagnetic resonance kwaye inqanda "ukutshisa i-PT" kunye nakwimeko "ye-inshurensi ye-PT yokuqhuma" ingozi;Inokuthi ixhotyiswe ngesixhobo sokususa i-microcomputer resonance ukuphelisa i-ferromagnetic resonance ngokweemfuno zomsebenzisi.
imodeli yemveliso
umda wesicelo
● Esi sixhobo sifanelekile kwi-3 ~ 35kV inkqubo yamandla ombane aphakathi;
Isixhobo sifanelekile kwiinkqubo zamandla apho indawo engathathi hlangothi ingasekelwanga, indawo engathathi hlangothi isekelwe kwi-coil yokunciphisa i-arc, okanye indawo engathathi hlangothi isekelwe ngokuchasana okuphezulu;
● Esi sixhobo sifanelekile kwiigridi zamandla ezilawulwa yimigca yentambo, iigridi zamandla ezixutywe zeentambo kunye nemigca ephezulu, kunye neegridi zamandla ezilawulwa yimigca ephezulu.
IiParameters zobuGcisa
Iimbonakalo
Xa isixhobo sisebenza ngokuqhelekileyo, sinomsebenzi wokubeka isidumbu kwikhabhinethi;ngelo xesha, inomsebenzi we-alarm yokuqhawula inkqubo kunye nokuthintela;inkqubo yentsimbi yentsimbi ye-alarm ye-fault alarm, umsebenzi wokudlulisa inkqubo ye-fault point point;umsebenzi wokuphelisa i-arc light grounding kunye ne-resonance system;i-voltage ephantsi kunye nomsebenzi we-alam yombane ogqithisileyo;kunye nomsebenzi wokurekhoda ulwazi olufana nexesha lokuphelisa i-alarm ye-fault, i-fault nature, i-fault phase phase, i-voltage yenkqubo, ukuvula i-voltage yamahhala amathathu, kunye ne-ground capacitance current, ekulungele ukuphathwa kwempazamo kunye nohlalutyo.
● Xa impazamo yomhlaba yesigaba esisodwa yenzeka kwisistim, isixhobo sinokubeka ngokuthe ngqo isigaba esingalunganga ngokusebenzisa i-vacuum contactor ekhethekileyo yesigaba malunga ne-30mS.Ukuba i-arc isekelwe, i-arc iya kucinywa ngokukhawuleza, kwaye i-arc overvoltage yomhlaba iya kuzinzisa inqanaba le-voltage ye-intanethi, enokuthi iphephe ngokufanelekileyo Isiphaluka esifutshane sesigaba sesigaba esibangelwa yi-single-phase-grounding kunye nengozi yokuqhuma kwe- arrester ebangelwa i-arc grounding overvoltage;ukuba i-metal grounding, inokunciphisa kakhulu i-voltage yoqhagamshelwano kunye ne-voltage yesinyathelo, evumela ukuba kuqinisekiswe ukhuseleko lomntu (isiseko sesinyithi sinokusetwa ngokweemfuno zomsebenzisi) isenzo);ukuba isetyenziswe kwigridi yamandla elawulwa yimigca ephezulu, i-vacuum contactor iya kuvula ngokuzenzekelayo emva kokuba isixhobo sisebenze imizuzwana emi-5.Ukuba yimpazamo yexeshana, inkqubo iya kubuyela kwimeko yesiqhelo.Nciphisa umphumo wokugqithisa kwamandla.
●Xa inkqubo yokuqhawula uqhagamshelo isenzeka, ifowuni iya kubonisa isigaba sempazamo yokuqhawula kunye neempawu zoqhagamshelwano eziphumayo ngaxeshanye, ukuze umsebenzisi atshixe ngokuthembekileyo isixhobo sokhuseleko esinokubangela ukungasebenzi kakuhle ngenxa yoqhawulo.
●Ubuchwephesha besixhobo obubodwa be-“intelligent switch (PTK)” bunokucinezela ukwenzeka kweresonance ye-ferromagnetic, kwaye bukhuseleke ngokusebenzayo kwiingozi ezinjengokutsha kunye nokudubula okubangelwa yi-resonance yenkqubo.
● Isixhobo sixhotyiswe ngojongano lwe-RS485 kwaye samkela iprothokholi yonxibelelwano ye-MODBUS esemgangathweni ukuqinisekisa ukuba ifowuni iyahambelana nayo yonke inkqubo yokubeka iliso kwaye iqonde ukuhanjiswa kwedatha kunye nemisebenzi yokusebenza kude.
Ezinye iiparamitha
uphawu oluphambili
1. Isixhobo sisebenza ngesantya esikhawulezayo, kwaye sinokusebenza ngokukhawuleza ngaphakathi kwe-30} 40ms, enciphisa kakhulu ixesha le-arc yesigaba esisodwa;
2. I-arc inokucima ngokukhawuleza emva kokuba isixhobo sisebenze, kwaye i-arc grounding overvoltage inokunciphisa ngokufanelekileyo ngaphakathi koluhlu lombane lomgca;
3. Emva kokuba isixhobo sisebenze, i-system capacitive current ivunyelwe ukuba idlule ngokuqhubekayo ubuncinane ubuncinane kwi-2} iiyure ze-1, kwaye umsebenzisi unokujongana nomgca ophosakeleyo emva kokugqiba ukusebenza kokutshintsha kokudlulisa umthwalo;
4. Umsebenzi wokukhusela isixhobo awuchaphazeleki kwisikali kunye nemodi yokusebenza yegridi yamandla;
5. Isixhobo sinomsebenzi ophezulu weendleko zokusebenza, kwaye i-voltage transformer kuyo inokubonelela ngezibonakaliso ze-voltage ye-metering kunye nokukhusela, ithathe indawo ye-transformers eqhelekileyo;
6. Isixhobo sixhotyiswe ngesixhobo esincinci sokukhetha umgca wesiseko sangoku, esinokuphucula kakhulu ukuchaneka kokukhethwa komgca ngokusebenzisa uphawu lwenguqu enkulu ye-zero-sequence yangoku yomgca wephutha ngaphambi nangemva kokuba i-arc icinyiwe.
7. Isixhobo samkela indibaniselwano ye-anti-saturation i-voltage transformer kunye ne-eliminator ekhethekileyo yangoku yokunciphisa i-resonance, enokuthi icinezele i-ferromagnetic resonance kunye nokukhusela ngokufanelekileyo i-PT;
8. Isixhobo sinomsebenzi wokurekhoda we-arc light grounding fault wave, obonelela ngedatha kubasebenzisi ukuhlalutya iingozi.
