Idivayisi ye-HYXHX ehlakaniphile yokucindezela i-arc

incazelo yomkhiqizo

Ukuze kuxazululwe inkinga yesikhathi eside yokweqisa kwe-overvoltage ye-arc grounding, iningi lazo lalivame ukufaka amakhoyili okucindezela ama-arc endaweni emaphakathi ukuze kunxeshezelwe i-capacitive current ukuze kucindezelwe ithuba lokuvela kwe-arc endaweni enephutha.Ngokusobala, inhloso yale ndlela ukuqeda i-arc, kodwa ngenxa yezici eziningi zekhoyili yokucindezela i-arc ngokwayo, kunzima ukunxephezela ngokuphumelelayo i-capacitive current, ikakhulukazi umonakalo obangelwa ingxenye ephezulu yemvamisa kumishini yokuhlinzeka amandla. ayinakunqotshwa.Ngesisekelo sekhoyili yokucindezela i-arc, inkampani yethu ithuthukise i-YXHX intelligent arc suppression device.

isimiso sokusebenza

●Lapho uhlelo lusebenza ngokujwayelekile, isilawuli se-microcomputer ZK sedivayisi sihlala sibona isignali ye-voltage ehlinzekwa yi-voltage transformer PT.
●Lapho i-voltage engunxantathu evulekile engu-U ye-voltage transformer PT asizayo yesibili iphenduka isuka emandleni aphansi iye emandleni aphezulu, ikhombisa ukuthi uhlelo lunephutha.Ngalesi sikhathi, isilawuli se-microcomputer ZK siqala ngokushesha, futhi ngesikhathi esifanayo ngokusho kwe-PT yesibili okukhipha amasignali Ua, Ub, Uc Shintsha ukwahlulela uhlobo iphutha kanye umehluko wesigaba:
A. Uma kuyiphutha lesigaba esisodwa sokunqanyulwa kwe-PT, isilawuli se-microcomputer u-ZK sizobonisa umehluko wesigaba kanye nesignali yokunqamula yephutha lokunqanyulwa, futhi ikhiphe isignali yokuxhumana yeswishi yokwenziwa ngesikhathi esifanayo.
B. Uma kuyiphutha lensimbi, isilawuli se-microcomputer ZK sizobonisa umehluko wesigaba kanye nesignali yemfanelo yomhlabathi yephutha lomhlabathi, futhi ngesikhathi esifanayo ikhiphe isignali yokuxhumana ye-passive switch.Ingase futhi ithumele umyalo wokuvala wesenzo ku-vacuum contactor JZ ekhabetheni ngokuvumelana nezidingo ezikhethekile zomsebenzisi., inganciphisa kakhulu i-voltage yokuxhumana kanye ne-voltage yesinyathelo, esiza ekuqinisekiseni ukuphepha komuntu siqu.
C. Uma kuyiphutha le-arc ground, isilawuli se-microcomputer u-ZK sibonisa umehluko wesigaba sephutha eliphansi kanye nezimpawu zomhlabathi, futhi ngesikhathi esifanayo sithumela umyalo wokuvala ku-vacuum contactor JZ wesigaba sephutha ukuze uguqule ngokuqondile umhlabathi we-arc ube yi-arc. inhlabathi yensimbi, futhi i-arc yomhlabathi ingenxa emibili I-voltage ye-arc ekugcineni iyancipha ngokushesha ibe yi-zero, futhi ukukhanya kwe-arc kucinywe ngokuphelele.Uma igridi yamandla ikakhulukazi iqukethe imigqa ephezulu, i-vacuum contactor JZ yocingo izovuleka ngokuzenzakalelayo ngemva kwemizuzwana emi-5.Uma kuyiphutha lesikhashana, isistimu izobuyela kokujwayelekile.Uma kuyiphutha elingunaphakade, izosebenza futhi ukuze ikhawulele unomphela i-overvoltage.Umsebenzi kanye nesignali yokuxhumana ye-passive switch
D. Uma idivayisi ifakwe umsebenzi wokukhetha umugqa ozenzakalelayo, lapho i-voltage yesibili evulekile engunxantathu engu-U ye-voltage transformer PT isiza ukusuka kumandla aphansi ukuya kwamandla aphezulu, imojula encane yamanje yokukhetha umugqa ophansi yenza ngokushesha idatha ku-zero-sequence yamanje. yomugqa ngamunye Uma lingekho iphutha eliphansi lesigaba esisodwa, lizobuyela kokujwayelekile;uma kukhona iphutha lomhlabathi wensimbi, umugqa wephutha uzokhethwa ngokuya nge-amplitude ye-zero-sequence current yomugqa.Ukuqoqwa kwedatha kwenziwa ku-zero-sequence yamanje yomugqa, futhi umugqa onephutha ukhethwa ngokuvumelana nesimiso sokuthi inani lokuguqulwa komugqa onephutha likhulu ngaphambi nangemva kokuba i-arc ephansi icishiwe.

Izici ezengeziwe zedivayisi

●Le divayisi ingafakwa umsebenzi wokukhetha umugqa ozenzakalelayo ngokwezidingo zomsebenzisi.
●Idivaysi encane yamanje yokukhetha umugqa ophansi ye-HYLX eyakhiwe inkampani yethu ngokuyinhloko ikhetha umugqa ngokuvumelana nobukhulu bomugqa olandelanayo onguziro lapho isistimu isekelwe ngensimbi, futhi ikhetha umugqa ngokuyinhloko ngokusekelwe ekushintsheni okungazelelwe kukaziro. -ukulandelana kwamanje komugqa ngaphambi nangemva kokuthi idivayisi isebenza lapho isistimu isekelwe ukukhanya kwe-arc.Inqoba ukushiyeka kwedivayisi yokukhetha umugqa ovamile, njengejubane lokukhetha umugqa onensayo kanye nokunemba kokukhetha umugqa ophansi lapho i-arc imiswa phansi.
●Le divayisi ingahlonyiswa ngomsebenzi wokuqeda (ukususa) i-resonance (vibration) ngokuya ngezidingo zomsebenzisi.
●Le divayisi ingahlonyiswa nge-transformer ekhethekile elwa nokugcwala kwamanzi ethuthukiswe inkampani yethu kanye nesinqamuli se-resonance esinqunyelwe manje, esicekela phansi ngokuyisisekelo isimo se-ferromagnetic resonance futhi sigweme “i-PT evuthayo” kanye “ne-explosion PT insurance” ingozi;ingafakwa futhi nedivaysi yokususa i-microcomputer resonance ukuze isuse i-ferromagnetic resonance ngokuya ngezidingo zomsebenzisi.

imodeli yomkhiqizo

ububanzi besicelo
●Le divayisi ifaneleka ku-3~35kV isistimu yamandla kagesi aphakathi nendawo;
Idivayisi ifanele amasistimu kagesi lapho iphoyinti eliphakathi nendawo lingagxiliwe, indawo emaphakathi isekelwe ngekhoyili yokucindezela i-arc, noma indawo emaphakathi isekelwe ukumelana okuphezulu;
●Le divayisi ifanele amagridi kagesi abuswa izintambo zikagesi, amagridi kagesi axubile ezintambo nelayini ephezulu, kanye namagridi kagesi abuswa izintambo eziphezulu.

Imingcele Yezobuchwepheshe

Izici
Uma idivayisi isebenza ngokujwayelekile, inomsebenzi wokufaka isidumbu ekhabetheni;ngesikhathi esifanayo, inomsebenzi we-alamu yokunqanyulwa kwesistimu nokuvimbela;i-alamu ye-metal ground fault alarm, umsebenzi wokudlulisa iphuzu lephutha lesistimu;umsebenzi wokuqeda i-arc light grounding kanye ne-resonance yesistimu;i-voltage ephansi kanye nomsebenzi we-alamu we-overvoltage;kanye nomsebenzi wokurekhoda ulwazi olufana nesikhathi sokuqeda i-alamu yephutha, imvelo yephutha, umehluko wesigaba sephutha, i-voltage yesistimu, ukuvula i-voltage yamahhala amathathu, kanye ne-ground capacitance current, elungele ukuphatha amaphutha nokuhlaziya.
●Uma kwenzeka iphutha lesigaba esisodwa somhlaba ohlelweni, idivayisi ingamisa ngokuqondile isigaba esinephutha ngokusebenzisa isixhumi esikhethekile sokuhlukanisa isigaba cishe ngo-30mS.Uma i-arc igxiliwe, i-arc izocishwa ngokushesha, futhi i-arc ground overvoltage izozinzisa izinga le-voltage ye-inthanethi, engagwema ngokuphumelelayo Isifunda esifushane sesigaba sesigaba esibangelwa ukumiswa kwesigaba esisodwa kanye nengozi yokuqhuma kokuboshwa okubangelwa i-arc grounding overvoltage;uma isisekelo sensimbi, singanciphisa kakhulu i-voltage yokuxhumana kanye nesinyathelo se-voltage, esiza ekuqinisekiseni ukuphepha komuntu siqu (isisekelo sensimbi singasethwa ngokuvumelana nezidingo zomsebenzisi) isenzo);uma isetshenziswa kugridi yamandla ebuswa imigqa engaphezulu, i-vacuum contactor izovuleka ngokuzenzakalelayo ngemva kokuba idivayisi isebenze imizuzwana emi-5.Uma kuyiphutha lesikhashana, isistimu izobuyela kokujwayelekile.Nciphisa umthelela we-overvoltage.
●Lapho kwenzeka iphutha lokunqanyulwa kwesistimu, idivayisi izobonisa isigaba sephutha lokunqanyulwa namasignali othintana naye okukhiphayo ngesikhathi esisodwa, ukuze umsebenzisi akwazi ukukhiya idivayisi yokuvikela engase ibangele ukungasebenzi ngenxa yokunqanyulwa.
●Ubuchwepheshe bedivayisi obuyingqayizivele be-“intelligent switch (PTK)” bungacindezela ngokuyisisekelo ukwenzeka kokuvela kwe-ferromagnetic resonance, futhi buvikele ngempumelelo ezingozini ezinjengokushisa nokuqhuma okubangelwa ukukhala kwesistimu.
●Idivayisi ifakwe isixhumi esibonakalayo se-RS485 futhi yamukela iphrothokholi yokuxhumana evamile ye-MODBUS ukuze kuqinisekiswe ukuthi idivayisi iyahambisana nalo lonke uhlelo lokuqapha futhi ibona ukudluliswa kwedatha nemisebenzi yokusebenza okukude.

Amanye amapharamitha

isici esiyinhloko
1. Idivayisi isebenza ngesivinini esisheshayo, futhi ingasebenza ngokushesha phakathi kuka-30}40ms, okufinyeza kakhulu ubude be-arc yesigaba esisodwa esiphansi;
2. I-arc ingacishwa ngokushesha ngemva kokuba idivayisi isebenze, futhi i-arc grounding overvoltage inganqunywa ngokuphumelelayo ngaphakathi kobubanzi be-voltage yomugqa;
3. Ngemuva kokuthi idivayisi isebenze, i-system capacitive current ivunyelwe ukudlula ngokuqhubekayo okungenani amahora angu-2}1, futhi umsebenzisi angabhekana nomugqa onephutha ngemva kokuqeda umsebenzi wokushintsha wokudlulisa umthwalo;
4. Umsebenzi wokuvikela wedivayisi awuthintwa isikali kanye nemodi yokusebenza yegridi yamandla;
5. Idivayisi inokusebenza okuphezulu kwezindleko zokusebenza, futhi i-voltage transformer kuyo inganikeza amasignali we-voltage wokulinganisa nokuvikela, esikhundleni se-transformer evamile;
6. Idivayisi ifakwe idivayisi encane yamanje yokukhetha umugqa ophansi, engathuthukisa kakhulu ukunemba kokukhethwa komugqa ngokusebenzisa isici soguquko lwamanje olukhulu kakhulu olulandelanayo elinguziro lomugqa wephutha ngaphambi nangemuva kokuthi i-arc icishiwe.
7. Umshini wamukela inhlanganisela ye-anti-saturation voltage transformer kanye nesinqamuleli esikhethekile samanje esikhawulela i-resonance eliminator, engacindezela ngokuyisisekelo i-ferromagnetic resonance futhi ivikele ngempumelelo i-PT;
8. Idivayisi inomsebenzi wokuqopha iphutha le-arc light grounding fault wave, ohlinzeka ngedatha kubasebenzisi ukuze bahlaziye izingozi.