I-GGJ low-voltage reactive power intelligent compensation device iyisethi ephelele yemishini yokonga amandla ye-0.4kV/0.66kV low-voltage power distribution systems. Ijolise kumkhandlu we-microcomputer intelligent controller futhi ishintsha ngokuzenzakalelayo ama-capacitor banks ukuze ilandele ngokunembile izinguquko emthwalweni we-reactive, ifinyelele ekwandeni kwe-power factor, ukunciphisa ukulahleka komugqa, nokuthuthukisa ikhwalithi yamandla. Isetshenziswa kabanzi ezinkampanini zezimboni, ezakhiweni zokuhweba, nasezixhumanisweni zamandla avuselelekayo, phakathi kwezinye izimo.
I. Isikhala Sesicelo Namazinga Okusebenza
I-Voltage Ehlonishwayo: AC 380V/400V/660V (≤1000V)
Imvamisa Elinganisiwe: 50Hz/60Hz
Ikhono Lokubuyiselwa: 15 - 600 kvar ngekhabhinethi (okwandiswayo ngokuxhuma amakhabhinethi amaningi ngokuhlanganyela)
Amatafula Ahambisanayo: Ikakhulukazi amatafula amathathu-phase angu-100 - 630 kVA
ukuphoqelela izindinganiso
I-GB 7251.12-2013 "I-Low-Voltage Switchgear and Controlgear - Ingxenye yesi-2"
GB/T 15576-2008 "Amadivayisi Okukhokhela Amandla Angaguquki Anamandla Aphansi"
Iziq standard ze-IEC 60439
II. Ipharamitha Zobuchwepheshe Eziyinhloko
Ugesi Olinganisiwe: 380/400V (AC), 660V (okukhethwayo)
Umthamo Wokukhokhela: 15～600kvar ngekhabhinethi ngayinye (iqembu elilodwa lingu-5～60kvar)
Imodi Yokuhlangana: Okunganyakazi/Okunamandla okukhethekayo, isikhathi sokuphendula ≤ 20ms
Isifunda Sokulawula: Izifunda ezingu-1 kuye kwezi-16, zisekela ukukhokhelwa okuhlukene ngezigaba / okuxubile
Ukunemba Kokulinganisa: Ugesi ±0.5%, Ugesi Wamanje/Wamandla Kagesi ±1%
I-Power Factor: Inani elilinganisiwe lenyuswe yaba ngaphezu kuka-0.95 (okuzenzakalelayo ngu-0.9)
Indawo Yokusebenza: -25℃ kuya ku-+55℃, umswakama ≤ 95%RH (akukho ukujiya)
Izinga Lokuvikela: Cabinet IP30/IP40, ingaphakathi IP4X
Busbar Specifications: Horizontal/Concentrated 60×8mm, N/PE 40×6mm
Ubukhulu bekhabethe: Ukuphakama 1200～2300mm × Ububanzi 400～1200mm × Ukujula 300～1000mm
III. Ukwakheka Kwesakhiwo (Ukuhlanganiswa Kwamajenela)
1. I-Intelligent Control Unit
Inhliziyo: Isilawuli esisheshayo se-DSP/ARM, ukuqoqwa kwesikhathi sangempela kwevoltheji, ugesi, izinga lamandla
Umsebenzi: Ukuhlukaniswa okuzenzakalelayo kwesidingo samandla aphindaphindiwe, ukulawulwa kwe-capacitor bank ngokwezikhathi zokushintsha / isu lokushintsha elingcono
Isibonisi: Ukubuyekezwa kwesikhathi sangempela kwezinga lamandla (0.00 - 0.99 okubambezelekile / okuholela), isimo sokushintsha kwamakhapasitha
Ukuxhumana: Isixhumi se-RS485, sisekela iprotocol ye-Modbus, sivumela ukuqapha okukude
2. Iyunithi Yokukhokhela Amandla
Izingxenye Eziyinhloko: Isiqinisekiso samandla kagesi esiphansi esizilapha (ukuxhuma kwe-Y/△)
Amadivayisi Okushintsha:
Static: Contactors / Composite Switches (no inrush current switching)
Okunamandla: Thyristor Switching Capacitor (TSC, ukuphendula okusheshayo, akukho i-arc)
Izesekeli: Isiqinisekiso sochungechunge (ukuze kuncishiswe ama-harmonics, kuvinjelwe i-resonance, okukhethwa kukho)
3. I-Protection and Auxiliary Unit
Ukuvikelwa Okuphelele: Ukweqisa, ukunganele, ukweqisa umjikelezo, ukujikeleza okufushane, ukulahleka kwephasi, ukugcwala, ukuhamba kweharmonic, ukweqisa kokubuyiselwa
Amamojuli Aseceleni: Fan yokulawula izinga lokushisa, i-Surge Protector (SPD), i-Fault Alarm Output
4. Isakhiwo seKhabhinethi
Izinto: I-Cold-rolled steel plate, ukuhlanganiswa okumodular, amandla aphezulu, ukuxhuma okujwayelekile
Ukuhlukaniswa: Igumbi le-busbar, igumbi le-capacitor, igumbi lokulawula, igumbi le-cable, ukuhlukaniswa okuphephile ngokumelene ne-electric arc
IV. Izinzuzo Eziyinhloko Zokusebenza
1. Ukukhokhela okuhlakaniphile nokunembayo ngokuzenzakalelayo kulandela izinguquko zomthwalo, ngokukhokhelwa ngezigaba / okuxubile okwazi ukuzivumelanisa nemithwalo engalingani yamagase amathathu, kugcinwa isici samandla esingaphezu kuka-0.95.
2. Ukonga amandla okubalulekile nokuthuthukiswa kokusebenza kunciphisa ukulahleka komugqa ngo-10% kuya ku-30%, kuthuthukisa umthamo womthwalo we-transformer ngo-15% kuya ku-20%, futhi kunciphisa izindleko zikagesi.
3. Harmonic mitigation capability: Selectable series reactors can suppress 5/7th harmonic frequencies, prevent capacitor resonance, and be suitable for harmonic scenarios such as variable frequency drives and rectification equipment.
4. Izindlela zokuvikela eziningi eziphephile neziphethe kahle + izikhiya zemishini/ezikagesi zivimbela ukuxhuma ngokweqile, ukuxhuma okungaphansi, nokulimala kwemishini; amapharamitha okucisha kwememori, nokusebenza ngokuzenzakalelayo lapho kubuyiselwa amandla, ngaphandle kwesidingo sokuqapha endaweni.
5. Ukwanda okuguquguqukayo: Amayunithi amamodular asekelwa ukugcinwa okushisayo, ukwehluleka kweqembu elilodwa akuthinti uhlelo lonke; amakhabethe amaningi ngokuhambisanayo angandiswa abe amandla ezinga le-megawatt.
V. Izimo Zokusebenza Ezivamile
1. Imboni
I-Metallurgy, imboni yezemithi, iz workshop zokukhiqiza izimoto, ezifanele ama-rolling mills, amafurnace kagesi, ama-frequency converters, njll., okungamathuluzi aphazamisayo/angahambisani.
2. Izakhiwo Zokuhweba Nezomphakathi
Izitolo ezinkulu, izibhedlela, izikhungo zedatha, izakhiwo zamahhovisi, ezifanele ama-air conditioners, ama-elevator, ukukhanya, njll., imithwalo ehlanganisiwe.
3. Ukuhlanganiswa Kwesigridi Kwamandla Amasha
Uhlangothi lwamandla aphansi lweziteshi zamandla elanga/ezinikwa umoya, ukwenza ukuguquguquka kwamandla okungaguquki kube bushelela futhi kuqinisekise ugesi wenethiwekhi ozinzile.
4. Industrial and Public Facilities
Iziteshi zamandla zasembonini, izikhungo zamandla ezakhiweni eziphakeme, imigede/imihubhe, ukuhlangabezana nezidingo zokuhlinzekwa kwamandla aphezulu.
VI. Amaphuzu Asemqoka Okukhetha Nokucushwa
1. Ukubalwa Kwesikhundla
Bala amandla kagesi adingekayo ngokusekelwe ohlotsheni lomthwalo (injini / i-rectifier / i-air conditioner) kanye nomgomo we-power factor (≥0.95), bese ugcina u-10% - 20% wemajini.
2. Ukukhethwa Kwemodi Yokushintsha
Umthwalo Ozinzile: Iswishi ehlanganisiwe / i-contactor (ekhethekile futhi efanele)
Ukushintsha okusheshayo komthwalo: I-TSC dynamic compensation (impendulo ≤ 20ms)
Izimo ezinama-harmonic: Engeza ama-reactor achungechunge angu-7% - 14%.
3. Ukucushwa Kokuvikela Kumele kufake ukuvikela kokushintsha kukagesi okungaphezulu/okungaphansi, ukwehluleka kwe-phase; kwandise i-alamu yomkhawulo we-harmonic endaweni ye-harmonic; imithwalo ebalulekile kufanele ifakwe i-fault linkage tripping.
VII. Isifinyezo
Idivayisi ye-GGJ low-voltage reactive power intelligent compensation igxile ekulawuleni okuhlakaniphile, ukukhokhelwa okusebenzayo, nokwethembeka kwezokuphepha. Kuyisixhobo esibalulekile sokonga amandla ezinhlelo zokusabalalisa amandla aphansi. Ifanele izimo ezahlukahlukene ezidinga ukuthuthukisa i-power factor, ukunciphisa ukulahleka komugqa, nokwenza ngcono ikhwalithi yamandla. Ingalinganiswa ngqo nama-transformer angu-100 - 630 kVA futhi isize izinkampani ukuthi zifinyelele ekwehliseni izindleko, ukuthuthukisa ukusebenza, nokusetshenziswa kukagesi okuhambisana nemithetho.