Isiqhelo Sokufaka nokusakazela i-DC UPS

Ukuhlinzekwa Kabefore Ukufaka i-DC UPS

Ukuhlola Kwesithuthu: Isikhundla, Ubunzima Bekhona, Nomlando Wokuphakeme

Ukuqala ukufaka izi-DC UPS ngokuphelele kuyasiba kubona ukuthi kusenzeka ukubhala isikhundla ngokugcwele kuqala. Abalungisi kufanele bakhombise ukuthi indawo ayikwazi ukubeka umbono wokuphakama kwesiqhelo esingu-1.5 kN ngametereshabangqa lapho izibanki zemithambo ezingabiyo ziya kubeka. Kunezinto ezingavumelekile kakhulu ukuthi kunezindawo eziningi zonke ezinkulu — ngaphezu kwezintathu amashumi amabili (80 cm) phambi nokhuluma ukuze kwenziwe ukuzivisa emva kwalokho. Ukuchaza okuphakade kubalulekile kakhulu futhi. Uma kushisayo ngaphezu kwezintathu amashumi amabili nezinhlanu (25°C) (okuyizinkampani ezingama-77), izimithambo ziyakwisha kabusha. Funa futhi ukuthi umthwalo wezilwane (humidity) awusizi ngaphezu kwezinkampani ezingama-60 ngoba lokhu kuyakubusa ukuvula kwezinye izinto emva kwalokho. Kukhomba ukuthi kufanele kubekwe ukuvula kwezinye izinto ngaphezu kwezintathu amashumi amabili ngamuhla, ngokuphakade kuzo zonke izinto ezihlakazisa ukuchaza. Uma kusebenza kwezindawo ezingaphakade noma ezinokuthi ziyabuka ngokuthi zingafika kwezinsuku zezinkanyezi (earthquakes), ungakhohlwa ukuthi uzifunde ukuthi zibe nesibhakabhaka sokuthi sibaleke ngokuphelele. Qiniseka ukuthi izindlebe ziyabheke ngokuphelele ukuze abantu baphume ngokuphelele emva kwalokho kuzo zonke izindlebe zokuphuma, njengoba i-NFPA 75 ibhekisele kuzo.

Ukuhambanana Nokuziphatha Kwezinhlelo Zokuphepha: Inqaku ye-NEC 690.71, IEEE 1184, kanye nezinhlelo zasekhaya

Ukuhamba kusukela ekuphelweni kwezimpendulo kuyiqala nge-NEC Article 690.71, okuyisivumelwano esibonisa izinkinga zokusebenza ngokuvamile kwezinkulungwane zezinkulungwane zebhatereyi nezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkulungwane zezinkul......

Ukugxilwa Kwemithambo Yomthambo We-DC UPS: Ukubhala, Ukugxila Emhlabeni, Nokuphepha Kwezindlela Zomthelelo Womthelelo

Ukukhetha Kwemithambo, Imiphumela Yomthelelo Ophakathi, Nokulungisa Umkhondo We-EMI Kwemithambo Yomthelelo We-DC UPS

Kukulandela ubukhulu be-conductor, abaholi bengenisa emlandweni izinto eziningi eziphambili kubona ubukhulu be-DC okuphelele, isikhathi esikhulu sokusebenza kwesikhala, nokuthi ukuthi kuyiziphi izintemperetsha ezisemthwakathini. Lezi ziqinisekisa ukungafanele ukuthi izihluzi ziyakhula kakhulu noma kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kufanele ukuthi kuf......

Isitategisi sokugcina emhlabeni yezinhlelo zokusebenza zokuphinda kwe-DC: Izindlela eziningi zokugcina emhlabeni enye nokugcina kusenqumeni

Ukubondiwa kwe-point e yodwa kuyisisekelo sokukhulula izinkinga zokugcina izikhundla zokugcina (ground loops) ozokubeka isiphumo esingavumelekile kumaziko we-DC UPS futhi zizameka ukwenza izinkinga zokubhalwa. Indima iyisisekelo kakhulu: yilokho ukubhinda konke kuleli lekhaya elinye. Konke okuqukethwe kwe-chassis, amatereminali amanegativi kwe-batteries, nokubuyela kwamadokumenti we-DC kufanele kuhambiswe kuleli lekhaya elikhethekile le-busbar. Futhi, kubalulekile ukugcina lokhu kususelwa kwezikhundla zokugcina ze-AC. Lokhu kwenza ntoni? Kuzoba kubonakala emaqengetweni ukuthi kunciphisa izinkinga zokugcina ngokuphathelene nokugcina kwezikhundla eziningi ngaphezu kwe-90%. Ukuncoma okwengeziwe ukuthi amandla angafana ayofika kususela kwezibalo, bheka ukuthi ubheke amapad e-isolation e-dielectric ngaphansi kwezirhakha zebattery. Kuvame ukuthi kubalulekile ukuxoxa ngamagalanic isolators kuzimpahla zokuxhumana. Lezi zinto zimfushane zikhiqiza amandla angafana ukuthi azenze izinkinga. Ngokwesiqephu se-industri njenge-IEEE 1184, kuyisisekelo sokubheka impedansi yokugcina ngasinye isithathu sesandla. Sifuna ukuthi ukuhlola ukuthi umkhawulo uyaphansi kwe-0.1 ohms ukuze amandla angafana akhangelwe ngokuphelele xa abe khona.

Ukugcinwa kwe-DC UPS nokufaka kuye ngokuzimisa ukusebenza kahle

Ukubhalwa kwe-Battery Bank: Ukulinganisa Kwesivinini, Ukulungiselela Amacell, nokulungiselela Ukuvalelwa Kwesikhathi Sokuhlala

Ukufunda kuthi ukubhala amabhanki we-battery kunezinga elikhulu ekuthinteni ukuthi izinhlelo zethu zizoba yiziphi zokuphepha nokudlula. Ukufunda ubukhulu obulinganayo, phindaphinda i-kilowatts ezidingekayo ngamalungu amakhulu ngamahour abayidinga ukusebenza ngeminyaka yokuqhubeka, emva kwalokho yenza okungekho kwe-20% futhi ukuze ube nomkhawulo njengoba ukuvula i-batteries kakhulu kuzoba kuzihlupha kakhulu. Bona lokhu kuchaza isibonelo esisebenzayo: uma into ethile iyadla i-5 kW futhi iyadinga ukusebenza ngamahour e-1, sizobhala ukuthi sindinga ukungena kwe-6 kWh wokusebenza kwakho. Ungakhohlwa ukubalansisa amacellular noma yikuphi uhlobo lwokubalansisa (okusha noma okugcina) lusiza ukubalansisa amavolt kuzo zonke izincelule zokuxhumana futhi akukho mhlupheka oyedwa oya kuhlupha konke. Uma usetshenzisa i-float voltage, qinisa ngokwesibonelo esithi kuyisibonelo sesifundo se-battery, okungekho kwe-2.25 ku-2.3 volts ngalunye ilungu le-sealed lead acid. Sebenzisa i-multimeter enenhloko yokuhle futhi ujonge ngokucophelela ngoba amaphutha amancane kungenza izinkinga eziphambili njenge-corrosion noma sulfation ngeminyaka. Futhi khumbula ukuzama ubukhulu be-battery ngokuphathelene nezindlela zokuzama ezithi kwi-IEEE standard 1188 ukuze uqinisekise ukuthi konke kusebenza njengoba kufanele eminyakeni yokuqhubeka.

Ukwenza Ukuseta Kwefirmware, Imiphumela Yokuxhumana, nokugcina Kwezinkqubo Zokubuka Ngaphandle

Ukusetha i-firmware kuhilela ukuchaza izinga le-alamu, ukuhlela ukuhlolwa okuzenzakalelayo, nokwakha inqubo yokuqeda umthwalo ngokwezinyathelo ezithile ngokuvumelana nezidingo zangempela zokusebenza. Ukuxhuma esakhiweni ingqalasizinda ngokuvamile kusho ukusebenza nge-standard protocols like Modbus TCP/IP lapho esebenzelana ne-industrial SCADA systems, noma SNMP kulabo abasungula i-IT yebhizinisi. Izindawo eziningi nazo ziyazuza ngokunika amandla i-telemetry esekelwe ku-MQTT ukuze ukufundwa kwevolthi, idatha yokushisa, isimo sebhethri, nama-logs omcimbi angageleza angene ohlelweni lokuqapha oluphakathi. Ukuphepha kungenye into ebalulekile kulezi zinsuku, ngakho ukusebenzisa ukubethela kwe-TLS 1.3 kuyo yonke imidiya ekude sekuyindlela evamile. Lapho kufika isikhathi sokuvuselela i-firmware, imiphumela emihle kakhulu ivela ekuyenzeni kuphela phakathi nezinkathi zokuzilungisa ezihleliwe. Ucwaningo lubonisa ukuthi izinhlelo ezingalungisiwe ziyahluleka izikhathi ezintathu kaningi lapho kunezinkinga zenethiwekhi kagesi (njengoba kuphawulwe yi-NFPA 2023). Ngaphambi kokuba isebenze, izakhiwo eziningi zivivinya ukuvala ukusebenza okuphelele kwamahora angu-72 ngaphansi kwezimo zokulayisha ezingokoqobo njengokuqinisekisa kokugcina ukuthi konke kusebenza njengoba kulindelekile.

Imibuzo Evame Ukubuzwa

Yiziphi izinhlayiya ze-DC UPS?

Isisitayela se-DC UPS yindlela efakwe ukukhupha umthelela wokubuyisa kwezinto eziphambili uma kufika ukungafiki kwezimali, ukunika umthelela wokusebenza ngokuthintana.

Kungani ubuningi bakho lokuhlola indawo bubi kakhulu kusukela kwezinyathelo zokufaka isisitayela se-DC UPS?

Ukohlola indawo kubi kakhulu ukuzazi ukhulu komkhosi wokugcina, imizimba yezimo zemvelo, nezinkinga zokuhlanganisa izindawo ukuze kuvunyelwe ukuthi isisitayela se-DC UPS singafakwa ngokweseka nokuthintana.

Izistandadhe ziphi kufanele zifolowe ukuziphatha ngokwemthetho kwezisitayela ze-DC UPS?

Ukuziphatha ngokwemthetho kwezisitayela ze-DC UPS kufune ukulandela i-NEC Article 690.71, i-IEEE 1184-2022, nezistandadhe zezindawo ezihlukene ngezindawo zokuhlanganisa, ukugcina, ukuphula kwamaphethini, njengoba kunezinye.

Kungani kufanele kubhekwe ukuthintana kwe-electromagnetic interference (EMI) kwezisitayela ze-DC UPS?

Ukuthintana kwe-EMI kufanele kubhekwe ngokusebenzisa amakhabelu amathathu, amakhabelu okugcinwa, amakhabelu we-ferrite, nokuhlanganisa ngokuphelele izicatshulwa ze-DC nezicatshulwa zesimali se-AC.

Ukugcina kwenye ndlela kufanele kusetyenziswa kwezisitayela ze-DC UPS?

Kufanele kusebenziswe imithambo yokuqondana kumathuluzi omunye nokuhlukunyaniswa ukuze kususwakaliswe ukubamba kwe-ground loops futhi ukuhlinzekile kwezinhlelo zokubhalwa kwezinhlelo zokuziphatha kuzosoloko.