Njengamanje, ama-diesel generators asetshenziswa kabanzi kwizimboni ezahlukahlukene futhi yimishini kagesi eyintandokazi yokuhlinzeka ngamandla okusekelayo uma kwenzeka kukhishwa amandla kagesi noma ukusetshenziswa kwansuku zonke ngamabhizinisi. Ama-Diesel Generator ajwayele ukusetshenziswa kwezinye izindawo ezikude noma imisebenzi yensimu. Ngakho-ke, ngaphambi kokuthenga i-Diesel Generator, ukuze uqinisekise ukuthi i-generator ingakwazi ukuhlinzeka ngogesi ngokusebenza okuhle kakhulu, kuyadingeka ukuthi kube nokuqonda okucacile kwama-Kilowatts (kW), i-Kilovolt Amperes (KVA), ne-Poverc (PF) Umehluko phakathi kwabo kubalulekile:
I-Kilowatt (KW) isetshenziselwa ukukala ugesi wangempela onikezwe ama-generator, asetshenziswa ngokuqondile yimishini kagesi nemishini ezakhiweni.
Ukukala amandla asobala kuma-Kilovolt Amperes (KVA). Lokhu kufaka phakathi amandla asebenzayo (KW), kanye namandla okusebenza kabusha (kvar) adliwe yimishini efana nama-motors nabaguquli. Amandla asebenzayo awadliwanga, kepha ajikeleza phakathi komthombo wamandla nomthwalo.
I-Power Factor yisilinganiso samandla asebenzayo ukuze abukele amandla. Uma isakhiwo sidla i-900kw ne-1000kva, isici samandla ngu-0.90 noma 90%.
Igama le-Diesel Generator lilinganise amanani we-KW, KVA, ne-PF. Ukuqinisekisa ukuthi ungakhetha i-Diesel Generator efanelekayo kakhulu, isiphakamiso esihle kakhulu ukuba nonjiniyela wogesi ochwepheshe anqume usayizi wesethi.
Ukukhishwa okuphezulu kwe-kilowatt kwe-generator kunqunywa yinjini yedizili okushayela. Isibonelo, cabanga nge-generator eqhutshwa yinjini eyi-1000 yamahhashi yamahhashi esebenza kahle ngo-95%:
I-horsepower eyi-1000 ilingana nama-745.7 ama-kilowatts, okuwo amandla shaft anikezwe i-generator.
Ukusebenza kahle kwama-95%, amandla okukhipha okuphezulu we-708.4kw
Ngakolunye uhlangothi, i-tale ampere enkulu ye-kilovolt incike kumandla kagesi alinganiselwe nawamanje we-generator. Kunezindlela ezimbili zokulayisha ngokweqile isethi ye-generator:
Uma umthwalo oxhumene ne-generator wedlula ama-kilowatts alinganiselwe, uzolayisha ngokweqile injini.
Ngakolunye uhlangothi, uma umthwalo weqa i-KVA ekalwe, kuzolayisha ngokweqile i-generator winding.
Kubalulekile ukukugcina lokhu engqondweni, ngoba uma umthwalo ama-Kilowatts ungaphansi kwenani elilinganiselwe, i-generator ingalayisha ngokweqile ngama-amperes e-kilovolt.
Uma isakhiwo sidla i-1000kW kanye ne-1100kva, isici samandla sizokhuphuka sibe ngama-91%, kepha ngeke sidlule umthamo wesethi ye-generator.
Ngakolunye uhlangothi, uma i-generator isebenza ngo-1100kw no-1250kva, isici samandla sanda kuphela ku-88%, kepha injini yedizili igcwele kakhulu.
Ama-Diesel Generator angalayishwa ngokweqile nge-KVA kuphela. Uma imishini isebenza ngo-950kw no-1300kva (73% pf), noma ngabe injini yedizili ayilayishwa ngokweqile, izintambo zisazolayishwa ngokweqile.
Ngamafuphi, ama-Diesel Generator angadlula isici sawo samandla alinganiselwe ngaphandle kwenkinga, inqobo nje uma i-KW ne-KVA bahlala ngaphansi kwamanani abo alinganiselwe. Akunconyelwe ukusebenza ngaphansi kwe-PF ekalwe, njengoba ukusebenza kahle kwe-generator kuphansi. Ekugcineni, ukweqisa okuphezulu kwe-KW noma isilinganiso se-KVA kuzolimaza imishini.
Izici zamandla ezihola futhi ezilambisayo zithinta kanjani abakhiqizi bedizili
Uma kuphela ukumelana kuxhumeke ku-generator kanye namandla kagesi futhi namanje kulinganiswa, ama-waveform awo e-ac azofanisa lapho ekhonjiswa kwithuluzi ledijithali. Amasiginali amabili ahlukile phakathi kwamanani amahle nezingalungile, kepha awela bobabili 0v no-0A ngasikhathi sinye. Ngamanye amagama, ama-voltage kanye namanje asesigabeni.
Kulokhu, isici samandla omthwalo yi-1.0 noma i-100%. Kodwa-ke, isici samandla semishini eminingi ezakhiweni akuyona i-100%, okusho ukuthi i-voltage yabo neyamanje izokwehla komunye nomunye:
Uma i-Peak AC Voltage ihola i-Peak yamanje, umthwalo unento ephakeme kakhulu yamandla. Imithwalo enalokhu kuziphatha ibizwa ngokuthi yimithwalo ebabazekayo, efaka ama-motors kagesi nabaguquli.
Ngakolunye uhlangothi, uma kuholela khona njengamanje ama-voltage, umthwalo unento ehola phambili yamandla. Umthwalo onalokhu kuziphatha ubizelwe umthwalo we-capacitive, okubandakanya amabhethri, amabhange eCapacitor, kanye namadivayisi athile kagesi.
Izakhiwo eziningi zinemithwalo emikhulu kakhulu kunemithwalo ye-capacitive. Lokhu kusho ukuthi isici samandla asonke sivame ukugcwala, futhi amasethi we-diesel generator enzelwe ngqo lolu hlobo lomthwalo. Kodwa-ke, uma ukwakhiwa kunemithwalo eminingi ye-capacitive, umnikazi kufanele aqaphele ngoba i-generator votage izoba yingozi njengoba isici samandla sithuthuka. Lokhu kuzoqala ukuvikelwa okuzenzakalelayo, ukunqamula idivaysi esakhiweni.
Isikhathi sePosi: Feb-23-2024