Umbhali wezimali we-Dingxin we-220kV yokuqondisa e-Tanzania

U-Dingxin wabeka umbhali wezimali we-220kV ovela emafutheni okukhokha kumsebenzi wezimali e-Tanzania. Okwakhiwe ukuthi usebenze kwezimali zokukhokha eziningi, umbhali wezimali uqondisa ukuthi uyasebenza ngokwesibonelo esihle, ukuthi ukhokha kwezimali kuyisikhathi eside, ukuthi ukhokha kwezimali kuyisikhathi eside, nokuthi ukhokha kwezimali kuyisikhathi eside.

Izidingo Zomsebenzi

Umsebenzi wadinga umbhali wezimali othembekile ukuthi asebenze ngokwesibonelo esihle kwezimali eziningi futhi akhokhe izimali eziningi noma ukuthi akhokhe izimali eziningi. Izinqulabuli ezithembekile ziyizinto ezilandelayo:

• Ukusebenza okuphelele kwezimali we-220kV
• Izinkinga ezincane zokusebenza ngaphandle nokusebenza ngaphakathi
• Ukuphakanyiswa kwamathuba amancane nokushusha kokusebenza
• Ukuqinisa kwezinkinga zokugcina kwezikhathi zokuphakanyiswa kwamandla
• Ukuhlanza kwezinkambo zokuhlisa amandla
• Ukufaka nokuhlela kuhle
• Isikhathi eside sokusebenza nokunciphisa izindleko zokusebenza

Ukuthatha isimo nesilinganiso esihlelwe

Umbhalali we-Dingxin wasebenzisa isoftiweya yokuqondisa okuphelele nokubhalwa kwezindleko nezindleko zokuzivindiza ukuhlela iziqondiso zesikhundla sesikhundla. Lezi zilungile kakhulu: isikhundla sokubeka amandla, izihlalo, isikhundla sokusebenza, izihlalo, isikhundla sokuvimbela, isikhundla sokuhlisa amandla, nokuthenga.

Izinkambo zokusebenza, ukusula, ukubamba, nokuvimbela zilahlwe ngokwesibonelo esiningi. Le nkqubo yokuzivindiza yonke yasiza ukuthi isikhundla sifanele kulezi zinkambo zokusebenza ngokwesikhathi sokusebenza futhi ngokwesikhathi sokusebenza esihlukene.

Umklamo owenziwe waba ngcono futhi wanciphisa ukusetshenziswa kwezinto ezingadingekile futhi wathuthukisa isilinganiso samandla nesisindo se-transformer ngaphandle kokuphazamisa amandla omshini, ukuthembeka kokuhlukanisa, noma ukuphepha kokusebenza.

Ukwenziwa nokugcina ubunzima

Lesi sishintshi sakhiwa kusetshenziswa imishini esezingeni eliphakeme, izinto ezikhethwe ngokucophelela, nezinqubo zokukhiqiza ezilawulwayo. Ukunakwa okukhethekile kwanikezwa ukuhlanganiswa kwenhliziyo, ukukhiqizwa kokugoqa, ukwelashwa kokuhlukanisa, ukomiswa kwengxenye esebenzayo, ukucutshungulwa kwamafutha, ukwenziwa kwamathangi nokuhlanganiswa kokugcina.

Phakathi nayo yonke inkathi yokukhiqiza, kwaqashwa amapharamitha abalulekile okukhiqiza ukuze kuqinisekiswe ukunemba kobukhulu nekhwalithi engaguquguquki. I-unit ephelele yahlolwa futhi yahlolwa ngokuphelele ngaphambi kokulethwa.

Imiphimbo Yeqhuma

U i-transformer enezigaba ezintathu engu-220kV ipulatifomu isekela amandla abekiwe kusuka ku-31,500kVA kuya ku-240,000kVA, enama-voltage aphezulu angama-220kV noma ama-230kV kanye nokuhlelwa kokuxhumeka okujwayelekile kwe-YNd11.

Ngokuya ngomthamo okhethiwe, uhla lwemikhiqizo lunikeza:

• Amathuba okungabi nalo ukusebenza kusuka ku-35kW ku-160kW
• Amathuba okusebenza kusuka ku-135kW ku-567kW
• Umgangatho wokungabi nalo ukusebenza kusuka ku-0.42% ku-0.70%
• Ukusebenza okubi kakhulu kwe-partial-discharge
• Ukusebenza okuncane kwezinye zokushisa
• Izinsizakalo ezincane futhi zihlelwe ngokuphelele ukubhala izinhlaka
• Ukusebenza okuhle kwezinkulungwane zokugcina isikhathi nezinkulungwane zokugcina isikhathi

Ukugcina kokugcina kwezinhlelo zokusebenza kungahlelwa ngokulinganisa ukukhula kwezinhlelo, uhlelo lwesifunda, uhlelo lwesifunda, indlela yokugcina isikhathi, indawo yokufaka, nokuthi kuyasebenza njani kwezinhlelo zokusebenza zokugcina isikhathi.

Isiphumo Seprojekthi

Isilumkiso sokugcina isikhathi esisindisiwe sibiza umsebenzi wokugcina isikhathi okuphelele kwa-Tanzania. Ukugcina isikhathi okubi kakhulu kusiza ekuvuseleleni kwe-grid, futhi ukugcina isikhathi okubi kakhulu kwe-noise nokugcina isikhathi okubi kakhulu kwe-partial-discharge kusiza ekuvuseleleni kwezinhlelo zokusebenza ezihle futhi ziyasebenza ngokuphelele kwezinhlelo zokusebenza zokugcina isikhathi.

Ngokugcina isikhathi okuhle, ubukhulu bokugcina isikhathi obuhle, nokuthi kunezinhlelo zokugcina isikhathi ezinconywayo, isilumkiso sokugcina isikhathi sisiza ekugcineni amathuba okusebenza okuphelele ngokuphelele futhi sisiza ekuvuseleleni kwezinhlelo zokusebenza ezihle futhi ziyasebenza ngokuphelele kwezinhlelo zokusebenza zokugcina isikhathi.