Ukuvikelwa okwehlukile kuyindlela yokuvikela imigqa kagesi. Okuphakelayo okwehlukile, noma "umthwalo wesimanga" njengoba uvame ukubizwa kanjalo, unolayini owengeziwe wocingo osebenza ngokulingana futhi ugxilile ukuhlinzeka ngokuphepha okungeziwe uma kwenzeka noma yini ingahambi kahle ngohlangothi olulodwa lwamandla kagesi. Uhlelo lwamanje olusakaza i-Merz-Price ekuqaleni lwakhiwa abasunguli ababili baseJalimane abeza nalomqondo ngenkathi besebenza kwa-Siemens ezintanjeni zangaphansi kolwandle!
Kulokhu okuthunyelwe sizomboza:
- Kusho ukuthini ukuvikelwa okwehlukile?
- Ngabe abaphakeli bavikeleke kanjani?
- Kusetshenziswa kuphi ukuvikelwa okwehlukile?
- Yibuphi ubunzima bokuvikelwa kokuhlukaniswa?
- Uyini umehluko phakathi kwephutha lomhlaba ovinjelwe nokuvikelwa okwehlukile?
- Kuyini ukuvikelwa kokuhlukaniswa kwamaphesenti?
- Kukusiphi isisekelo ukuvikelwa okwehlukanisa okusekelwe?
Kusho ukuthini ukuvikelwa okwehlukile?
Ukuvikelwa okwehlukile ukuvikela uhlobo lweyunithi yezindawo ezithile noma okokusebenza. Umehluko wamanje phakathi kwemisinga yokufaka neyokukhipha ungaba phezulu kuphela uma kunamaphutha angaphakathi kuleyo ndawo, okusho ukuthi uvikeleke kakhulu ezinsongweni zangaphandle lapho kungeke kwaba khona umehluko omkhulu ngamandla akho angena kuwo; lokhu kusho nokuthi uma kukhona okungahambi kahle ngaphakathi lapho-ke uzokwazi ngoba i-alamu yohlelo kufanele ikhale ngasikhathi sinye!
Ngabe abaphakeli bavikeleke kanjani?
Abondli abaningi bavikelekile kumasekhethi amafushane. Esimweni lapho ugesi unqanyulwa ngokuzumayo, ikhefu lesifunda eliseduze nawo kufanele livuleke futhi onke amanye amakhefu ahlala evaliwe ukuze ugesi omncane ugeleze ngohlelo oselungazinzile lapho kwenzeka elinye iphutha kwenye indawo kulayini. Kubalulekile kepha ukuthi lokhu kuvikelwa kusekelwe ngabaphuli abasondelene nabo uma umuntu ehluleka- ngaphandle kwalokho kusengaba namaphutha amaningi abangela ukucima kukagesi noma okubi kakhulu, imililo!
Kusetshenziswa kuphi ukuvikelwa okwehlukile?
Ukuvikelwa okwehlukile uhlobo lokufakwa kwesistimu yamandla okuvikela amaphutha esigaba nesigaba kanye namaphutha asemhlabeni. Ama-transformer wamandla avikelwe yile ndlela, esebenza kumgomo wokujikeleza kwamanje okwenziwe ngo-1898 yi-Merz & Prize Company. Le ndlela ihlinzeka ngesilinganiso esingeziwe sokuvikela imishini yamandla aphezulu njengalezo ezilinganiswe ngaphezu komthamo we-2 MVA ekulimaleni ngenxa yokwenyuka kukagesi noma ukuxhumana nabanye abaqhubi lapho kungasebenzi.
Yibuphi ubunzima bokuvikelwa kokuhlukaniswa?
Ukuvikelwa okwehlukile kuyinkinga eyinkimbinkimbi, ngoba kubheka okuguqukayo okuningi. Isibonelo, izici ezingaguquguquki zesiguquli zingadala ukuthi ama-CTs angafanisiwe akhubeke ngaphambi kwesikhathi noma cha; ukuthepha isekethe kubangela ukungalingani okungaholela emililweni nasekuqhumeni ngenxa yokugeleza okwedlulele kwamanje (uzibuthe wamaguquli). Imisinga ye-magnetizing inrush ehlangatshezwe ngesikhathi sokuqalisa nayo inzima kumadivayisi wokuvikela ahlukile ukuphendula ngokushesha ngokwanele lapho evela ngoba izikhathi zawo zokuphendula ziyahlukahluka kuye ngokuthi zisheshe zibonakale kanjani izinguquko ngaphakathi kohlelo. Ukuvikelwa okwahlukile sekukhona isikhashana futhi kusalokhu kungenye yezindlela zethu ezinamandla kakhulu zokuvikela emaphutheni kuzo zonke izinhlelo ngaphandle kokuyekethisa izingqinamba zekhwalithi yamandla njengokufakwa kwamandla kagesi.
Uyini umehluko phakathi kwephutha lomhlaba ovinjelwe nokuvikelwa okwehlukile?
Umehluko phakathi kwephutha lomhlaba ovinjelwe nokuvikelwa okwehlukile ukuthi umuntu uthola amaphutha esigaba ngaphakathi kweTransformer ezinhlangothini zombili zokuqala nezesekondari, kanti omunye uthola amaphutha omhlaba endaweni esukela ku-Secondary emazombezombe eya kuma-Secondary CTs.
Kuyini ukuvikelwa kokuhlukaniswa kwamaphesenti?
Ukuvikelwa kokuhlukaniswa kwamaphesenti kungukudlulisa okuvikela uhlelo ngokusebenza nobudlelwano obunqamulelayo bamanje. I-Current transformer saturation, i-CT ratios engalingani kanye nohambo lokuhlupha konke kuyizinkinga okungenzeka ukuthi ugesi avikele kuzo lapho efaka noma egcina izinhlelo zikagesi.
Kukusiphi isisekelo ukuvikelwa okwehlukanisa okusekelwe?
Ukuvikelwa okwehlukile kusekelwe esimisweni sokuqhathanisa amanani kagesi amabili noma ngaphezulu. Isibonelo, i-relay ukusebenza kwayo kuncike ekuhlukaneni kwesigaba nobukhulu kuzokwazi ukuqhathanisa lezi zimfanelo ukuze kutholwe noma yiziphi izingozi ezingaba khona ngaphambi kokuba zithole ithuba lokwenza okuthile.
Futhi funda: lawa ma-hydrants amahle kakhulu angenawo iqhwa ongawacabangela ngenkatho yakho
Ngingu-Joost Nusselder, umsunguli we-Tools Doctor, umakethi wokuqukethwe, kanye nobaba. Ngiyakuthanda ukuzama okokusebenza okusha, futhi kanye nethimba lami ngidale izindatshana zebhulogi ezijulile kusukela ngo-2016 ukuze ngisize abafundi abathembekile ngamathuluzi namathiphu okwenza.
