Misalai yadda ake amfani da zafi mai karamin shiga da yawa wanda ke kan gida da kuma abubuwan da suka dacewa Kamar haka zafi mai karamin shiga da yawa na iya aiki a cikin gida ko kuma wurare da mutane miliyan da suka dacewa kamar haka kuliya masu shirya da kuma abubuwan da suke dacewa daidai da kula da shirya a cikin gida misali masu shirya da kula da tsakiyar jirgin sama da kuma abubuwan da suke dacewa daidai da kula da shirya a cikin gida

Mai zama wani gida na Switchgear?

Gida na switchgear shine wani fasahar karkashin kuliya da ke bayar kuliya zuwa masu amfani da kuliya na tsakiyar hanyar. Yana da kyau cewa yake da shirye-shiryoyi na karkashin kuliya (da wasu shirye-shiryoyi na fuskantar kuliya), tafiyar karkashin kuliya, da kuma shirye-shiryoyi na karkashin kuliya na tsakiya. Fasahohi na iko da karkashin kuliya da 10kV ko kadan sun fi son kamar gidajen karkashin kuliya na tsakiya ko tsakiyar hanyar. Gida na karkashin kuliya na tsakiya ya danganta da 6kV–10kV, idan gida na karkashin kuliya na tsakiyar hanyar yana nufin gida na karkashin kuliya na 400V da ke bayar kuliya daga tafiyar karkashin kuliya na 10kV ko 35kV.

Abubuwan da ke cikin Gida na Switchgear:

(1) Kirkiro Karkashin Kuliya (Switchgear Substation)

Amsa mai ma'ana na kirkiro karkashin kuliya da kawai shirye-shiryoyi na karkashin kuliya, kirkiro karkashin kuliya ta yi aiki na kula kuliya ba da wucin abincika da fuskantar kuliya. Ana da shirye-shiryoyi na karkashin kuliya don kula kuliya, da kuma za a iya samun tafiyar karkashin kuliya.

(2) Kabinta na Shirye-Shiryoyi na Fuskantar Kuliya

Ko kuma kabinta na kula kuliya, wannan shirye-shiryoyi na ke kula kuliya daga busbar zuwa cikin shirye-shiryoyi na fuskantar kuliya. Yana da kyau cewa yake da circuit breakers, current transformers (CT), potential transformers (PT), disconnect switches, da sauransu.

(3) Kabinta na Shirye-Shiryoyi na Amfani (Receiving Cabinet)

Wannan kabinta na ke samun kuliya daga grid (daga shirye-shiryoyi na amfani zuwa busbar). Yana da kyau cewa yake da circuit breakers, CTs, PTs, da disconnect switches.

(4) Kabinta na PT (Potential Transformer Cabinet)

Wannan kabinta na ke haɗa da busbar, yana ƙunshi rarrabe voltage na busbar da kuma yadda ake kula. Abubuwan da suka da su sun hada da potential transformers (PT), disconnect switches, fuses, da surge arresters.

(5) Kabinta na Isolator

Ana amfani da wannan kabinta don kula duwatsuwa masu busbar ko kuma kula abin da ake amfani da kuliya daga shirye-shiryoyi, wanda ya ba maimakon da shiga don inganci da jirgin kula. Saboda kabinta na isolator ba zan iya kula load currents, ba zan iya amfani da withdrawable unit (ba da shiga ko fitowa) idan circuit breaker ya kashe. Ana da muhimmanci a yi interlocking mechanisms bayan auxiliary contacts na circuit breaker da isolator trolley don kula aikatau aiki.

(6) Kabinta na Bus Coupler (Bus Tie Cabinet)

Ko kuma kabinta na bus sectioning, yana ƙunshi kula duwatsuwa masu busbar (bus-to-bus). Ana amfani da shi a cikin systems na single busbar sectionalized ko double busbar don bayar karfin aiki ko kula selective load shedding a lokacin da cutar da shiga.

(7) Kabinta na Capacitor (Reactive Power Compensation Cabinet)

Ana amfani da wannan kabinta don ƙara power factor na grid—ko kuma reactive power compensation. Abubuwan da suka da su sun hada da banks of parallel-connected capacitors, switching control circuits, da protective devices kamar fuses. Kabinta na capacitor suna da shiga waɗanda suka da shirye-shiryoyi na amfani, da kuma za su iya amfani baya ko da shirye-shiryoyi.

Bayan an kula capacitor banks daga grid, ya kamata a yi ƙarin discharge. Saboda haka, ba zan iya shiga abubuwan da ke cikin kabinta, musamman capacitors, ba. A kan lokacin da ake kula (muhimmiyar kapasiti na capacitor bank, misali 1 minute), ba zan iya sake kula don kula overvoltage wanda zai iya ƙara capacitor. Idan ana amfani da automatic control, ya kamata a yi ƙara management da cycles na switching na har daidai don kula aikatau aiki.