
Maimaito mai girma da ake amfani da shi a cikin prosesi na kafuwar zabe ta karamin kasa (AC), wanda ke taimaka masu kafuwar zabe su don kare gida daga bincike zuwa 'yan istifada. Wannan muhimman zaɓu ake jagoranci hukuma da ke bayyana manyan hukuma, kalmomi, darajar, kudin tsarin, tsarin gyara, da kuma kudin binadu. Don yankin Turai, wannan hukumomin suna cikin International Electrotechnical Commission (IEC) standards:
IEC 62271-1: Ke bayyana manyan hukuma game da karamin kasa mai girma da ake amfani da shi.
IEC 62271-200: Yana nuna karamin kasa mai girma da ake amfani da shi a cikin AC, wanda ke amfani da shi a matsayin tsari na karamin kasa daga 1 kV zuwa 52 kV.
IEC 62271-300: Yana nuna karamin kasa mai girma da ake amfani da shi a cikin gas-insulated, wanda ke amfani da shi a matsayin tsari na karamin kasa daban-daban 52 kV.
Idan IEC standards suna da la'akari a duniya, orin kamar Amurka, Sin, da Rasha zai iya daɗe da hukumomin da suka. A kan Section 3.5 of IEC 62271-1, duk muhimman zaɓu na karamin kasa suna bayyana, wanda ke taimaka don gyaran karamin kasa mai ban sha'awa da kiyasin da ake amfani da su a cikin mafi girma mai girma. Wannan kiyasun yana haɗa da:
Kafuwan zabe ta karamin kasa daga bincike zuwa 'yan istifada.
Taimakawa da kafuwar arziki.
Gyaran kafuwar zabe da take da muhimmanci don kiyasun alama, kiyasun gwamnati, da kuma kiyasun bayarwa.
Samun hanyoyin kafuwar zabe da kiyasun.
Amfani da hanyoyin kiyasun, kisan kiyasun, da kuma kiyasun kiyasun.
Amfani da tashar kiyasun bayan karamin kasa da SCADA ko DCS systems don kiyasun kiyasun da kiyasun.
Samun hanyoyin 'yan adawa a cikin substations.
Duk da hukumomin da ake amfani da shi, akwai duk daɗi da ake amfani da shi, wanda ake amfani da shi a matsayin hukumomin. IEC standard yana nuna bayanai game da air-insulated da gas-insulated technologies, wanda tsarin gyara yana faruwa saboda matsayin na karamin kasa a cikin network da kuma kiyasun da ake bukata. Karamin kasa mai tsari masu kyau yana buƙata hanyoyin kiyasun da kiyasun masu kyau.
Tsarin gyara na primary air-insulated medium voltage switchgear (AIS) yana haɗa da hukumomin da ake amfani da shi, wanda ke taimaka don kiyasun kiyasun da kiyasun a cikin mafi girma mai girma. Wannan tsarin gyara yana taimaka don kiyasun kiyasun da kiyasun.

Tsarin gyara na Medium Voltage Switchgear Basic Structure Compartment
Wannan tsarin gyara, wanda ake nuna a Figures 1, 2, da 3, yana haɗa da hukumomin da ake amfani da shi, wanda ke taimaka don kiyasun kiyasun da kiyasun. Wannan tsarin gyara yana haɗa da hukumomin da ake amfani da shi don kafuwar zabe da kiyasun kiyasun a cikin karamin kasa.
Wannan tsarin gyara yana taimaka don:
Metal-Based Segregation: Tsarin gyara yana taimaka don kiyasun kiyasun da kiyasun a cikin compartments, wanda ke taimaka don kiyasun kiyasun da kiyasun.
Arc Withstand Capability: Tsarin gyara yana taimaka don kiyasun kiyasun da kiyasun a cikin arc-proof doors, wanda ke taimaka don kiyasun kiyasun da kiyasun.
A nan, tsarin gyara yana taimaka don kiyasun kiyasun da kiyasun, wanda ke taimaka don kiyasun kiyasun da kiyasun. Wannan tsarin gyara yana taimaka don kiyasun kiyasun da kiyasun, wanda ke taimaka don kiyasun kiyasun da kiyasun.

Medium Voltage Switchgear Circuit Breaker Compartment
Wannan compartment, wanda ake nuna a Figures 1, 2, da 3, yana haɗa da hukumomin da ake amfani da shi a cikin kafuwar zabe. Wannan compartment yana iya daɗe da hukumomin da ake amfani da shi, wanda ke taimaka don kafuwar zabe da kiyasun. A cikin primary air-insulated MV panels, circuit breakers su ne ake amfani da shi. Yanzu, vacuum interrupting technology yana da muhimmanci a cikin mafi girma mai girma saboda kiyasun da kiyasun.
Medium Voltage Switchgear Cable Compartment
Wannan compartment, wanda ake nuna a Figures 1, 2, da 3, yana haɗa da hukumomin da ake amfani da shi a cikin kafuwar zabe. Wannan compartment yana iya daɗe da hukumomin da ake amfani da shi, wanda ke taimaka don kafuwar zabe da kiyasun. Wannan tsarin gyara yana taimaka don kiyasun kiyasun da kiyasun, wanda ke taimaka don kiyasun kiyasun da kiyasun.
A nan, duk muhimman zaɓu a cikin karamin kasa mai girma yana taimaka don kiyasun kiyasun da kiyasun a cikin kafuwar zabe.