I-Electrical Substation idlala indima ebalulekile ekusabalaliseni ugesi, iqinisekisa ukuhlinzekwa okuthembekile ezindlini, amabhizinisi, kanye nezimboni. Ngesakhiwo sayo esiqinile kanye nezingxenye ezithuthukisiwe, isebenza njengehabhu elibalulekile lokudlulisa nokuguqula amandla kagesi.

Isakhiwo sesiteshi esincane sihlanganisa izingxenye ezihlukahlukene, okuhlanganisa ama-transformer, ama-circuit breaker, nama-switchgear, ahlelwe ngendlela ehlelekile. Ama-transformer anesibopho sokukhuphula noma ukwehlisa amandla kagesi ukuze adlulise futhi asabalalise ngempumelelo. Ama-Circuit breaker avikela isistimu ekulayishweni ngokweqile nakumasekethe amafushane, kuyilapho i-switchgear ivumela ukuhlukaniswa nokulawulwa kwezigaba ezahlukene zenethiwekhi.

Isiteshi esincane sivamise ukuba nemibhoshongo, ehlinzeka ngosekelo lwezintambo zokudlulisa ezihamba phezulu ezixhuma kwezinye iziteshi ezincane noma izimboni zokuphehla ugesi. Le mibhoshongo iklanyelwe ukumelana nezimo zezulu ezinzima, okwenza inethiwekhi kagesi ikwazi ukumelana nezimo.

Ngokuphatha kahle ukugeleza kwamandla kanye nokuguqulwa kwamandla kagesi, isiteshi sikagesi siqinisekisa ukudluliswa kukagesi okuthembekile nokungaphazanyiswa. Idlala indima ebalulekile ekugcineni uzinzo kanye nekhwalithi yokuphakelwa kukagesi, ekugcineni kuzuzise abasebenzisi bokugcina.