Din da yawan farko a bayan pad-mounted substation da traction substation?

Maidugwari Substation (Box-Type Substation)

Takaitaccen:
Maidugwari substation, wanda kuma ana kiranta da sunan prefabricated substation ko pre-assembled substation, shi ne unit ta kammalinta karkashin kasa da ake gudanar da ita a cikin factory, wanda yake hanyar zaba-zabu na high-voltage switchgear, distribution transformer, da low-voltage distribution equipment tare da wiring scheme na musamman. Yana dace masu functions masu voltage step-down da low-voltage power distribution zuwa daya a kan unit mai kyau a kan enclosure mai steel mai kyau da ya kai, wanda yake mai karfi, rust-resistant, dust-proof, rodent-proof, fire-resistant, theft-resistant, da thermal insulation. Yana da muhimmanci wajen urban power grid construction da upgrades, wanda yake new type na small-scale substation da ya faru bayan substations na civil-built masu shekaru. Tushen, yana sauki high voltage zuwa low voltage—misali, conversion 10 kV zuwa 380 V don industrial ko residential use.

Maidugwari substations suka amfani da su a mines, industrial plants, oil and gas fields, da wind power stations, inda suke canzawa conventional civil-built distribution rooms ko substations da suka zama new type na integrated transformer and distribution assembly.

Maidugwari substation (wanda ake kiranta da “box sub” ko “box-type sub”) yana da compartments uku: high-voltage room, transformer room, da low-voltage room. Yana da transformer da ke da general engineering guidelines, da typical capacities ba za su iya bazu 1,250 kVA.

Temporary box substations suka nufin units da ake gudanar da su don short-term use—misali, temporary transformer a construction site—that zai zama da removal ba da project ends da suka zama don permanent installation.

Function:
Maidugwari substations suka amfani da su a high-rise residential buildings, luxury villas, plazas, parks, residential communities, small-to-medium factories, mines, oilfields, da temporary construction power applications, don receive and distribute electrical energy within distribution systems.

Location:
First, suka amfani da su a urban residential neighborhoods da along streets. During peak electricity demand periods when additional capacity or voltage support is needed, maidugwari substations suke amfani.
Second, suka amfani da su don temporary power supply—misali, a construction sites where existing buildings require electrical system upgrades. Suke amfani da su a field operations, including construction sites, ports, airports, da similar locations.

Traction Substation

Takaitaccen:
Traction substation yana convert three-phase 110 kV (ko 220 kV) high-voltage AC power daga regional grid zuwa two single-phase 27.5 kV AC outputs, wanda suke supply overhead contact lines (rated at 27.5 kV) on both the up-track and down-track directions of a railway. Each side of the contact line yana kiranta da "feeding arm." The two arms sun yi work a different voltage phases da suke separate da phase-break insulator. Bayan adjacent traction substations, contact line voltages suna da in-phase; in addition to phase-break insulators, sectioning post (ko switching kiosk) yana da a bayan them. Through circuit breakers ko disconnect switches at the sectioning post, bilateral (ko unilateral) power supply modes zai iya zama.

Traction substation yana receive electric power daga regional power system da yake convert it into a form suitable for electric railway traction based on specific current and voltage requirements. The converted power yana delivery zuwa overhead contact wires above railway tracks to supply electric locomotives, ko zuwa underground metro ko urban tram systems to power subway trains ko trolley cars.

Along an electrified railway line, multiple traction substations suka fito, typically spaced about 40–50 kilometers apart. In long-distance electrified railways, additional "booster" ko "intermediate" traction substations suka fito approximately every 200–250 kilometers to segment the high-voltage transmission line da limit fault impact zones. These intermediate substations not only perform standard transformation functions but also distribute incoming high-voltage power via their busbars and feeders to other intermediate substations downstream.