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This compact packaged 33kV compact substation integrates high-voltage distribution, transformer step-down, and low-voltage distribution functions. With a rated capacity of 500 kVA, the 500 kVA compact substation has a small footprint and is well suited for urban grid expansion and upgrading projects as well as power distribution in industrial parks.
The 33kV 500kVA compact substation is a factory-prefabricated, integrated outdoor packaged power distribution unit designed for medium- and high-voltage distribution applications. It integrates 33kV high-voltage switchgear, an oil-immersed distribution transformer, low-voltage distribution equipment, protection and control systems, and auxiliary devices inside an enclosed housing, delivering the core advantage of “factory pre-assembly and rapid on-site commissioning.
• IP54 protection rating
• Stable operation in complex outdoor climates
• Zero-maintenance design
• 3-year warranty
Product Features
It combines 33kV high-voltage switchgear, a 500kVA oil immersed transformer, low-voltage distribution, and protection/control systems in one unit, forming a 33kV compact substation with a small footprint, fast installation, and rapid energization on site.
It uses high-permeability grain-oriented silicon steel and a 45° step-lap core, delivering low loss, high efficiency, lower power consumption, and reduced operating cost over the long term — making this 500 kva compact substation ideal for long-term deployment.
The enclosure adopts a C4/C5 high-grade anti-corrosion coating that resists rust, UV, and aging, allowing long-term stable operation in harsh outdoor environments.
A high-quality core and rigorous structural design provide a uniform magnetic circuit, low noise, and quiet, reliable operation.
Technical Parameters
| 33kV 500kVA Compact Substation | |
| Model | 33kV 500kVA Compact Substation |
| Rated Capacity | 500 kVA |
| Rated Voltage | 33kV / 0.4kV |
| Frequency | 50Hz (60Hz customizable) |
| Phase | 3-phase |
| Vector Group | Dyn11 |
| Impedance Voltage | 4.0% (adjustable within ±5%) |
FAQ
Both models integrate a professional compact substation transformer, MV switchgear and LV distribution panel in one sealed enclosure. Our factory finishes full wiring and testing in workshop to shorten on-site installation cycles greatly.
Yes, we supply oil-immersed and dry-type compact substation transformer options. Dry types fit indoor fire-sensitive sites, while oil-cooled ones match outdoor 33kv compact substation and standard 500 kva compact substation distribution projects.
They serve industrial parks, mining zones and residential districts. The compact substation transformer inside stabilizes voltage for medium-load power supply, and the 33kv/500kva units save land space compared with traditional separate transformer rooms.
With regular routine maintenance, the built-in compact substation transformer can run 25–30 years. Our 33kv compact substation and 500 kva compact substation adopt anti-corrosion enclosures to extend transformer service life outdoors.
All our compact substation transformer, 33kv compact substation and 500 kva compact substation pass strict IEC type tests. We offer complete certification documents for overseas bidding, engineering delivery and local power grid inspection.
Whatsapp: +86-13961294414
E-mail: junqiu.wang@czguanghui.cn
jocelyn.duan@czguanghui.cn
ADD: No. 1, Yulong Middle Road, Xuejia Town, Xinbei District, Changzhou City, China
Mobile: 0086-15380068868
