Projects
Engineering sheets for a delivered 33 kV/11 kV substation in Kenya and fourteen representative configurations — solar, wind, mining, microgrid, industrial and storage — across Africa, the Middle East, Asia, Europe, Oceania and Latin America. Each sheet explains the engineering problem, the system configuration, the installation sequence and what we need to quote a comparable project.
The Kenya project is a delivered and commissioned installation. Sheets marked reference design illustrate a typical configuration of that equipment type in a plausible national setting; the images are representative visualisations, not photographs of a specific customer site.
33 kV prefabricated step-up substation — Wind-power collection system. 33 kV collector system; step-up ratio fixed against the grid connection point…
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2 MWh liquid-cooled containerized battery energy storage system with PCS and transformer — Industrial renewable-energy integration, peak shaving and…
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33 kV/11 kV distribution substation — transformer, RMU, LV switchgear, power distribution cabinets and related accessories — Urban and peri-urban…
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13.8 kV containerized substation with compact transformer and switchgear — Coastal island microgrid with solar generation and local distribution…
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11 kV/0.4 kV cast-resin dry-type transformer, indoor installation — Platinum mining and mineral-processing surface facility. 11 kV primary / 0.4 kV…
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66 kV/11 kV oil-immersed grid transformer with radiator cooling and on-load tap changer — Utility transmission and distribution substation, desert…
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35 kV/10 kV thermally insulated prefabricated substation — Remote industrial power supply. 35 kV incoming / 10 kV outgoing, 50 Hz.
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5 MWh liquid-cooled containerized battery energy storage system with PCS and 22 kV step-up transformer — Solar-farm energy storage and grid support…
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13.8 kV/480 V compact substation with coordinated MV and LV switchgear and bus duct — Automotive components manufacturing plant. 13.8 kV incoming /…
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22 kV/0.4 kV compact prefabricated substation — Industrial manufacturing facility. 22 kV incoming / 0.4 kV outgoing, 50 Hz.
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33 kV/13.8 kV oil-immersed power transformer bay — Utility-scale photovoltaic power station. 33 kV / 13.8 kV, 60 Hz.
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11 kV/0.4 kV pole-mounted distribution transformer — Rural distribution network extension. 11 kV incoming / 0.4 kV outgoing, 50 Hz.
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20 kV/0.4 kV containerized prefabricated substation — Remote mining and mineral-processing facility. 20 kV incoming / 0.4 kV outgoing, 50 Hz.
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11 kV metal-clad switchgear lineup with low-voltage distribution — Large commercial building complex. 11 kV incoming / low-voltage distribution, 50…
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34.5 kV/480 V three-phase pad-mounted transformer, dead-front — Utility photovoltaic power plant. 34.5 kV collector / 480 V inverter side, 60 Hz.
Read the project sheet →| Region | Typical standard | Frequency |
|---|---|---|
| Europe, UK, Türkiye | IEC 60076 / IEC 62271 (CE, UDEM) | 50 Hz |
| Middle East & Africa | IEC, with utility specifications | 50 Hz (60 Hz in Saudi Arabia) |
| Southeast Asia & Oceania | IEC / AS-NZS references | 50 Hz (60 Hz in the Philippines) |
| North America | ANSI / IEEE C57, UL-style | 60 Hz |
| Latin America | ANSI/IEEE or IEC by country | 60 Hz (Brazil, Mexico) / 50 Hz (Chile, Argentina) |
| CIS / EAEU | GOST, EAC declaration | 50 Hz |
Frequency is not decoration. A 50 Hz core design is not interchangeable with a 60 Hz one, and pad-mounted or pole-mounted units for the Americas follow different voltage classes, BIL levels and terminal conventions. Each project sheet states the frequency and standards basis it was written for.
For any comparable enquiry, Millenium can adjust the voltage ratio and tapping range, capacity, vector group and impedance, offer copper or aluminium windings, and provide oil-immersed or cast-resin construction with the cooling class, enclosure IP rating and protection scheme the site requires.