Ring Main Unit vs Metal-Clad Switchgear (KYN28): Choosing MV Switchgear for a Distribution Substation
Compare RMUs and metal-clad KYN28 switchgear on IEC 62271-200 classes, fault levels, extensibility, protection and cost.
· 9 min readCompact & Box-Type Substations
Built for new-energy power collection, this custom outdoor European box substation accepts either 35 kV or 10 kV input and steps it down to 440 V output. An…
| Parameter | Value |
|---|---|
| Type | Prefabricated Box Substation (New Energy, Europe Type) |
| Transformer | Oil-Immersed |
| Input Voltage | 35 kV / 10 kV |
| Output Voltage | 440 V |
| Protection Class | IP54 |
| Phase | Three Phase |
| Frequency | 50 / 60 Hz |
| Winding Material | Copper / Aluminium |
| Vector Group | Dyn11 / Yyn0 |
| Standard | IEC / GB |
| Certification | ISO9001 |
| Packaging | Wooden Box |
Designed and tested to IEC / GB. Millenium production is certified to ISO 9001, ISO 14001 and ISO 45001; the product family carries CE (ECM), UDEM attestation and an EAC declaration of conformity. Every unit passes routine factory tests before dispatch.
Built for new-energy power collection, this custom outdoor European box substation accepts either 35 kV or 10 kV input and steps it down to 440 V output. An oil-immersed booster transformer and its switchgear share a single IP54 enclosure, making the unit purpose-fit for step-up duty on solar, wind, and energy-storage sites.
Suited to photovoltaic plants, wind farms, and battery energy-storage systems that need new-energy step-up and grid interconnection.
We can adjust enclosure colour, capacity, input voltage class, transformer type, and switchgear configuration to order.
Each unit is manufactured to the specification confirmed with the customer. Please tell us the required capacity, voltage class, and application when you enquire.
The images displayed are illustrative marketing renders; the unit actually delivered is built to the specification confirmed at order.
Purpose-built new-energy step-up substation in the European box format; Handles 35 kV or 10 kV input, delivering 440 V output; Combines an oil-immersed booster transformer with integrated switchgear.
We can adjust enclosure colour, capacity, input voltage class, transformer type, and switchgear configuration to order.
Designed and tested to IEC / GB. Millenium production is certified to ISO 9001, ISO 14001 and ISO 45001, and the product family carries CE (ECM), UDEM attestation and an EAC declaration of conformity.
Quotation
Tell us the rating, voltages, frequency, quantity and destination. An engineer replies with a technical proposal, usually within one working day.