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
This three-phase America-type box substation folds a PV inverter boosting device into the package, stepping 10 kV down to 400 V. A dead-front distribution…
| Parameter | Value |
|---|---|
| Type | Box-Type PV Inverter Boosting Device (America Type) |
| Transformer | Oil-Immersed |
| Input Voltage | 10 kV |
| Output Voltage | 400 V |
| Phase | Three Phase |
| Frequency | 50 / 60 Hz |
| Winding Material | Copper / Aluminium |
| Vector Group | Dyn11 / Yyn0 |
| Ambient Temperature | -40 C to +45 C |
| Standard | IEC / GB |
| Certification | ISO9001 |
| Packaging | Wooden Case |
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.
This three-phase America-type box substation folds a PV inverter boosting device into the package, stepping 10 kV down to 400 V. A dead-front distribution cabinet, an externally mounted oil-immersed transformer, and an inverter/HV enclosure all sit on one skid — a complete inverter-and-step-up solution for solar power plants.
Photovoltaic power stations, energy-storage step-up applications, and new-energy inverter-plus-boost grid-connection projects.
Capacity, voltage ratio, inverter rating, enclosure colour, and cabinet configuration can be adjusted on request.
Each unit is manufactured to order against the confirmed specification. Please provide the capacity, voltage ratio, and application when enquiring.
The images shown are illustrative marketing renders; the unit actually delivered is manufactured to the specification confirmed at order.
Combines a PV inverter and boosting device in one America-type package; Steps 10 kV input down to 400 V for photovoltaic collection; Dead-front distribution cabinet paired with an oil-immersed booster transformer.
Capacity, voltage ratio, inverter rating, enclosure colour, and cabinet configuration can be adjusted on request.
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.