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 heavy-duty distribution, this three-phase oil-type compact box substation is rated at either 4000 kVA or 5000 kVA for 25 kV / 35 kV service. An…
| Parameter | Value |
|---|---|
| Type | Oil-type Compact Box Substation |
| Rated Capacity | 4000 kVA / 5000 kVA |
| Rated Voltage | 25 kV / 35 kV |
| Rated Current | 630 A |
| Protection Class | IP65 |
| Enclosure Material | Aluminium-Zinc Coated Plate |
| Phase | Three Phase |
| Frequency | 50 / 60 Hz |
| Winding Material | Copper / Aluminium |
| Vector Group | Dyn11 / Yyn0 |
| Standard | IEC 60076 / IEC / GB |
| Certification | ISO9001 / ISO14001 / CE / CQC |
| Warranty | 2 Years |
Designed and tested to IEC 60076 / 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 heavy-duty distribution, this three-phase oil-type compact box substation is rated at either 4000 kVA or 5000 kVA for 25 kV / 35 kV service. An IP65 aluminium-zinc coated steel enclosure brings the high-voltage, transformer, and low-voltage rooms together in one weatherproof cabinet designed for demanding industrial and utility applications.
Suited to electric power transmission and distribution, large industrial facilities, mining and infrastructure projects, and medium-voltage utility networks.
Enclosure colour, capacity, voltage class, winding material (copper or aluminium), and compartment layout can be adjusted on request.
Units are manufactured to order against the confirmed specification. Please share the capacity, voltage class, and site requirements when enquiring.
The images shown are illustrative marketing renders; the delivered unit is manufactured to the specification confirmed at order.
The rated capacity is 4000 kVA / 5000 kVA, with an input voltage of 25 kV / 35 kV. Other ratings in the same series are quoted on request.
High-capacity options at 4000 kVA and 5000 kVA; Rated for 25 kV / 35 kV service at 630 A; IP65-rated aluminium-zinc coated steel construction.
Enclosure colour, capacity, voltage class, winding material (copper or aluminium), and compartment layout can be adjusted on request.
Designed and tested to IEC 60076 / 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.