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Description
The European type box substation in the YB series houses high-voltage switching, a distribution transformer and low-voltage distribution equipment in an enclosed assembly. Its published table covers 50–2000 kVA and 6, 10 or 35 kV high-voltage options for installation near urban, industrial and rural loads.
European Type Box Substation — YB Series — Key Features
- Integrated HV, transformer and LV sections.
- Oil-immersed or dry-type transformer arrangements described in the product specification.
- Insulated enclosure with ventilation paths.
- Temperature-controlled forced ventilation.
- Pre-installed equipment for placement on a prepared concrete foundation.
Technical Parameters
| Parameter | Value |
|---|---|
| Transformer capacity | 50–2000 kVA |
| HV rated voltage | 6 / 10 / 35 kV |
| Rated frequency | 50 Hz |
| HV rated current | 400 / 630 A |
| LV rated voltage | 380 / 220 V |
| LV main circuit rated current | 100–3200 A |
| Reactive compensation capacity | 0–360 kvar |
| Transformer impedance | 4% / 6% |
| Tapping range | ±2 × 2.5%; ±5% |
| Connection groups | Yyn0 / Dyn11 |
Standards
Technical specification reference: IEC 62271-202:2022 (AC prefabricated substations). GB references: GB/T 17467-2020. The applicable requirements and test programme are to be agreed in the project specification.
Applications
- Urban local distribution.
- Industrial facilities.
- Rural substations.
- Distribution close to load centres.
