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Description
The prefabricated substation in the YB series integrates high-voltage switching, a transformer and low-voltage distribution in a factory-assembled enclosure. Its published range covers 50–2000 kVA and 6, 10 or 35 kV high-voltage options, with the equipment layout selected before transport to the installation site.
Prefabricated Substation — YB Series — Key Features
- Factory pre-assembly of the distribution equipment.
- Integrated HV, transformer and LV sections.
- Enclosed arrangement for outdoor installations.
- Layout selected to suit the project wiring and cable routes.
- Defined capacity, voltage and component choices for project procurement.
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). The applicable requirements and test programme are to be agreed in the project specification.
Applications
- New industrial facilities.
- Commercial construction projects.
- Urban infrastructure distribution.
- Renewable-energy installations.
