Spécifications techniques
| Capacité nominale | 3150 kVA |
|---|---|
| Primary Voltage (U1) | 11,000 V (11 kV) |
| Secondary Voltage (U2) | 415 V / 240 V (3-Phase 4-Wire) |
| Vector Group | Dyn11 |
| Fréquence nominale | 50 Hz |
| Méthode de refroidissement | ONAN (Oil Natural Air Natural) |
| Primary Current (I1) | 55.11 A |
| Secondary Current (I2) | 4382.4 A |
| Guaranteed No-Load Loss (P0) | 2800 W |
| Guaranteed Load Loss (Pk at 75°C) | 21000 W |
| Short-Circuit Impedance (Uk) | 5.0% |
| HV Insulation Level | LI 75 / AC 35 (11kV Class) |
| Temperature Rise Limits | Top Oil ≤ 50K, Winding ≤ 55K (45°C Ambient) |
| Creepage Distance | ≥ 31 mm/kV (Outdoor Tropicalized Porcelain) |
| Core & Coil Weight | 4500 kg |
| Insulating Oil Weight | 2600 kg |
| Total Assembled Weight | 8900 kg |
| Overall Footprint (L×W×H) | 2300 mm × 1480 mm × 2400 mm |
| Governing Standards | IEC 60076, BS 171, SON NIS, NERC Code |