Thông số kỹ thuật
| Công suất định mức | 400 kVA |
|---|---|
| Primary Voltage (U1) | 33,000 V (33 kV) |
| Secondary Voltage (U2) | 415 V / 240 V (3-Phase 4-Wire) |
| Vector Group | Dyn11 |
| Tần số định mức | 50 Hz |
| Phương pháp làm mát | ONAN (Oil Natural Air Natural) |
| Primary Current (I1) | 7.0 A |
| Secondary Current (I2) | 556.5 A |
| Guaranteed No-Load Loss (P0) | 570 W |
| Guaranteed Load Loss (Pk at 75°C) | 3900 W |
| Short-Circuit Impedance (Uk) | 4.0% |
| HV Insulation Level | LI 170 / AC 70 (33kV Class) |
| Temperature Rise Limits | Top Oil ≤ 50K, Winding ≤ 55K (45°C Ambient) |
| Creepage Distance | ≥ 31 mm/kV (Outdoor Tropicalized Porcelain) |
| Core & Coil Weight | 780 kg |
| Insulating Oil Weight | 490 kg |
| Total Assembled Weight | 1550 kg |
| Overall Footprint (L×W×H) | 1320 mm × 880 mm × 1480 mm |
| Governing Standards | IEC 60076, BS 171, SON NIS, NERC Code |