Technical Parameters & Ratings
IEC / ANSI CertifiedFactory Standard
| Rated Capacity | 250 kVA |
|---|---|
| Primary Voltage (U1) | 11,000 V (11 kV) |
| Secondary Voltage (U2) | 415 V / 240 V (3-Phase 4-Wire) |
| Vector Group | Dyn11 |
| Rated Frequency | 50 Hz |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Primary Current (I1) | 4.37 A |
| Secondary Current (I2) | 347.8 A |
| Guaranteed No-Load Loss (P0) | 400 W |
| Guaranteed Load Loss (Pk at 75°C) | 2750 W |
| Short-Circuit Impedance (Uk) | 4.0% |
| 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 | 560 kg |
| Insulating Oil Weight | 370 kg |
| Total Assembled Weight | 1120 kg |
| Overall Footprint (L×W×H) | 1200 mm × 820 mm × 1380 mm |
| Governing Standards | IEC 60076, BS 171, SON NIS, NERC Code |
Application Scenarios
- Latin American utility distribution and rural electrification projects
- Industrial facilities operating on 60 Hz ANSI power systems
- EPC contractor packages for Americas and Caribbean infrastructure
- Renewable energy grid connection in 60 Hz markets
Key Features
- 250 kVA rated capacity configured for 60 Hz ANSI and Latin American grids
- high voltage class matching standard ANSI distribution voltages
- Designed to ANSI/IEEE C57.12 guidelines with IEC 60076 cross-reference capability
- 60 Hz frequency rating for Americas, Caribbean, and parts of Southeast Asia
- Copper or aluminum winding available; pad-mount and substation configurations supported
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