Technical Parameters & Ratings
IEC / ANSI CertifiedFactory Standard
| Rated Capacity | 5000 kVA (ONAN) / 6300 kVA (ONAF Forced Air) |
|---|---|
| Primary Voltage | 33 kV / 34.5 kV (Delta, BIL 170 kV) |
| Secondary Voltage | 4.16 kV / 6.6 kV / 13.8 kV / 400 V (Star with Neutral) |
| Frequency | 60 Hz (Latin America / USA) / 50 Hz (IEC Standard) |
| Vector Group | Dyn11 / YNd11 |
| Altitude Rating | Designed for High-Altitude Andean Mining (>3,500m to 4,800m ASL) |
| Cooling Type | ONAN / ONAF (Liquid Immersed with Radiators & Forced Air Fans) |
| No-Load Losses (Po) | 3.8 kW (High-Grade Silicon Steel Step-Lap Core) |
| Load Losses (Pk at 75°C) | 38.5 kW (100% Electrolytic Oxygen-Free Copper) |
| Short-Circuit Impedance (%Z) | 6.5% standard (tolerance ±10%) |
| Insulation Fluid | Mineral Oil (IEC 60296 Class II) / FR3 Synthetic Ester Optional |
| Bushings Creepage Distance | Extra-High Creepage (>31 mm/kV) Anti-Pollution Porcelain Bushings |
| Tank Construction | Heavy-Duty Corrugated Conservator Tank with C5M Anti-Corrosion Marine Paint |
| Protection Devices | Buchholz Relay, Magnetic Oil Level Gauge (MOG), WTI & OTI with Alarm Contacts, Pressure Relief Device |
| Standards Compliance | IEC 60076, ANSI/IEEE C57.12.00, OSINERGMIN / CNE (Peru SEIN Grid Compliant) |
Application Scenarios
- Andean copper, zinc & gold mining site substations, utility intake, heavy industrial smelting mills, and solar farm collector stations.
Features
- Specially engineered high-altitude insulation and extended bushing creepage preventing flashover at low atmospheric pressures up to 4,800m ASL.
- 100% Electrolytic oxygen-free copper windings with stepped mitered silicon steel core, delivering ultra-low loss and superior short-circuit dynamic withstand.
- Full instrumentation suite including double-float Buchholz relay, dial-type oil/winding thermometers with microswitches, and rapid pressure relief valve.
Standards
- 100% Factory Acceptance Testing (FAT) including power-frequency withstand, lightning impulse, partial discharge (<5pC), and CNAS routine test submittals.
