| Product Type |
Three Phase Pad Mounted Transformer |
| Rated Capacity |
1500 kVA |
| Number of Phases |
Three Phase |
| Frequency |
50 Hz / 60 Hz |
| Primary Rated Voltage |
6.6 kV, 10 kV, 11 kV, 13.8 kV, 15 kV (project-specific) |
| Secondary Rated Voltage |
0.4 kV / 0.415 kV / 0.48 kV / 0.6 kV |
| Turns Ratio |
Determined by system voltage |
| Primary Rated Current |
Determined by primary voltage level |
| Secondary Rated Current (480 V) |
≈ 1804 A |
| Secondary Rated Current (415 V) |
≈ 2087 A |
| Secondary Rated Current (400 V) |
≈ 2165 A |
| Cooling Method |
ONAN (Oil Natural Air Natural) |
| Insulating Medium |
Mineral oil / Vegetable oil (optional) |
| Winding Material |
Copper or Aluminum winding |
| Primary Winding |
Copper / Aluminum foil winding |
| Secondary Winding |
Copper / Aluminum foil winding |
| Vector Group |
Dyn11 (most common) |
| Primary Connection |
Loop feed or radial feed |
| Secondary Connection |
Low voltage bushing output |
| Neutral Point |
Neutral point available on secondary side |
| Impedance Voltage |
5% ~ 6% (typically ≈ 5.75% for 1500 kVA) |
| No-Load Current |
≤ 1% ~ 2% |
| Voltage Regulation Method |
Off-circuit tap changer on primary side |
| Tap Range |
± 2 × 2.5% or ± 5% |
| Temperature Rise |
Top oil rise 55 K, average winding rise 65 K (standard) |
| Insulation Class |
Class A oil-immersed insulation |
| Rated Withstand Voltage |
Per IEC / ANSI requirements by voltage level |
| Lightning Impulse Withstand Voltage |
Configured per system voltage level |
| Noise Level |
Approx. 55 ~ 65 dB (per standard and capacity) |
| Protection Degree |
IP54 / IP55 |
| Enclosure Material |
Galvanized steel plate; stainless steel optional |
| Enclosure Structure |
Integrated HV compartment + transformer compartment + LV compartment |
| Primary Side Protection |
Plug-in fuse + load switch |
| Secondary Side Protection |
LV circuit breaker or LV switchgear |
| Grounding Method |
Enclosure grounding; HV and LV side grounding |
| Installation Method |
Outdoor ground-mounted (Pad Mounted) |
| Ambient Temperature |
-25°C ~ +40°C (standard); up to 50°C for Middle East design |
| Altitude |
≤ 1000 m; derating required above 1000 m |
| Corrosion Protection |
Standard C3; C4–C5 recommended for coastal / Middle East environments |