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3P-to-1P Series - Three Phase to Single Phase Conversion Transformers
The 3P-to-1P series phase-converting transformers supply balanced single-phase power from a three-phase source, ideal for feeding single-phase loads from three-phase networks. Dry-type construction with Class F insulation ensures dependable conversion.
Model Number Breakdown
Key Features
- Converts three-phase to single-phase
- Balanced single-phase output
- Class F insulation, dry-type design
- Suitable for commercial and industrial loads
Applications
- Single-phase loads on three-phase networks
- Commercial building supplies
- Industrial single-phase equipment
- Balanced load distribution
TECHNICAL DRAWING
Model: 3to1-50KVA | Type: Oil-immersed transformer | Capacity: 50 kVA
FRONT ELEVATION
ELECTRICAL SCHEMATIC
EFFICIENCY vs LOAD
SIDE VIEW
TOP VIEW
TERMINAL BLOCK
CORE & WINDING
LEGEND:
Specifications Range
All specifications and dimensions can be customized upon request
Model Selector
| Key parameters | Model Range |
|---|---|
| Capacity | 5–200 kVA |
| HV Voltage (kV) | 0.38 |
| LV Voltage (kV) | 0.38 |
| Frequency (Hz) | 50/60 |
| Impedance (%) | 4 |
| Cooling | AN |
| Standard | GB/T 1094, IEC 60076 |
| Compare | Model | Series | Capacity (kVA) | HV Voltage (kV) | LV Voltage (kV) | Frequency (Hz) | Reactance | Cooling | Standard | Weight | Dimensions |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3to1-15KVA | 3P-to-1P | 15kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 75 kg | 320×270×320 mm | |
| 3to1-50KVA | 3P-to-1P | 50kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 200 kg | 450×380×450 mm | |
| 3to1-150KVA | 3P-to-1P | 150kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 490 kg | 590×495×590 mm | |
| 3to1-75KVA | 3P-to-1P | 75kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 280 kg | 500×420×500 mm | |
| 3to1-100KVA | 3P-to-1P | 100kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 350 kg | 550×460×550 mm | |
| 3to1-20KVA | 3P-to-1P | 20kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 90 kg | 350×300×350 mm | |
| 3to1-10KVA | 3P-to-1P | 10kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 55 kg | 280×240×290 mm | |
| 3to1-30KVA | 3P-to-1P | 30kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 130 kg | 400×340×390 mm | |
| 3to1-5KVA | 3P-to-1P | 5kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 30 kg | 220×190×230 mm | |
| 3to1-200KVA | 3P-to-1P | 200kVA | 0.38 | 0.38 | 50/60 | 4 | AN | GB/T 1094, IEC 60076 | 620 kg | 650×540×650 mm |
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Certification
The values below are computed from what you selected above. Anything that cannot be computed yet is shown as an em dash — never as zero.
Iₙ = S / (√3·U) · I_sc = 100·Iₙ / uₖ · S_sc = √3·U·I_sc · I_p = k·Iₖ
Still required to complete the calculation: rated capacity S, impedance voltage uₖ, short-time or peak withstand current.
Per-model values (P0 / Pk / uₖ declared by the factory, losses, noise, temperature rise, dimensions, weight) are not in the product library: those rows stay at an em dash until the factory parameter sheet is supplied. An em dash means the value is unavailable — it is never rendered as zero.
Read-only: no price factor, not part of the sum — the loss-grade cost is already carried by the efficiency (subtype) base price, so charging here would double-bill. Values come from the product library type-test data, interpolated between published capacities; grades the library does not cover show an em dash, never zero.
特种/隔离/控制变压器（产品库逐型号 noLoadLoss，无独立能效档维度）
Reference prices are for estimation only and do not constitute a formal offer.
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