Product Search
Find the right transformer for your needs
Images are for illustration purposes only
VFS Series - Variable Frequency Supply Transformers
The VFS series variable frequency supply transformers provide reliable voltage transformation for variable frequency power sources, supporting adjustable-speed drive and test systems. Dry-type construction with Class F insulation ensures stable operation across the frequency range.
Model Number Breakdown
Key Features
- Compatible with variable frequency sources
- Stable output across frequency range
- Class F insulation, dry-type design
- Suitable for drive and test systems
Applications
- Variable frequency drive supplies
- Adjustable-speed test equipment
- Laboratory power systems
- Frequency conversion installations
TECHNICAL DRAWING
Model: VFS-15KVA | Type: Oil-immersed transformer | Capacity: 15 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 | 1–100 kVA |
| HV Voltage (kV) | 0.38 |
| LV Voltage (kV) | 0.15, 0.2, 0.12, 0.6, 0.11, 0.4… |
| Frequency (Hz) | 0-400 |
| Impedance (%) | 6 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VFS-10KVA | VFS | 10kVA | 0.38 | 0.15 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 55 kg | 280×240×290 mm | |
| VFS-20KVA | VFS | 20kVA | 0.38 | 0.2 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 90 kg | 350×300×350 mm | |
| VFS-3KVA | VFS | 3kVA | 0.38 | 0.12 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 20 kg | 190×170×200 mm | |
| VFS-100KVA | VFS | 100kVA | 0.38 | 0.6 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 350 kg | 550×460×550 mm | |
| VFS-1KVA | VFS | 1kVA | 0.38 | 0.11 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 10 kg | 140×130×150 mm | |
| VFS-2KVA | VFS | 2kVA | 0.38 | 0.11 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 15 kg | 170×150×180 mm | |
| VFS-60KVA | VFS | 60kVA | 0.38 | 0.4 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 230 kg | 470×395×470 mm | |
| VFS-50KVA | VFS | 50kVA | 0.38 | 0.35 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 200 kg | 450×380×450 mm | |
| VFS-15KVA | VFS | 15kVA | 0.38 | 0.17 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 75 kg | 320×270×320 mm | |
| VFS-5KVA | VFS | 5kVA | 0.38 | 0.12 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 30 kg | 220×190×230 mm | |
| VFS-30KVA | VFS | 30kVA | 0.38 | 0.25 | 0-400 | 6 | AN | GB/T 1094, IEC 60076 | 130 kg | 400×340×390 mm |
Instant Selection & Quote Calculator
Select your specifications to get an estimated price instantly.
More options(2)
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.
3 · Get this quote
We will reply with your latest quote instantly.
Related Engineering Calculators
Free sizing and pricing tools for this product category.