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R-type Series - Single Phase Transformers
R-type transformers use a round R-core for low leakage flux, low noise and low loss. 10-2000 VA, 220 V primary, ideal for precision instruments and audio equipment.
Model Number Breakdown
Key Features
- Round R-core design minimizes leakage flux and noise
- Low no-load loss and low temperature rise
- Compact, slim profile for space-constrained equipment
- Wide 10-2000 VA range for precision instruments
Applications
- Industrial power systems
- Commercial buildings
- Infrastructure projects
TECHNICAL DRAWING
Model: R100 | Type: Oil-immersed transformer | Capacity: 100 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 | 5–5000 VA |
| Input voltage | 220V |
| Output voltage | 36V |
| Frequency (Hz) | 50/60 |
| Efficiency | ≥85%, ≥90%, ≥93% |
| Allowed temperature rise | ≤65 K |
| Short-circuit impedance | ≤8% |
| Insulation class | Class B (130°C) |
| Compare | Model | Series | Capacity (kVA) | Input voltage | Output voltage | Frequency (Hz) | Weight | Dimensions |
|---|---|---|---|---|---|---|---|---|
| R-5 | R-type | 5VA | 220V | 36V | 50/60 | 30 kg | 220×190×230 mm | |
| R-8 | R-type | 8VA | 220V | 36V | 50/60 | 45 kg | 255×220×265 mm | |
| R-10 | R-type | 10VA | 220V | 36V | 50/60 | 55 kg | 280×240×290 mm | |
| R-20 | R-type | 20VA | 220V | 36V | 50/60 | 90 kg | 350×300×350 mm | |
| R-25 | R-type | 25VA | 220V | 36V | 50/60 | 110 kg | 375×320×370 mm | |
| R-30 | R-type | 30VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R-40 | R-type | 40VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R50 | R-type | 50VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R80 | R-type | 80VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R100 | R-type | 100VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R160 | R-type | 160VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R260 | R-type | 260VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R320 | R-type | 320VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R600 | R-type | 600VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R1000 | R-type | 1000VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R1500 | R-type | 1500VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R2000 | R-type | 2000VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R3000 | R-type | 3000VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 mm | |
| R5000 | R-type | 5000VA | 220V | 36V | 50/60 | 130 kg | 400×340×390 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.
Reference prices are for estimation only and do not constitute a formal offer.
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