The SBK series three-phase dry-type isolation transformer is a high-performance, energy-saving power system solution that meets international and national standards, including IEC439 and GB5226. The transformer has a wide power range from 300VA to 1600KVA, for use with AC 50Hz to 60Hz and voltage below 2000V. It adopts advanced construction technology, including vacuum impregnation, and provides excellent insulation and reliability. It can be specially customized according to different requirements of users.
Main features and advantages
Dry type: oil-free, safer and more environmentally friendly.
Low loss: energy-saving, low iron loss.
Anti-interference: prevent electrical noise.
High insulation: F-class or H-class insulation, durable.
Custom voltage: can be customized according to customer requirements.
Model Meaning
| Model | SBK □ |
| S | three-phase |
| B | Transformer |
| K | Control |
| □ | rated capacity |
Technical Parameters
| Model NO. | SBK |
| Capacity | 0.5KVA 1KVA 2KVA 3KVA 5KVA |
| Input voltage | 220V 380V 400V 415V 440V 480V 660V or Customized |
| Output voltage | 660V 480V 440V 415V 380V 220V or Customized |
| Voltage Accuracy | ±1% |
| Voltage variation rate | ≤1.5% |
| Waveform Distortion | No distortion (compared to input waveform) |
| Insulation Grade | Class F, H, HC available (class F as a rule) |
| IP Rating | IP200 / IP20 |
| Efficiency | ≥98% |
| Applicable frequency | 50/60Hz |
| Ambient temperature | -5 ℃~+40℃ |
| Dielectric strength | 3000VAC/1min |
| Connection method | Yyn0 DYn11 or Customized |
| Overload capability | More than 1.2 times of the rated load to work for 4 hours |
| Sound level | ≤50dB(within 1m) |
| Working environment | Temperature: -20℃~+45℃, Humidity: ≤95% RH no condense |
| Installation environment | Non-corrosive gas and conductive dust |
| Standard | ISO9001, CE, VDE0550, IEC439, GB226 |
Specifications
| MODEL | Input voltage | Output voltage | Measurement(mm) Length*Width*Height |
| SBK-0.5KVA | 220V 380V 400V 415V 440V 480V 660V or Customized | 660V 480V 440V 415V 380V 220V or Customized | 120*88*120 |
| SBK-1KVA | 180*120*155 | ||
| SBK-2KVA | 180*140*155 | ||
| SBK-3KVA | 240*145*205 | ||
| SBK-5KVA | 240*155*205 |
High temperature wire: resistant to 180°C, double insulation, low loss, good insulation, not easy to oxidize and long service life.
Selected silicon steel sheets: high magnetic permeability, low energy loss.
H-level insulation: can withstand 3500V withstand voltage test to ensure product safety.
Customized wiring terminals: The transformer core has two forms of high-temperature resistant BT terminal wiring and insulation board wiring, which are beautiful and safe and can be customized according to customer needs.
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