Dry Type Transformer
10 kV Class · 50–2500 kVA · IEC 60076-11
Epoxy cast resin dry-type transformers for indoor, commercial and data center applications — IEC 60076-11 aligned.
Designed for practical power-asset applications
Cast-resin dry-type transformers for indoor distribution, commercial buildings and industrial installations. The final design is selected around voltage ratio, capacity, enclosure, cooling method, impedance and applicable approval requirements.
What we confirm before quotation
We coordinate the technical and commercial details with the appropriate manufacturing partner before confirming price, lead time and documents.
Supply format
Project-configured equipment supplied through qualified manufacturing partners; rating, documentation and delivery schedule are confirmed before order acceptance.
Typical document package
Datasheet, dimensional or wiring information, inspection records and export documents are provided where applicable to the selected configuration.
Please include in your inquiry
- kVA
- Voltage
- Certification requirements
Technical Specifications
| Standard | IEC 60076-11 |
| Type | Three-phase epoxy cast resin dry-type |
| Rated Capacity | 50 – 2500 kVA (standard export range) |
| HV Voltage | 6, 6.6, 10, 10.5, 11 kV |
| LV Voltage | 0.4 kV (400 V); other LV on request |
| Vector Group | Dyn11, Yyn0 |
| Insulation Class | F (155°C) standard; H (180°C) optional |
| Temperature Rise | 100 K (F) / 115 K (H) at AN cooling |
| Impedance Voltage | 4% (≤160 kVA); 4–6% (200–630 kVA); 6% (800–1600 kVA); 6–8% (≥2000 kVA) |
| Partial Discharge | ≤ 10 pC typical at 1.5× Ur (factory test) |
| Cooling | AN (air natural); AF upgrade ≈20–30% capacity boost |
| Enclosure | IP20 standard; IP23 / IP54 optional |
| Certification | Approval documentation confirmed for the selected configuration |
Parameters above reflect standard export configurations. Exact values for your voltage class, ratio or kVA rating are confirmed against the factory datasheet in the quotation before order acceptance.
Available Models
| Model | Specification |
| 50–630 kVA | 10 kV class · impedance 4–6% · AN |
| 800–1600 kVA | 10 kV class · impedance 6% · AN/AF |
| 2000–2500 kVA | 10 kV class · impedance 6–8% · AN/AF |
Exact ratings for your system voltage and duty are confirmed in the quotation against the factory datasheet. Custom configurations available on inquiry.
Features & Benefits
Cast-Resin Insulation
Epoxy cast-resin windings provide a clean, low-maintenance insulation system for indoor distribution service.
AN / AF Cooling
Natural-air cooling is standard; forced-air fan kits can be specified when the approved thermal design requires additional capacity.
Low Partial Discharge
Factory test criteria and resin processing are specified to support stable insulation performance over the transformer service life.
Project-Matched Enclosure
IP20, IP23 or higher enclosure options can be coordinated with the room layout, ventilation and touch-protection requirements.
Typical Applications
Indoor power distribution for offices, hospitals, retail facilities and other occupied buildings.
Compact, low-maintenance transformer supply for critical power rooms, subject to the project short-circuit and redundancy design.
Plant distribution and motor-control power systems where indoor installation and reduced oil-related risk are preferred.
Auxiliary and collection-system distribution for solar, BESS and other energy projects with project-specific enclosure requirements.
Frequently Asked Questions
What information is needed for dry-type transformer selection?
Provide kVA rating, HV/LV voltage, frequency, vector group, impedance, cooling duty, enclosure rating, installation altitude and required standards.
Can the transformer be supplied with forced-air cooling?
Yes. AF cooling and the associated fan control arrangement can be specified when required by the approved thermal design.
Are CE or UL documents available?
Compliance documentation is confirmed for the selected design and destination market; UL-related requirements must be defined before quotation.
