Product Overview
Three-Phase Pole-Type Distribution Transformer from Subian Electric’s Xuzhou Factory
This particular three-phase pole-type distribution transformer is built for the effective and low-loss transmission of power used in overhead installations. It lowers the primary voltage of 11-33 kV to be used by consumers in the agriculture, commercial and residential sector. The device boasts a better than 98 percent efficiency rating and offers either oil-type or dry-type insulation along with a sturdy pole-mounted design.
Applications & circuit protection
The pole-type transformer works well in airborne distribution systems in which compact, dependable reduction of voltage is needed.
- Overhead systems: Three-phase distributions via poles.
- Residential applications: supply by community and neighborhood lines.
- Agricultural applications: pumping and farm supply.
- Industrial applications: small industrial loads and commercial loads.
Construction & operating reliability
Low-loss cores, professional winding and reliable cooling assure high performance and dependable service in outdoor pole-mounted applications.
- Efficiency >98% under rated loads
- Pole mounting for overhead network
- Dielectric oil or dry type insulation
- Rugged construction for outdoor operation
- Conforms to IEC / NEMA / DOE efficiency requirements.
Technical Parameter
| Parameter | Value |
| Rated capacity range | 30-2500 kVA |
| Voltage combination (HV) | 6 / 6.3 / 10 / 10.5 / 11 kV |
| Tap range | ±5% / ±2×2.5% |
| Voltage (LV) | 0.4 / 0.69 kV |
| Connection group | Yyn0 / Dyn11 / Yzn11 |
| No-load loss (typical range) | 100-2400 W |
| Load loss (typical range) | 630-24000 W |
| No-load current (typical range) | 0.5-2.3% |
| Short-circuit impedance | 4% |
| Primary voltage | 11 – 33 kV |
| Secondary voltage | 0.4 – 10 kV |
| Power rating | 50 – 2500 kVA |
| Frequency | 50/60 Hz |
| Efficiency | ≥98% at rated load |
| Insulation | Mineral oil (dry-type option) |
| Cooling | ONAN / ONAF (oil); AN/AF (dry) |
| Standard | IEC 60076 / NEMA / DOE |
Transformer Price & Factory Quotation
As a direct manufacturer, we price transformers based on the rated capacity, voltage combinations, materials used for the core and winding, extras included with the units as well as order quantities. Orders of containers as well as orders of distributors are placed at volume prices. Because the cost of materials fluctuates with the market, we issue written pricing offering current rates. Therefore, you will have to send a request for a quotation of Pole-Type Distribution Transformers indicating your required rated capacity and order quantity.
- Indeed, OEM / ODM promotes the brand without any effect on the base transformer price.
- Costs associated with spare cores, spare units as well as special packaging are estimated separately.
- The following terms are applicable for export orders: FOB / CIF / DDP.
How to Connect This Transformer
Verify prior to energizing the Pole-Type Distribution Transformer that both tap position is compatible with supply voltage and the connecting group corresponds to system connection. Connect HV bushings to the side of supply and LV terminals to that of the load. Ensure appropriate connection of earthing terminals.
- Note tap position and checking supply voltage.
- Use HV and LV terminals for power connections.
- Connect earthing terminals per standards.
This Transformer vs. Alternative Ratings
Compare typical configurations to select the correct rating:
| Item | This Product | Smaller / Larger Option |
| Capacity | As specified on this page | Lower or higher kVA available |
| Voltage | As specified | Other primary voltages available |
| Impedance | Per standard / custom | Adjusted to network requirements |
| Cooling | ONAN or AN/AF per type | Forced cooling option on request |
| Application | Distribution / power | Industrial, renewable or utility |
Export Markets & Country Compatibility
Throughout Asia, Africa, the Middle East, Latin America, and Europe, we provide Pole Type Distribution Transformer to distributors, utilities, and project customers. For each destination, we check the required voltage, frequency, connection group, and certification needs before starting production.
Transformer Dimensions, Weight & Packing
The dimensions and weights of transformers depend on the load rating, the voltage of the device, and the type of transformer. It is expected that units with a power rating of 100 kVA design will be 1000-1200 mm long, from 500 to 700 mm deep, and 1100-1400 mm tall and have a weight of approximately 600-900 kg. The dimension drawings will be provided for confirmation and will be checked at the time of order placement.
- The unit dimension drawing will be provided before the manufacturing process starts
- Packing will be carried out in accordance with the export standards and marking before lifting
- Please specify the way of transportation and port for delivery arrangement
Standards & certifications
This transformer has been produced as per the standards mentioned in IEC 60076 and has also been tested in accordance with the guidelines laid out by NEMA/DOE.
- Standards for design: IEC 60076.
- Efficiency checked as per the practices of NEMA/DOE.
- Availability of type test and routine test report.
- Documentation available for approval and certification.
OEM & B2B supply support
Subian Electric, as a leading manufacturer of electrical equipment, provides pole transformer support to power-producing companies, contractors and electrical equipment suppliers worldwide.
The manufacturing company can be contacted for specific requirements related to voltage levels, performance and capacity.
- Standard models of the pole transformers can be produced.
- Custom production quantities available for the manufacturing.
- OEM and ODM service for specific production needs.
- Customized packaging services.
- Certification and qualification procedures.
Frequently Asked Questions
What is a three-phase pole-type transformer?
It is a three-phase transformer for electric power that is mounted on a wooden, concrete or metal pole for power distribution purposes.
What ratings are available?
It can operate with a capacity in the range of 50 kVA to 2500 kVA with a primary voltage of 11kV to 33kV.
Is it suitable for Latin American networks?
Definitely, the device can be made in designed configurations for the usual electrical connections in Latin America.
Do you provide test reports?
Yes, we provide type test and routine test reports for the successful approval of the project and marketing the product.
