Product Overview
Single-Phase Pole-Mounted Transformer from Subian Electric’s Xuzhou Factory
This one-phase mounted transformer makes it possible to distribute electric power efficiently as well as transforming high-voltage electricity to low voltages used in the households and small business. It complies with DOE 2016 requirements and NEMA TP1 standards in terms of its efficiency level from different perspectives associated with energy losses and its operational costs.
Applications & circuit protection
Single-phase pole transformers are used for providing electricity to rural distribution, residential and light industrial purposes.
- Rural: Village and farm supplying electricity.
- Residential: Household and community supply.
- Light industrial: Small shops and enterprises.
- Utility distribution: Single-phase delivery.
Construction & operating reliability
The slim, thick appearance is perfectly suited for outdoor environments; the effective cores and windings ensure high efficiency levels under no-load and full-load conditions.
- Slim, thick outdoor design.
- A core designed with high efficiency (USA, DOE (2016), NEMA TP1).
- Numerous combinations of primary and secondary voltage.
- Oil-immersed cooling for reliability.
- Temperature rise of 65°C/55°C according to the relevant standards.
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% |
| Type | Single-phase, oil-immersed, pole-mounted |
| Capacity | 10 – 333 kVA |
| Primary voltage | 4160 – 34600 V options |
| Secondary voltage | 120/240 / 240/480 / 277/346 V options |
| Efficiency | Up to 99.43% (DOE 2016) |
| Temperature rise | 65°C / 55°C |
| Insulation level | <150 kV BIL |
| Standard | DOE 2016 / NEMA TP1 / IEC 60076 |
Transformer Price & Factory Quotation
As a manufacturer selling directly to customers, we determine the pricing of transformers based on rated capacity, voltage configuration, core and winding material, additional equipment, and order size. Large orders and distributor programs get a price reduction. Since the prices of materials fluctuate on the market, we issue formal quotes based upon the market price at the time of quote issuance, so feel free to request the pricing on the Pole-Mounted Transformer indicating required capacity and number of transformers needed.
- OEM/ODM branding does not affect the pricing of the standard series transformers.
- Prices of additional cores, units, and special packages are separate from the pricing of standard transformers.
- Terms of EXW/FCA/FAS would apply for the export contracts.
How to Connect This Transformer
Prior to activating the Pole-Mounted Transformer, ensure that the tap position is appropriate for the voltage supply and that the connection type is appropriate for your system. The high voltage bushings are connected from the supply side, whereas the low voltage terminals connect to the load side. The earthing terminal should also be connected to the station earth as per local regulations.
- Verify tap position against actual supply voltage.
- Connect high voltage to supply, low voltage to load
- Connect the earthing terminals as per local regulations.
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
We deliver Pole-Mounted transformers to distributors and project customers in Asia, Africa, the Middle East, Latin America, and Europe. Before production begins for each consignment, we check the specific voltage, frequency, connection group, and certification requirements for each destination.
Transformer Dimensions, Weight & Packing
The size and weight can vary based on the rating, the voltage and the type. For example, a standard oil immersed transformer of 100 KVA has a length of about 1000-1200mm, a width of 500-700mm and a height of 1100-1400mm while shipping weight can vary between 600-900kg. Full dimension drawings and weights are provided with order confirmation and the transformers are packed to suit land or sea transportation requirements.
- Keep in mind that dimension drawings are approved before manufacturing.
- Transporting of goods will follow standards with specific lifting points indicated.
- Make sure to confirm your port and transport method so you could plan for delivery.
Standards & certifications
Constructed following DOE 2016 and NEMA TP1 standards, this transformer is available with the necessary acceptance test reports for utility and project acceptance.
- Efficiency ratings comply with DOE 2016 / NEMA TP1.
- Standards followed: IEC 60076.
- Type-test and routine reports can be supplied.
- Documentation for certification purposes available.
OEM & B2B supply support
Subian Electric is a leading manufacturer and supplier of electric power equipment. It provides support to utility companies and distributors in the areas of single-phase transformer supply for both domestic and overseas markets.
We can supply transformers tailor-made according to your needs. Please contact us with your specifications so that we can provide you with a precise quotation.
- We can provide you with samples or technical drawings.
- Purchase quantities can be adapted to project needs.
- We fully support OEM and ODM operations.
- We offer custom labeling and packing.
- We provide all necessary technical documentation and certifications.
Frequently Asked Questions
What is a single-phase pole transformer?
It is a single-phase transformer that has been installed on utility poles in order to reduce MV voltage for the supply of residential and light commercial applications.
What capacities are available?
Different sizes of single-phase pole transformers are available ranging from 10kVA-333kVA, having a number of variations in primary and secondary voltages combinations.
What efficiency standards does it meet?
The equipment would comply with NEMA TP1 standards and DOE 2016 efficiency standards ultimately decreasing operational and overhead costs.
Do you supply to export markets?
Yes, all types of configurations can be made available specifically for North American markets, and other export markets with test reports.
