150 kVA Pole Mounted Transformer
The OMEK 150 kVA Pole Mounted Transformer is the single phase pole mounted transformer with the highest capacity in its class, capable of powering 15-30 households with central AC, commercial centres and EV charging hubs.
OMEK (Jinan OMEK Electric Power Co., Ltd) is a China-based manufacturer of pole mounted transformers with over 20 years of experience, serving utilities and contractors in South America, Africa, and Southeast Asia.
150 kVA Pole Mounted Transformer General Specs
| Item | Specification |
| Capacity | 150 kVA (Customizable) |
| Phase | Single Phase, Three Phase |
| Primary Voltage | 2400 V to 34500 V (Customizable) |
| Secondary Voltage | 110 V to 690 V (Customizable) |
| Tapping Range | ±2 x 2.5% (Customizable) |
| Impedance Voltage | 1.5% – 3.0% (Customizable) |
| Rated Frequency | 50 Hz, 60 Hz (Customizable) |
| Fluid Type | Mineral Oil, Vegetable Oil (Customizable) |
| Cooling Type | ONAN / ONAF |
| Vector Group (Three-Phase Only) | Dyn11, Yyn0, Yd11 (Customizable) |
| Core Material | Silicon Steel, Amorphous Alloy (Customizable) |
| Standards Compliance | IEC, IEEE/ANSI, RETIE, INMETRO, SONCAP, KEBS, SABS, PCCC Energy-Saving |
| Certification | CE, ASTA, ISO 9001/14001/45001, CCC, CQC, ILAC-MRA Test Reports, SGS/BV Inspected |
150 kVA Pole Mounted Transformer Technical Specs
- D13-M(R)-(10-160)/10
- D11-M(R)-(10-160)/10
| D13‑M(R)‑(10‑160)/10 150 kVA Single‑phase Pole Mounted Transformer | |
|---|---|
| Parameter | Specification |
| Phase | Single phase |
| Rated Capacity (kVA) | 150 |
| High Voltage (kV) | 6 / 6.3 / 10 / 10.5 / 11 |
| Low Voltage (kV) | 2 × (0.22~0.24) or 0.22~0.24 |
| Frequency (Hz) | 50, 60 |
| Tapping Range | ±2 × 2.5% |
| Total Weight (kg) | 530‑680 |
| Connected Group Lable | li0, li6 |
| No‑Load Loss (W) | 232 |
| Load Loss (W) | 2130 |
| No‑Load Current (%) | 0.6 |
| Short Circuit Impedance (%) | 3.5 |
| Insulation Class | Class A |
| Temperature Rise | 65 ℃ |
| Enclosure Protection Rating | IP54, IP65 |
| Overall Dimension (L×W×H, inches) | 27.8 × 30.7 × 55.9 |
| Mounting Dimension (L×W, inches) | 15.8 × 19.7 |
| D13‑M(R)‑(10‑160)/10 150 kVA Single‑phase Pole Mounted Transformer | |
|---|---|
| Parameter | Specification |
| Phase | Single phase |
| Rated Capacity (kVA) | 150 |
| High Voltage (kV) | 6 / 6.3 / 10 / 10.5 / 11 |
| Low Voltage (kV) | 2 × (0.22~0.24) or 0.22~0.24 |
| Frequency (Hz) | 50, 60 |
| Tapping Range | ±2 × 2.5% |
| Total Weight (kg) | 530‑680 |
| Connected Group Lable | li0, li6 |
| No‑Load Loss (W) | 290 |
| Load Loss (W) | 2130 |
| No‑Load Current (%) | 0.6 |
| Short Circuit Impedance (%) | 3.5 |
| Insulation Class | Class A |
| Temperature Rise | 65 ℃ |
| Enclosure Protection Rating | IP54, IP65 |
| Overall Dimension (L×W×H, inches) | 27.8 × 30.7 × 55.9 |
| Mounting Dimension (L×W, inches) | 15.8 × 19.7 |
The Smart Decision: 150 kVA Pole Mounted Transformer

Maximum Single-Pole Capability
150 kVA pole mounted transformer is the most powerful single pole transformer, delivering high power directly from the pole with minimal ground space and civil costs.
Flexible Open-Delta (V-V) Banking Capability
This transformer pairs with smaller units to supply 120/240V single-phase and 3-phase commercial loads at the same time, saving equipment cost and pole space.


Superior Heat Dissipation
Its cooling tubes or corrugated tank walls feature high power-to-volume ratio design, ensuring high-efficiency heat dissipation under peak overload in high ambient temperature.
Mechanical Pressure Relief Valve
A high-flow mechanical pressure relief valve can automatically compensate internal overpressure under fault conditions, ensuring safety for 150 kVA pole mounted transformer.

150 kVA Pole Mounted Transformer Applications






Why Choose OMEK 150 kVA Pole Mounted Transformer
High-Precision Core Slitting & Stacking
- Silicon Steel Lamination: We utilize high-permeability, cold-rolled grain-oriented (CRGO) silicon steel or advanced amorphous alloy in our 150 kVA pole mounted transformer.
- Automated Laser Cutting: Precision CNC cutting minimizes burrs (<0.02 mm), reducing no-load losses (D13 series down to 232W) and lowering noise levels during operation.


Heavy-Duty LV Foil & HV Automated Winding
- Full-Width Copper/Aluminum Foil: Our 150 kVA pole mounted transformer utilizes full-width copper/aluminum foil for LV windings to resist the action of extreme short-circuit and withstand continuous low-voltage currents of over 600A.
- Dust-Free Winding Cleanroom: Coils are wound in a Class 100,000 dust-free environment to ensure that the airborne conductive particles do not affect the layer to layer insulation.
Vacuum Drying & Automated Oil Filling
- Deep Vacuum Vapor Phase Drying: Active components of the 150 kVA aerial transformer are dried under extreme vacuum (<10 Pa) to remove micro-moisture from thermal insulation paper.
- Degassed Mineral/Vegetable Oil: Under vaccum, insulating oil is degassed, filtered, and injected to ensure no air bubbles (micro-partial discharge <10 pC), significantly reducing the rate of aging of the oil.


Marine-Grade Corrosion Protection Tank Coating
- Automated Shot Blasting: Our steel tanks are shot blasted to SA 2.5 grade to remove the scale and rust in order to achieve maximum surface adhesion of 150 kVA pole mounted transformer.
- Multi-Layer Electrostatic Powder Coating: Coated with weather-resistant epoxy and polyurethane (UV-resistant), achieving IP65 ingress protection and passing 1,000-hour salt spray testing for harsh coastal or tropical environments.
100% Routine Testing
Each 150 kVA overhead transformer undergoes strict quality inspection according to IEEE C57.12.90 / IEC 60076 standards before shipping:
- Applied Voltage & Induced Overvoltage Test
- Winding Resistance & Turns Ratio Test
- No-Load & Load Loss Measurement
- Helium Mass Spectrometer Leak Detection

Why Choose OMEK

Global Certification
Based on your requirement, OMEK offers you certified service, a proof of our professionalism and authority.
- International Standards: IEC & IEEE/ANSI standards and CE Marked and ASTA Certified.Regional Regulatory Access: Fully complying with mandatory market entry requirements for South America (RETIE, INMETRO) and Africa (SONCAP, KEBS, SABS).
- Factory & Energy Qualifications: ISO 9001/14001/45001 certified, China CCC/CQC approved, and PCCC Energy-Saving Certified.
- Third-Party Verification: ILAC-MRA test reports and on-site SGS/BV inspections.
Shipping & Delivery
OMEK offers custom shipping services based on the model, quantity and destination of your transformer, which will ensure timely delivery at optimum prices.
- Sea Freight: For large capacity transformers, we use trusted international carriers to deliver transformers safely and reliably.
- Land Transport: Ideal for neighboring countries or regional trade,we use heavy-duty vehicles which are equipped with shock absorber and safe fastening.
- Air Freight: Ideal for smaller size transformers or urgent orders, significantly saving delivery time.


After-sales Service
OMEK remain committed to delivering full after-sales support for our customers around the world.
- Customized remote product training and installation instructions on videos
- Free replacement of spare parts with quality issues
- Regular overseas equipment inspection and maintenance
- On-site fault resolution within 48 hours from other countries
FAQ
Yes! Two 150 kVA single phase pole mounted transformers can be connected in an Open-Delta (V-V) configuration to power 3-phase equipment alongside 1-phase loads, significantly reducing equipment costs compared to installing a 3-phase unit.
We offer a flexible MOQ of just 1 unit, with no minimum quantity restrictions.
Our lead time is generally around 30 days.
| Parameter | D11 | D13 |
| No-load Loss | 290 W | 232 W |
| Annual No-load Energy | 2,540 kWh | 2,032 kWh |
| Annual Saving | – | 508 kWh |
| Payback Period | – | 2–4 years |
| Best For | Intermittent load, budget priority | 24/7 low-load, high electricity price |
Same rule applies from a 10 kVA unit up to 150 kVA — how often it runs decides D11 or D13.
For 24/7 low-load running transformers, such as residential, EV charging, commercial strips, the D13 will conserve about 500 kWh per year. That’s about a USD 75/year savings in areas that have above USD 0.15/kWh electricity rates — and the D13 pays for that difference in cost in about 2-4 years.
With an intermittent load or budget as your priority, the D11 provides the same reliability and capacity in a lower initial investment.
A 150 kVA pole mounted transformer generally weighs around 530‑680 kg.















