power pole transformer | Single Phase High-Efficiency Pole Mounted Transformer – QIANLAI ELECTRIC
As a leading manufacturer of power distribution equipment, QIANLAI ELECTRICAL specializes in high-quality power pole transformer solutions, focusing on single-phase pole mounted transformers for global outdoor power distribution needs. Our products comply with IEEE C57.12.00, IEC, UL, and ANSI standards, delivering reliable, weather-resistant, and energy-efficient performance for residential, commercial, and industrial applications. Whether for rural electrification, urban street power supply, or remote area distribution, our single phase power pole transformer is engineered to meet the harshest outdoor conditions and strictest industry requirements.

Why Choose QIANLAI Power Pole Transformer?
Our single-phase pole mounted transformers stand out with core advantages tailored for outdoor reliability and long-term operation, addressing the key pain points of power distribution projects worldwide.
- Superior Weather Resistance & Durability
Designed for outdoor installation, our power pole transformer features a fully sealed tank made of 2-3mm cold-rolled steel with double anti-corrosion treatment (electrostatic spraying + hot-dip galvanizing) <superscript:1]. The tank is tested via kerosene leakage test to ensure zero oil leakage, while the insulation system uses moisture-resistant and high-temperature materials to resist rain, snow, salt spray, and extreme temperatures (-40℃ to 60℃). The epoxy resin-sealed core and windings enhance vibration resistance, ensuring stable operation even in strong winds and earthquakes.
- High Energy Efficiency & Low Loss
QIANLAI single phase power pole transformer adopts oriented silicon steel sheets or amorphous alloy cores, combined with precision winding technology, to achieve ultra-low no-load and load losses. Complying with DOE 2016 and IEEE efficiency standards <superscript:2], our transformers reduce energy consumption and operational costs for customers. The copper windings (or optional high-purity aluminum windings) are wrapped with high-grade insulation paper, ensuring excellent dielectric strength (minimum 30kV at 60Hz) <superscript:1] and long service life.
- Built-In Protection System (CSP Optional)
For enhanced safety, our power pole transformer can be configured as a Completely Self-Protected (CSP) type, integrating surge arresters, high-voltage drop-out fuses, and low-voltage circuit breakers. These components automatically disconnect power during overload, short-circuit, or over-voltage conditions, protecting both the transformer and the electrical system. A pressure relief valve and temperature sensor are also available to prevent overheating and oil expansion damage.
- Easy Installation & Maintenance-Free Design
The pole-mounted structure is lightweight and compact, with dedicated lifting lugs and support lugs complying with IEEE standards for safe and quick installation <superscript:1]. The fully sealed tank design eliminates the need for regular oil replacement or internal inspection, achieving maintenance-free operation under normal conditions. All bushings are outdoor-type with high creepage distance (≥20mm/kV), preventing pollution flashover in humid or dusty environments.
Technical Specifications of Power Pole Transformer
| Capacity(KVA) | Primary Voltage (KV) | Amorphous core | CRGO core | ||
| No load loss(W) | load loss(W) | No load loss(W) | load loss(W) | ||
| 3 | 13.8-7.967KV 13.2-7.62KV 11-6.35KV customizable
| 8 | 45 | 9 | 45 |
| 5 | 8 | 75 | 19 | 75 | |
| 10 | 12 | 120 | 36 | 120 | |
| 15 | 15 | 195 | 50 | 195 | |
| 25 | 18 | 290 | 80 | 290 | |
| 37.5 | 30 | 360 | 105 | 360 | |
| 50 | 13.8-7.967KV 13.2-7.62KV 11-6.35KV customizable
| 32 | 500 | 135 | 500 |
| 75 | 45 | 650 | 190 | 650 | |
| 100 | 50 | 850 | 210 | 850 | |
| 167 | 65 | 1410 | 35 | 1410 | |
Manufacturing Excellence & Quality Control
QIANLAI ELECTRICAL adheres to strict manufacturing processes to ensure every power pole transformer meets global standards. The production process includes:
- Core Processing: CNC precision cutting of silicon steel sheets, low-temperature annealing to restore magnetic properties, and single-point grounding to avoid eddy current loss.
- Winding Production: CNC winding machine with uniform tension, vacuum drying (≤50Pa) to remove moisture, and epoxy resin curing for integral insulation.
- Tank Assembly: Seamless welding, double anti-corrosion treatment, and vacuum oil filling to prevent air bubbles in the oil.
- Comprehensive Testing: Routine tests include no-load test, load test, withstand voltage test, and sealing test; sampling tests cover salt spray corrosion and vibration noise (≤55dB) <superscript:1].
Customization Services for Power Pole Transformer
We understand that every project has unique requirements. QIANLAI offers customized solutions for power pole transformers, including:
- Custom voltage ratio, tap range (±2×2.5% or others), and frequency (50Hz/60Hz).
- Special materials: 304 stainless steel tank, fire-resistant oil, and anti-theft components.
- Export-oriented design: Foreign language nameplates, UL/IEC certification adaptation, and anti-salt spray coating for coastal areas.
- Additional accessories: Oil level gauges, temperature controllers, and CSP protection systems.

Contact QIANLAI for Your Power Pole Transformer Needs
QIANLAI ELECTRICAL is your trusted partner for high-quality power pole transformer solutions. With years of experience in exporting to Europe, North America, and Southeast Asia, we provide one-stop services from design, production to logistics. Contact us today for a free quote and customized solution!







