Product Overview

A professional distribution transformer manufacturer with 10 years of expertise, specializes in single-phase pole-mounted transformers for urban and rural power distribution. Designed for 11kV, 12.4kV, 13.2kV, 13.8kV, and 34.5kV input voltages, these transformers deliver outputs such as 240/480V and 120/240V, complying with IEEE C57, ANSI C57, and IEC 60076 standards.

Leading Technological Advantages

• Enhanced Lightning Resistance: Unique winding technology minimizes surge damage.

• Superior Mechanical Strength: Low magnetic leakage design with 45° full-oblique step-laminated iron core structure resists short circuits.

Shell & Construction

Precision Manufacturing:

• Mitsubishi laser cutting and CNC punching ensure mm-level accuracy.

• ABB robotic welding with laser detection achieves a 99.99998% leak-proof rate.

• Durable Coating: Electrostatic spray paint offers 50+ years of corrosion resistance (100h salt spray test, hardness ≥0.4).

• Fully Sealed Design: Cylindrical structure with self-sealing manual pressure relief valve (ANSI-compliant), NEMA-standard hanger brackets, and 30+ year maintenance-free operation.

Core Components

Iron Core

• High-quality cold-rolled grain-oriented silicon steel sheets from Baowu Steel (China), with mineral oxide insulation.

• Precision cutting and stacking reduce no-load current, losses, and noise.

Windings

• Low Voltage: High-grade cable paper-wrapped wires.

• High Voltage: Polyurethane enamelled round copper wires.

• Interlayer insulation with dot-adhesive paper ensures coil stability and insulation resistance.

Premium Materials

• Silicon steel sheets: Baowu Steel Group.

• Oxygen-free copper: Chinese high-purity grade.

• Transformer oil: CNPC Kunlun 25# premium oil.

Additional Features

• High-strength polymer or porcelain low/high-voltage bushings.

• Ring-type full-copper tinned terminals.

• Integrated current-limiting fuses and arresters for surge protection.

Product parameters:

• Capacity: 100kVA 

• Rated voltage: 13.8kV, 34.5kV

• Maximum operating voltage (kV) 38.5kV

• Conditions of use:

• The temperature:
  Maximum daily temperature (℃) : 40; Minimum daily temperature (℃) : -25; Maximum daily temperature difference (K) : 25; Average temperature of the hottest month (℃) : 30; Maximum annual average temperature (℃) : 20; Average daily relative humidity (≤%) : 95; Average monthly relative humidity (≤%) : 90 

• Altitude (≤m) : 1000

• Solar radiation intensity (W/cm2) : 0.1

• Maximum ice thickness (mm) : 10

• 10m high from the ground, maintain 10min average maximum wind speed (m/s) : 35

• Ground horizontal acceleration (M/S2) : 2

• Installation place: outdoor; 8. Pollution grade: ⅲ

Ordering instructions:

• Main parameters of transformer (voltage, capacity, loss and other main parameters) .

• Transformer use environment (altitude, temperature, humidity, place, etc) .

• Other customized requirements (tap switch, color, oil pillow, etc) .

• The minimum order quantity is 1 set, global delivery within 7 days .

•  The normal delivery period is 30 days, with fast delivery worldwide .

What are the advantages of a single-phase pole-mounted transformer?

• High Efficiency：Utilizes premium winding materials and advanced manufacturing techniques to achieve superior energy conversion efficiency, reducing operational losses.

• Low Loss Performance：Constructed with high-grade silicon steel sheets and precision processes, minimizing no-load and load losses for enhanced energy savings and environmental friendliness.

• Extended Service Life：Premium materials and rigorous manufacturing standards ensure prolonged durability, reducing replacement needs over the product lifecycle.

• Low Noise Operation：Optimized core and coil design significantly reduces operational noise, making it ideal for noise-sensitive environments like urban areas or commercial buildings.

• Reliable Performance：Oil-immersed design offers excellent cooling and insulation capabilities, ensuring stable operation in high-power, high-voltage applications.

• Enhanced Fire Safety：Despite oil-based insulation, modern designs incorporate multi-layer protective measures (e.g., pressure relief valves, fire-retardant coatings) to mitigate risks.

• Robust Environmental Adaptability：Engineered to withstand harsh conditions, including extreme temperatures, high humidity, and rugged terrain, for versatile deployment.