Single Phase Pole Mounted Transformers

Yongxing Transformer offers a comprehensive range of single-phase pole mounted transformers, commonly referred to as overhead transformers or pole-mounted distribution transformers. We specialize in designing and manufacturing both traditional and Completely Self-Protected (CSP) transformers.

Our CSP overhead transformer is a standout product that integrates essential protective features, including surge protectors on the high-voltage side, circuit breakers on the low-voltage side, and built-in fuses. This all-in-one design eliminates the need for additional protective devices, significantly reducing installation costs.

With capacities ranging from 10 kVA to 500 kVA and voltage ratings from 0.12 kV to 35 kV, our pole mounted transformers are engineered for reliability and efficiency in diverse applications. By providing CSP overhead transformers, Yongxing Transformer ensures enhanced safety and convenience for our customers. Our innovative approach streamlines the installation process while retaining necessary protection measures, delivering reliable and cost-effective solutions for overhead transformer applications. Trust Yongxing Transformer for superior quality and performance in your power distribution needs, including pad mounted transformers and pole mounted distribution solutions.

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Single Phase Pole Mounted Transformer Specifications

Power Rating	Width(mm)	Depth(mm)	High(mm)	Total Weight(kg)
10 kVA	500	526	886	151
15 kVA	521	566	906	211
25 kVA	561	591	936	259
37.5 kVA	611	626	936	341
50 kVA	636	676	1036	396
75 kVA	746	841	1036	481
100 kVA	771	966	1136	531
167 kVA	796	891	1336	681
250 kVA	1081	1031	1396	1281
333 kVA	1141	1061	1456	1551

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Rated Values of Pole Mounted Transformers

Rated values of pole mounted transformers vary based on the number of phases and the power requirements of the distribution system. Here are the optimized and unique power and voltage ratings for single-phase and three-phase pole mounted transformers:

Single Phase Pole Mounted Transformers Rated Power:

• 10 kVA, 25 kVA, 37.5 kVA, 50 kVA, 100 kVA, 167 kVA, 250 kVA, 333 kVA

Single Phase Pole Mounted Transformers Voltage Ratings:

• 2400 V, 7200 V, 12470 V, 7620 V, 13200 V, 7957 V, 13800 V, 19920 V, 34500 V, 27600 V

Three-Phase Pole Mounted Transformers Rated Power:

• 25 kVA, 45 kVA, 63 kVA, 100 kVA, 200 kVA, 315 kVA, 400 kVA, and 500 kVA

Three-Phase Pole Mounted Transformers Primary Voltage Ratings:

• Primary voltage ratings range from 11 kV to 33 kV.

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Features of Pole Mounted Transformers

Pole mounted transformers are designed for optimal performance and reliability, showcasing a range of beneficial features. They boast a cost-effective design that ensures high efficiency while maintaining low noise levels, making them ideal for various applications. These transformers come with dual voltage capability and can be customized to meet specific requirements. Their coatings meet or exceed IEEE C57 standards, while the lifting lugs comply with CSA standards for safe handling.

Excellent sealing protects against environmental factors, ensuring longevity and durability. The transformers utilize polymer-type low voltage bushings and porcelain-type high voltage bushings, offering robust insulation. Additionally, they feature convenient cover or side-mounted voltage bushings and come with spade or clamp type terminals for easy connections. Both high and low voltage terminals are included, and they are compatible with mineral oil and biodegradable vegetable oil as insulating fluids.

Structural features include tank lids with high-voltage porcelain bushings equipped with ring terminals, accommodating aluminum or copper cables. The tank cover’s circular sewing structure provides even stress distribution and reliable sealing. Ring bolts on the tank wall serve as low-voltage bushings and terminals, which are tin-plated for enhanced conductivity. A self-sealing pressure relief valve is also included, ensuring safe operation. Finally, the suspension hooks on the transformer meet ANSI standards, and the ground terminal is a ring bolt ground terminal, providing further assurance of safety and compliance.

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Single Phase Pole Mounted Transformer Testing

Before shipment, each Single Phase Pole Mounted Transformer undergoes comprehensive quality and safety testing to ensure reliable performance. Our routine tests cover key aspects such as the Ratio Test, which checks the voltage ratio accuracy, and the Winding Resistance Test to verify resistance levels across the windings. We also perform No-Load Loss and No-Load Current Tests to measure energy efficiency and current flow when the transformer is not under load, along with Applied Voltage and Induction Voltage Tests to confirm insulation strength and voltage integrity. Additionally, the Leakage Test is conducted to detect and address any potential leakage issues.

After completing these routine tests, we provide a detailed test report, signed by a professional engineer, which documents each test result, ensuring transparency and compliance with quality standards. For projects with specific requirements, we offer additional optional tests such as the Temperature Rise Test to evaluate thermal performance under load, the Sound Level Test to assess noise emissions, and extra Resistance Tests. These tests help guarantee that each transformer meets the performance and safety standards required for diverse applications and project needs.

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