Pole Mounted Transformer

VKE: Leading Pole Mounted Transformer Manufacturer

Founded in 2003, Jiangsu VKE Transformer Co., Ltd. is a professional manufacturer of high-quality compact substation. Our facility adopts a full-process layout that seamlessly connects each step - from raw materials to finished products - to achieve a smooth workflow. We are committed to becoming your trusted partner.

Why Choose Us

Quality Assurance

VKE employs industry-leading automated testing systems to conduct full life-cycle monitoring for every transformer. The combination of precision instruments and digital platforms ensures that our products meet strict quality standards and custom requirements.

One-Stop Service

VKE ensures that every transformer we deliver undergoes rigorous quality checks. We offer a one-stop service, including quotation, manufacturing, installation, commissioning, and training.

Production Capacity

With two production bases covering 33,660 m² and a dedicated team of 110+ employees, we achieve an annual production capacity of 6,000 MVA.

Global Certification

We are IEC, CE, UL and regional safety certified. With high-performance products and top-quality service, our products are sold in many countries and regions worldwide.

Types of Pole Mounted Transformer

01/

Overhead Pole-mounted Single-phase Transformer
Overhead pole-mounted single-phase transformer is a cylindrical design with small size and low manufacturing cost, and is widely used in European and American countries.

02/

12470y 7200 120 240v Pole Mounted Transformer
12470Y/7200 120/240V pole mounted transformer needs to be equipped with a pressure relief valve. The purpose is to control the pressure stability inside the transformer.

03/

100 Kva Single Phase Pole Mounted Transformer
100 kva single phase pole mounted transformer is an ideal choice for rural areas and single-phase high-power power consumption scenarios.

04/

75 Kva Pole Mounted Transformer
75 kva pole-mounted transformer, with its economy and practicality, is widely used in urban and rural distribution networks and is an important device for ensuring reliable power supply to low-voltage users.

05/

Oil-immersed Pole Transformer
Oil-immersed pole transformers are outdoor power distribution equipment installed on utility poles or cement poles. In order to achieve insulation, heat dissipation and moisture resistance, the transformer winding is directly immersed in mineral oil.

06/

Single Phase Pole Mounted Transformer
Single phase pole mounted transformers are the core equipment of single-phase distribution networks. They achieve the conversion from medium voltage to low voltage through a simple structure, providing stable power for small users

Technical Specifications

Frequency	60Hz / 50Hz
Temperature Rise	Generally 55°C / 65°C
Core	C.R.G.O (Cold Rolled Grain Oriented) / Core & Amorphous Core
Winding Material	Cu-Cu / Cu-Al / Al-Al
Tap Range	±5% In 2.5% increments (4 tap positions: +2, +1, 0, -1, -2)
Product Scope	5 kVA – 167 kVA
Primary Voltage	2400V to 19920V
Secondary Voltage	120V to 600V
Insulation Class	Typically Class A or B (consult spec sheet for precise class)
Impedance Range	Usually 2% to 6% depending on size
BIL (Basic Impulse Level)	95kV (typical for 15kV class), varies with voltage rating

Overhead Pole-mounted Single-phase Transformer

Advantages of Pole Mounted Transformer

Enhanced Protection

The elevated positioning of pole-mounted transformers on utility poles provides enhanced protection against flooding and vandalism, and reduces the risk of accidents involving pedestrians or vehicles.

Space-Saving Design

By utilizing existing utility poles, there is no need for additional ground space for transformer installations. This is particularly advantageous in urban areas where land availability is limited.

Cost-Effectiveness

They are generally less expensive to install and maintain compared to pad-mounted or underground alternatives. Their elevated position facilitates easier access for utility workers during maintenance and repair activities.

Improved Cooling Capabilities

The exposed position allows for natural air circulation, which aids in dissipating heat more efficiently. This can enhance the performance and extend the lifespan of the transformer.

Versatility

Pole-mounted transformers can be easily relocated or replaced if necessary, providing flexibility in the design and maintenance of electrical distribution systems.

Application of Pole Mounted Transformer

Urban/Suburban Neighborhoods: In cities and suburbs, pole mounted transformers are installed on utility poles to step down medium-voltage electricity (e.g., 11 kV or 33 kV) to the low-voltage levels (240V/120V) required for homes and small businesses.

Rural Areas: Pole mounted transformers are frequently used in rural or less densely populated areas where underground cables are not practical due to cost. Long stretches of utility poles deliver power over large distances.

Commercial Buildings: Small commercial establishments like shops, offices, and restaurants may rely on pole mounted transformers for their electricity supply if located in areas where overhead distribution is standard.

Farms and Agricultural Facilities: In agricultural areas, farms often use pole-mounted transformers to supply power to equipment, irrigation systems, and other farm-related facilities.

Construction Sites: Pole mounted transformers can provide temporary power at construction sites or temporary facilities where overhead power lines exist or can be installed quickly.

Street Lighting and Public Infrastructure: Pole mounted transformers often supply power to street lights and public lighting systems along roads, highways, and other public infrastructure.

Understanding the Distinctions Between Pole-Mounted and Pad-Mounted Transformers

Here’s a side-by-side comparison of the key differences between pole-mounted and pad-mounted transformers:

Aspect	Pole-Mounted Transformers	Pad-Mounted Transformers
Installation Location	Utility Poles	Concrete Pads or Enclosures
Accessibility	Easier to access for maintenance	Ground-level installation, may require less maintenance effort
Cost	Generally, more cost-effective	Slightly higher installation and unit cost
Space Efficiency	Require more space	Compact and space-efficient
Visual Impact	Because of the utility poles required, they are more of an eye sore if the other utilities are buried	May blend better in certain areas

Pole-Mounted Transformer Installation Requirements

The pole-mounted transformer should be installed as close to the load center as possible to reduce the line power loss and line voltage drop of the low-voltage power supply line. Installing in complex poles such as corner poles and branch poles should be avoided.

It is recommended to keep the transformer profile at least 5m away from combustible buildings and to keep it at least 3m away from fire-resistant buildings. There should be a minimum distance of 5m between the substation and the ground and a minimum distance of 1m between the low-voltage distribution box and the ground.

All exposed live parts on the transformer platform should be at least 5m above the ground, and warning signs should be set up in obvious locations 2.5 to 3.0m above the ground.

When high and low voltage lines are installed on the same pole, the low voltage line should be located below the high voltage line, and the distance between the high and low voltage cross arms should not be less than 20m.

In areas where the air contains flammable or explosive gases or dust that can destroy insulation, it is not advisable to install pole-mounted substations and indoor substations should be used instead.

12470Y 7200 120 240V Pole Mounted Transformer

Our Quality Control Process

Raw Material Test

At VKE, we place great emphasis on the quality of raw materials, as they are the foundation of reliable and high-performance products. We have strict requirements for all incoming materials, including aluminum, copper, insulation materials, and outer sheath compounds. Before any material enters the production line, it must pass a full range of quality tests conducted by our in-house technical team.

Progress Test

VKE has a dedicated team to follow up on in-process testing during manufacturing. All tests will be conducted as follows:
1. Coil winding process inspection
2. Coil insulation inspection
3. Core assembly inspection
4. Coil and core set inspection
5. Drying process detection (vacuum drying or hot air drying)
6. Oil filling process inspection (applicable to oil-immersed transformers)
7. Intermediate electrical performance test (as needed)
8. Assembly process inspection

Routine Test Before Shippment

Ensure that the transformer has no physical defects, such as damage, scratches, or leaks. Nameplate data, external parts, and physical condition of the transformer. Verify that the voltage ratio between the primary and secondary windings is correct, ensuring the transformer’s voltage conversion is accurate.

Customization Process

Consultation and Contact

Reach out to us via email, phone, or our website to discuss your specific requirements and project goals.

Design Confirmation

We will create a basic design plan based on your requirements and confirm the specific design details with you.

Quotation and Agreement

Provide a detailed quotation, discuss, and sign the mutual agreement to finalize the project details.

Payment Confirmation

Make the payment to confirm the development project. 30% deposit in advance, 70% balance against the copy of B/L..

Manufacturing

We start the manufacturing process and oversee progress to ensure timely production. This helps us maintain efficiency and meet deadlines.

Logistics and Delivery

Together, we conduct the final acceptance to verify that the transformer meet your quality standards and requirements. By doing so, we ensure everything aligns with your expectations.

Shipping and Delivery

Payment Terms	We accept LC, T/T,Western Union, PayPal and so on. If others, we can discuss.
Delivery Time	Usually it will take about 30 days after order confirmed.
Package	For the small capacity, we will use carton, but for big capacity, we should use strong wooden case for protection.
Transportation	For small package, we will send it by Express, such as DHL,FedEx,,UPS,TNT,EMS. For big package, we will sent you by sea , air or train.

Our Certificates

productcate-1-1

FAQ

Q: How often do pole-mounted transformers need maintenance?

A: Pole-mounted transformers usually need maintenance every 3-5 years. They are designed to last 20-30 years with proper care.

Q: Are pole-mounted transformers affected by extreme weather conditions?

A: Pole-mounted transformers are affected by extreme weather like high winds, lightning, ice storms, and flooding. These conditions can damage components, disrupt power supply, and shorten the transformer’s lifespan.

Q: Are pole mounted transformers safe?

A: Yes, pole mounted transformers are generally safe when properly installed and maintained.

Q: Why are pole-mounted transformers grounded?

A: To ensure that electrical current has a safe path in the event of a breakdown or ground fault, a pole mounted transformer must be always grounded. As you can see, to guard against electrical shock, lessen electrical noise, and shield electronics from harm, grounding is essential.

Q: How does a pole mounted transformer operate?

A: When a transformer is functioning correctly, current flows into the inductor coil, which is often linked to a metal. This coil can successfully focus the electrical current from the other coil. Because of this, it flows in its own direction and produces a fluctuating electric current. Pole mounted transformer insulators are generally hardwired into the power grid at the station. To connect the devices, the go switch must be mainly switched on. Because of potential sparking problems, certain pole mounted transformers do not have an ON button.

Q: Do pole mounted transformers step down voltage?

A: The primary function of a power pole transformer is to step down the voltage from distribution levels to consumption levels. This process ensures that electricity supplied to nearby residential or commercial areas is at a safe and usable voltage.

Q: How many amps can a pole mounted transformer handle?

A: Thus, a typical residential pole transformer might handle currents in the range of 50 to 150 amps, depending on its power rating and voltage.

Q: Do pole mounted transformers have oil?

A: It is engineered specifically for electrical insulation and cooling within a transformer utility pole unit or pad mount transformer. This oil keeps high-voltage components from overheating, reduces the risk of electrical discharges, and extends the lifespan of the equipment.

We're professional pole mounted transformer manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to buy pole mounted transformer for sale here from our factory. For price consultation, contact us.

Overhead Pole mounted Single phase Transformer, Oil immersed Pole Transformer, Single Phase Pole Mounted Distribution Transformer