Single Phase Pad Mounted Transformer

VKE: Leading Single Phase Pad 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 Single Phase Pad Mounted Transformer

01/

Single Phase Pad Mounted Distribution Transformers: Single phase pad mounted distribution transformers are key equipment in the "last mile" of low-voltage distribution networks.

02/

Single Phase 75 Kva Pad Mount Transformer: Single phase 75 kva pad mount transformer is a fully sealed and maintenance-free outdoor power distribution equipment.

03/

167 Kva Single Phase Pad Mount Transformer: 167 Kva pad mount transformer is an efficient and maintenance-free power distribution device, suitable for small and medium-sized power distribution scenarios.

04/

Single Phase Pad Mounted Power Transformer: Single phase pad mounted power transformer is key equipment for voltage conversion in distribution networks and are widely used in outdoor low-voltage distribution scenarios.

05/

H Class Insulation Single Phase Pad Transformer: H class insulation single phase pad transformer has an insulation class of H and can adapt to most environments.

06/

Single Phase Pad Mount Transformer: Single phase pad mount transformer is a device used for power distribution, mainly in underground residential and commercial power distribution systems, and plays a role where safety, reliability and aesthetics are particularly important.

Specification

Single Phase Pad Mounted Transformer Specification
Rating (kVA)	High voltage(kV)	No Load Loss	On load Loss	Height (mm)	Depth (mm)	Width (mm)	Oil Weight(kg)	Total Weight(kg)
15 kVA	34.5/19.92 13.8/8 13.2/7.6 12.47/7.2 or others	50	195	840	740	610	45	294
25 kVA		80	290	840	740	610	68	362
37.5 kVA		106	360	840	760	610	75	476
50 kVA		135	500	840	810	610	93	553
75 kVA		190	650	840	860	610	132	672
100 kVA		280	1010	910	1200	965	230	714
167 kVA		435	1530	1000	1200	965	265	913
250 kVA		550	2230	1250	1300	1430	325	1106

Material of Single Phase Pad Mounted Transformer

Shell: The NEMA 3R type shell is adopted, made of thick steel plate and treated with powder coating. It has the ability to be tamper-proof and withstand harsh weather, and can be used in indoor or outdoor environments.

Winding Material: The winding material can be selected from aluminium or copper. Aluminum windings are lower in cost and lighter in weight, while copper windings have better electrical conductivity and heat dissipation performance.

Core Material: The core is usually made of cold-rolled silicon steel sheets, which have a high magnetic permeability and low hysteresis loss, and can improve the efficiency of the transformer.

Advantages of Single Phase Pad Mounted Transformer

Space Efficiency

Compact design allows installation in tight spaces, making them ideal for urban areas with limited real estate.

Safety

Ground-level installation eliminates the risks associated with pole-mounted units, such as falling debris or accidental contact with overhead lines. The locked casing prevents tampering and protects wildlife.

Durability

Weatherproof enclosures resist rain, snow, extreme temperatures, and corrosion, ensuring reliable operation in diverse climates.

Low Maintenance

Sealed construction reduces the need for regular inspections and oil changes compared to open-type transformers.

Cost-Effectiveness

Lower initial costs and simplified installation make them a budget-friendly choice for single phase power distribution.

Noise Reduction

Enclosed design minimizes operational noise, making them suitable for residential and noise-sensitive areas.

Application of Single Phase Pad Mounted Transformer

Residential Areas: Supplying electricity to homes, apartments, and small housing complexes where single phase power meets most electrical needs (appliances, lighting, HVAC systems).

Light Commercial Use: Single-phase pad-mounted transformers are also employed in light commercial applications, such as small businesses, strip malls, and office buildings.

Underground Power Distribution Systems: Single-phase pad-mounted transformers are essential components in underground power distribution systems.

Remote Locations: Single-phase pad-mounted transformers can be easily installed and maintained, ensuring a stable power supply to isolated areas, such as rural communities, farms, and remote industrial sites.

Backup Power Systems: Single-phase pad-mounted transformers can be used to step down the voltage from generators or other alternative power sources to supply electricity to critical loads during power outages or emergencies.

Temporary Power Supply: Single-phase pad-mounted transformers are often used to provide temporary power supply during construction projects, outdoor events, or emergency situations.

Single Phase vs. Three Phase Pad Mounted Transformers

If you're working with low to moderate load requirements, a single-phase Mounted Transformer offers a cost-effective and space-efficient solution.

Feature	Single Phase	Three Phase
Load Type	Residential / Light Commercial	Industrial / Commercial
Complexity	Simple	More complex
Installation Cost	Lower	Higher
Size	Compact	Larger footprint

Installation Considerations

Proper installation is critical to maximizing the performance and lifespan of a single phase pad mounted transformer. Key steps include:

Pad Preparation: The concrete pad must be level, structurally sound, and elevated to prevent water pooling. It should comply with local codes for size and reinforcement.

Location Planning: Select a site with adequate ventilation, away from combustible materials, and accessible for maintenance. Maintain clearances specified by the manufacturer and utility regulations.

Electrical Connections: Hire certified electricians to handle high-voltage connections, ensuring compliance with National Electrical Code (NEC) and local safety standards.

Grounding: Implement proper grounding systems to protect against electrical faults and lightning strikes.

Testing: Conduct insulation resistance tests and voltage checks before energizing the transformer to verify functionality.

Single Phase 75 Kva Pad Mount Transformer

Our Quality Control Tests

Our single phase pad mounted transformers undergo several important procedures before shipment to ensure they meet all required standards and achieve optimal performance. Key tests include:

Visual Inspection

Ensuring the transformer's physical appearance, including the enclosure, bushings, and labeling, meets design specifications.

Electrical Testing

This includes measuring winding resistance, insulation resistance, and verifying the turns ratio to confirm proper electrical functionality.

Dielectric Strength Test

Applying high voltage to the transformer to test its insulation system, ensuring it can withstand normal operating and transient voltage conditions.

Load Testing

Simulating real-world operational conditions to verify the transformer’s performance under load, checking voltage regulation and efficiency.

Protection Device Testing

Confirming that safety features such as surge arresters, tap changers, and other protective components function properly.

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	Wooden Box Packaging: Ensures safety during transportation with fumigated logs and steel corner reinforcements to prevent damage. Wooden Pallet Packaging: Provides a cost-effective solution for sea transportation, ensuring transformers are securely fastened with straps and wrapped in protective film.
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: What Is a Single Phase Pad Mounted Transformer?

A: A single phase pad mounted transformer is a hermetically sealed electrical device designed to step down high-voltage electricity (typically from utility distribution lines) to lower voltages suitable for consumer use (e.g., 120/240V in residential settings).

Q: Why is it called “pad mounted”?

A: It is called “pad mounted” because it is installed outdoors on a concrete pad at ground level, ensuring stability, safety, and easy accessibility for utility crews.

Q: How Does It Work?

A: The operation of a single phase pad mounted transformer relies on the principle of electromagnetic induction. High-voltage electricity enters the primary winding, creating a magnetic field in the iron core. This magnetic field induces a voltage in the secondary winding, which has fewer turns than the primary winding, resulting in a lower output voltage.

Q: How does the cooling mechanism work in single-phase pad-mounted transformers?

A: Oil acts as an effective cooling medium in these transformers, allowing for compact designs and high-power ratings. This eliminates the need for external cooling devices, resulting in reduced maintenance requirements and improved operational reliability.

Q: What safety features are integrated into single-phase pad-mounted transformers?

A: Safety mechanisms include water retention prevention and pressure management systems that protect against potential hazards like water ingress and internal pressure build-up, ensuring safe operation under various conditions.

Q: What voltage ratings are available for single-phase pad-mounted transformers suitable for residential use?

A: They offer a range of kVA ratings from 10 kVA to 167 kVA, catering to different load requirements. They typically support voltage ratings suitable for residential use up to 34.5 kV, with both primary and secondary voltage configurations available.

Q: How is the transformer protected from tampering?

A: The steel cabinet is lockable and tamper-resistant, with interlocked doors that prevent access to high-voltage compartments without first de-energizing the unit.

Q: What happens if the insulating oil leaks?

A: Oil leaks reduce insulation and cooling performance, posing a fire and environmental hazard. Leaks must be repaired immediately, and contaminated soil should be treated.

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

Single Phase 75 Kva Pad Mount Transformer, Single Phase Pad Mount Transformer, Single Phase Pad Mounted Power Transformer