Transformers
Single Phase Pad Mounted Transformer

5kVA Single Phase Pad Mounted Transformer
The 5kVA Single Phase Pad Mounted Transformer is designed for reliable and efficient power distribution in residential, commercial, and light industrial applications. Ideal for medium-density areas, this transformer steps down high-voltage electricity to a usable lower voltage for safe distribution to homes and businesses.
10kVA Single Phase Pad Mounted Transformer
The 10 kVA pad-mounted transformer meets ANSI, CSA, NEMA, IEEE, and DOE standards. NPC Electric's 10 kVA pad-mounted transformers comply with DOE efficiency values and are UL listed. Based on specific technical requirements, the incoming line can be designed as either a loop feed or radial feed, and it also supports customized dual voltage.
15kVA Single Phase Pad Mounted transformer
The 15 kVA single phase pad mounted transformer operates safely, reliably, and efficiently and can be installed indoors and outdoors. This type of transformer has a low operating cost, is environmentally friendly, easy to install, and has a low purchase cost, so it is widely used in residential, commercial, and other public.
25kVA Single Phase Pad Mounted transformer
The 25kVA Single Phase Pad Mounted transformer with a power rating of 25 kVA, the high voltage of the transformer is 24940GRDY/14400×12470GRDY/7200V, which is a dual high voltage design. Customers can switch between 14.4kV and 7.2kV through a dual voltage switch according to the distribution line. There is a five-position voltage regulating switch on the high-voltage side, which can allow small changes in voltage within ±2 * 2 ½%. The 25 kVA transformer has bay o net fuse and ELSP fuse to form a double fuse system to protect the transformer from damage in circuit faults. The transformer comes complete with an oil level indicator and a 4-position load break switch, adding to its versatility and ease of maintenance.
37.5kVA Single Phase Pad Mounted transformer
The 37.5kVA Single Phase Pad Mounted transformer with high voltage (HV) specifications of 24.94GRDY/14.4 kV and low voltage (LV) of 240/120V. At its core lies a robust tank, constructed from resilient alloy 304 stainless steel, guaranteeing longevity even in the harshest conditions. The HV and LV windings, equally critical components, are meticulously crafted from high-quality aluminum to ensure unwavering performance.
50kVA Single Phase Pad Mounted transformer
NPC ELECTRIC 50 kVA pad mounted transformer meets/exceeds DOE 2016 efficiency ratings with UL/cUL listed. Design and production with ANSI/IEEE, CSA standards.NPC ELECTRIC Transformer's 50 kVA single-phase pad-mounted transformer is extensively employed in the North American market. With their wealth of project experience,NPC ELECTRIC Transformer caters to a diverse clientele, including builders, public utility departments, and transformer distributors and retailers.
75kVA Single Phase Pad Mounted transformer
NPC ELECTRIC 75 kVA pad mounted transformer meets/exceeds DOE 2016 efficiency ratings with UL/cUL listed. NPC ELECTRIC Transformer offers tailored services for your 75 kVA Transformer project. NPC ELECTRIC Transformer is the transformer manufacturer that gets the most UL&CUL certifications. Yearly, they supply over thousands of transformers to the North American market, catering to diverse industries like Renewables, Utilities, Oil and Gas, Data Centers, Crypto, Building, and many more.
100kVA Single Phase Pad Mounted transformer
The 100 kVA Single Phase Pad Mounted transformer adheres to a compartmental-type structure in line with IEEE Std C57.12.28 or IEEE Std C57.12.29 standards. It consists of a tank housing high-voltage and low-voltage cable terminating compartments, thoughtfully positioned side by side along one face of the transformer tank. In this configuration, the high-voltage compartment, fitted with two internally connected high-voltage bushing wells and inserts, a 4-position loadbreak switch, a 5-position tap changer switch, and a bayonet fuse, is situated alongside the low-voltage compartment featuring three stud L.V bushings and an oil level gauge.
167kVA Single Phase Pad Mounted Transformer
NPC ELECTRIC 167 kVA pad mounted transformer meets/exceeds DOE 2016 efficiency ratings with UL/cUL listed. NPC ELECTRIC Transformer, a distinguished transformer supplier and manufacturer with a UL listing, offers tailored solutions for 167 kVA transformers to align with distinct standards, technical specifications, and application settings.In-Depth Analysis
Comparative Analysis of Efficiency and Loss
Compared to the industry average, transformers exhibit lower losses and higher efficiency across the entire load range.
Load Efficiency Comparison(%)
No-load Loss Comparison(W)
High-efficiency Core Design
High magnetic permeability and low loss silicon steel sheets are used and processed by special process to reduce hysteresis loss and eddy current loss and improve conversion efficiency.
Multiple Protection Systems
IP65 protection grade design combines multiple protection measures such as anti-corrosion, anti-UV, anti-condensation and anti-small animal intrusion.
Ultra-low Noise Technology
A special shock-absorbing structure, low-noise fans, and optimized heat dissipation design ensure operating noise is far below industry standards.
Intelligent Cooling System
The heat dissipation system with adaptive temperature control automatically adjusts the heat dissipation efficiency according to the load and ambient temperature to reduce energy consumption.
Safety Wiring System
Insulated protective cover and anti-misoperation design ensure personnel safety during installation and maintenance and reduce accident risks
Intelligent Monitoring
An optional remote monitoring system is available to monitor operating status, temperature, load and other parameters in real time, and supports fault warning and remote diagnosis.
Environmental Adaptability Analysis
Pad Mounted Transformers have been rigorously tested and can operate stably under various harsh environmental conditions.
Temperature Range
-40℃ ~ +55℃
Can work normally in extreme high and low temperature environments
Humidity Adaptation
0 ~ 100% RH
Including condensation environment, no frost requirement
Seismic Resistance Level
IEC 60068-2-57
Suitable for earthquake-prone areas
Altitude
≤3000m
More than special design
Why Choose Us

Single Phase Transformers Manufacturer
Compared to larger three-phase pad-mounted transformers, single-phase units are more cost-effective and space-saving, making them ideal for neighborhoods, small businesses, and rural power systems.

Pad Mounted Transformer Size Options
Choosing the right size of a 3 phase transformer helps balance efficiency, cost, and space utilization. With standard and customizable options, our transformers deliver reliable power while fitting seamlessly into any installation environment.

Safe, Durable & Low Maintenance
With built-in protection mechanisms, every 3 phase transformer minimizes risks while extending service life. Thanks to their robust design, our transformers require minimal maintenance, helping customers save on costs and downtime. Invest in a solution that prioritizes safety, resilience, and long-term value.

Custom Solutions and Compatibility
For larger projects, we also supply three-phase pad-mounted transformers and 3-phase transformers, ensuring complete coverage across residential, commercial, and industrial applications. All products comply with global standards such as IEC, IEEE, and ANSI, ensuring compatibility and reliable integration worldwide.
Product Show
Testing and Certification

Bare Cable Test Report

SGS Inspection Report

Certificate of Acceptance

ISO Quality Certificate

ISO Environmental Certificate

ISO Occupational Certificate

UL Laboratory Certificate

UL Product Certificate
Project Cases

Spain Industrial Park
CompletedProvide stable and reliable power conversion solutions for industrial parks to meet diverse production needs.
Country:Spain
Model:45kVA Single Phase Pad Mounted Transformer x 6

Mongolia Residential Area
CompletedEnsure the power safety of surrounding residents and meet daily work needs
Country:Mongolia
Model:75KV Single Phase Pad Mounted Transformer x 10

Venezuela Factory
CompletedSingle-phase pad-mounted transformers provide safe, efficient, and reliable power distribution in Venezuela.
Country:Venezuela
Model:75kVA Single Phase Pad Mounted Transformer x 12
Technical Advantages
FAQ From Customers
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What is a single phase pad mounted transformer and how does it work?
A single phase pad mounted transformer is a distribution transformer installed at ground level in a secure enclosure. It converts higher utility voltage into lower usable voltage for homes, small businesses, and rural areas. Compact and safe, this single phase transformer provides efficient power delivery with minimal maintenance needs. -
When should I choose a single phase transformer instead of a three phase unit?
A single phase transformer is ideal for residential neighborhoods, small commercial buildings, and light-load applications where demand is lower. Compared to a three phase transformer, it is more affordable, compact, and easy to install. For large industrial facilities, however, a three phase system usually provides better efficiency and higher capacity. -
Can a single phase to three phase transformer convert power for industrial use?
Yes, a single phase to three phase transformer is designed to convert single phase power into three phase power. It is often used in areas where only single phase supply is available, but machinery requires three phase. By installing a single to three phase transformer, businesses can run industrial equipment without rebuilding the entire power network. -
How does a 3 phase from single phase transformer help in upgrading power supply?
A 3 phase from single phase transformer provides a practical solution for upgrading existing power infrastructure. It enables facilities with only single phase input to generate three phase output, supporting motors, pumps, and heavy equipment. This makes it an efficient choice for workshops, farms, and small factories expanding their energy requirements. -
What are the benefits of using a single to three phase transformer for businesses?
Using a single to three phase transformer allows businesses to operate three phase equipment even when only single phase power is available. It reduces the cost of upgrading the utility connection and ensures machines run smoothly. This solution improves energy efficiency, boosts productivity, and extends equipment life for commercial and industrial users.