Transformers
Three Phase Pad Mounted Transformer
NPC Three-phase pad-mounted transformers, for use on underground power distribution systems, are best suited for commercial applications in public access areas and where underground service is required. These transformers meet modern design requirements for flexibility and provide a visually pleasing installation. Construction allows installation in locations accessible to the general public without the need for protective fencing or vaults. These units are ideally suited for apartment buildings, schools, hospitals, shopping centers, commercial buildings, or industrial sites. Standard, liquid-filled sizes range from 45–7500 kVA, with primary ratings from 2.4–34.5 kV.
45kVA Three Phase Pad Mounted Transformer
The 45 kVA pad-mounted transformer meets ANSI, CSA, NEMA, IEEE, and DOE standards. NPC Electric's 45 kVA pad-mounted transformers comply with DOE efficiency values and are UL listed. Based on specific technical requirements, the iron core can be designed as either a three-legged or five-legged assembly structure.
75kVA Three Phase Pad Mounted Transformer
The 75kVA pad-mounted transformer is tailored for utility customers in Canada, featuring a primary voltage of 25kV and a secondary voltage of 480/277V. It strictly adheres to local standards, including CSA C227.4 and CSA C802.1, ensuring optimal efficiency values. Notably, both the high and low-voltage windings are crafted from aluminum or copper.
150kVA Three Phase Pad Mounted Transformer
150kVA Three-Phase Pad Mounted Transformer is an efficient and reliable power transformer designed for applications in commercial, industrial, and residential areas. This transformer features a robust enclosure and protective design, enabling stable operation in outdoor environments and making it suitable for power systems with high load demands. With a high power capacity of 150kVA and three-phase power output, it ensures a stable voltage and smooth power supply for the equipment.
225kVA Three Phase Pad Mounted Transformer
The 225kVA three-phase pad transformer is an efficient and reliable power conversion device designed for commercial, industrial and distribution systems. With a high power capacity of 225kVA, the transformer is able to provide a stable three-phase power supply for large-scale equipment to meet high load requirements. Its rugged housing is made of weather-resistant materials and meets NEMA 3R standards, ensuring long-term stable operation in outdoor environments and preventing the influence of external factors such as water, dust and corrosion.
300kVA Three Phase Pad Mounted Transformer
The 300kVA three-phase pad transformer is an efficient and reliable power device designed for commercial, industrial and distribution systems. The transformer provides a high power capacity of 300kVA, which can provide a stable three-phase power supply for high-load equipment, ensuring efficient and smooth operation of the power system. Its sturdy housing adopts a protective design that meets the NEMA 3R standard, which can effectively resist the invasion of the external environment and is suitable for outdoor installation.
500kVA Three Phase Pad Mounted Transformer
The 500kVA three-phase pad transformer is an efficient and sturdy power equipment designed for commercial, industrial and distribution systems. It has a compact design and a protective casing that meets NEMA 3R or higher standards. It is suitable for various outdoor environments and can effectively resist external factors such as weather, dust and moisture. It can meet the power needs of different regions and has a variety of optional functions, such as load regulation and temperature control systems, to further improve its operating efficiency and safety. The built-in protection device can effectively prevent overload, short circuit and other faults to ensure the safe and reliable operation of the power system.
750kVA Three Phase Pad Mounted Transformer
The 750kVA three-phase pad transformer is an efficient and durable power equipment designed for commercial, industrial and distribution system applications. The transformer supports a variety of voltage configurations to meet the power needs of different regions, and is equipped with advanced protection systems such as overload protection, short-circuit protection and temperature control devices to ensure the safe operation of the equipment under high load and extreme environments.
1000kVA Three Phase Pad Mounted Transformer
The 1000kVA three-phase pad transformer is an efficient and reliable power transformer designed for high-load applications such as large commercial, industrial and distribution systems. The transformer has a high power capacity of 1000kVA and can stably provide continuous power supply for three-phase power systems to meet large-scale power needs. With a rugged and durable casing and protective design, it is suitable for operation in various outdoor environments and can effectively resist adverse weather conditions.
1500kVA Three Phase Pad Mounted Transformer
NPC ELECTRIC's 1500kVA Three Phase Pad Mounted transformer is designed with high-quality silicon steel sheets and insulating oil, in compliance with international standards such as IEC and ANSI, ensuring efficient and stable operation. It is suitable for a variety of scenarios such as urban power distribution, residential areas, commercial parks and industrial facilities. Whether it is ring network power supply or radial power supply, it can be flexibly applied to help achieve efficient and intelligent power transmission and distribution solutions.Why Choose Us
As a trusted partner in energy savings and the development of green energy solutions, NPC
Electric has played a pioneering role in the development of national smart grids across
multiple regions.
Project Experience
With years of experience in power transmission and distribution, NPC Electric has become
a trusted name in the manufacturing of cables and transformers. We’ve successfully
served international EPC companies such as Elecnor, Cobra, and Equans in Latin America,
Africa, and Southeast Asia.We have provided the 132kV Power Transformer,Pad Mounted
Transformer and Earth Transformer.
Technical Support
NPC Electric’s skilled engineers offer full-cycle support—from design consultation and
technical drawings to on-site guidance and after-sales service—ensuring peace of mind at
every stage of the project.
We have a technical team of over 60 members and more than 100 after-sales engineers,
ready to assist customers with installation and on-site support.
Till now, we have provided professional engineering services in countries such as
Mongolia, Honduras, Peru, and Rwanda. Our services include winding resistance testing,
oil testing, and installation support.
Quality Control
NPC Electric uses high-quality raw materials and advanced production processes,
supported by strict quality control systems. Our products meet or exceed international
standards such as IEC, UL, and ISO, ensuring safety, reliability, and long service life.
All our cables are subject to third-party laboratory testing—such as by SGS, DNV, or
witnessed directly by customers—to ensure compliance and performance.
Efficient Logistics & Timely Delivery
With over 4,200 sqm of warehouse space and a strategic in China, we guarantee timely
delivery and flexible logistics to meet tight project schedules globally.We have the
professional team to assitance the customer to ship the production, we can do
EXW,CIF,FOB,FCA,CIP or any customer request terms.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
FAQ From Customers
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What is a Transformer?A transformer is an electrical device used to change the voltage of alternating current (AC). It works on the principle of electromagnetic induction, converting high-voltage current into low-voltage current or low-voltage current into high-voltage current. Transformers are widely used in power transmission, distribution systems, and various electronic devices.
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What are the main uses of a transformer?The main use of a transformer is voltage conversion. Transformers are used in power transmission systems to help transfer electricity from power plants to consumers. In addition, transformers are also used in electronic devices such as chargers, televisions, power adapters, etc., to adjust the voltage to meet the requirements of different devices.
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Do you have UL listed?Yes, our transformer has UL listed. We have exported to America many pad mounted transformer,substation transformer and HV.
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