Transformers
Transformers
30kVA Dry Type Transformer
The 30kVA Dry type transformer complies with ANSI, CSA, NEMA, IEEE, IEC, GB, and DOE standards. NPC ELECTRIC manufactures Dry type transformer in strict accordance with the highest industry and international standards. Our team of highly skilled professionals ensures these rigorous standards are meticulously upheld in daily operations.
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.
250kVA Single Phase Pad Mounted Transformer
NPC ELECTRIC 250 kVA single phase pad mounted transformer operates safely, reliably, and efficiently and can be installed indoors and outdoors. The industrial transformer has a rated power of 250 kVA, a primary voltage of 27600/16000V single-phase and a secondary voltage of 120/240V single-phase.The transformer has a primary loop feed and dead front primary connections.In-Depth Analysis
NPC Electric transformers are built to deliver high efficiency, reliable performance, and advanced safety, helping businesses reduce energy costs while ensuring stable power supply. With future-ready adaptability for renewable energy and smart grid applications, they provide a sustainable and innovative solution for today’s and tomorrow’s power needs.
Comparative Analysis of Efficiency and Loss
Compared to the industry average, NPC 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.
Improved Magnetic Permeability
+25%
Reduced Iron Loss
-30%
Multiple Protection Systems
IP65 protection grade design combines multiple protection measures such as anti-corrosion, anti-UV, anti-condensation and anti-small animal intrusion.
Waterproof Performance
IP65
Anti-Corrosion Ability
15 years+
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.
Noise Reduction
-15dB
Suitability for Residential Areas
Excellent
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.
Heat Dissipation Efficiency
+40%
Temperature Stability
±2℃
Safety Wiring System
Insulated protective cover and anti-misoperation design ensure personnel safety during installation and maintenance and reduce accident risks
Insulation Grade
Class H
Safety Protection
IP2X
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.
Data Collection Frequency
one times a minute
Fault Warning Accuracy
98%
Environmental Adaptability Analysis
NPC 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
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.
Transformer Manufacturer
With over 30 years of manufacturing experience, we specialize in delivering reliable and efficient transformer solutions.
Our product portfolio includes Pad Mounted Transformers, Power Transformers, Dry Type Transformers, Pole Mounted Transformers, Oil-immersed Transformer, Substation Transformer and Distribution Transformers, serving diverse applications with proven quality and innovation.
NPC ELECTRIC is committed to providing partners with high-quality, high-performance, and high-reliability transformers.
Our product portfolio includes Pad Mounted Transformers, Power Transformers, Dry Type Transformers, Pole Mounted Transformers, Oil-immersed Transformer, Substation Transformer and Distribution Transformers, serving diverse applications with proven quality and innovation.
NPC ELECTRIC is committed to providing partners with high-quality, high-performance, and high-reliability transformers.
Transformer Installation
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.
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.
Transformer Testing
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 square meters of strategically located warehouse space across China, we guarantee timely delivery and flexible logistics to meet tight global project schedules. We utilize specialized transportation teams across land, sea, and air to assist with shipping your products. We can arrange shipping on EXW, CIF, FOB, FCA, CIP, or any other terms requested by the client.
Product Show
Explore the detailed design and practical application scenarios of NPC transformers
Pad Mounted Transformer
Pad Mounted Transformer Design
3 Phase Transformer
Transformer Internal Structure
NPC Earth Transformer
Safe and reliable
Oil Immersed Transformer
Lightweight and compact with superior performance
Testing and Certification
Tested with precision and certified to meet international standards as
well as strict industry requirements.
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
NPC transformers have been successfully applied in many projects and have been highly praised by customers.
Mongolia Industrial Park
CompletedProvide stable and reliable power conversion solutions for industrial parks to meet diverse production needs.
Country：Mongolia
Model：Three Phase Pad Mounted Transformer x 8
Dominican Factory
CompletedEnsure power security in nearby industrial parks and meet diverse needs
Country：Dominican
Model：NPC 450KV Power Transformer x 4
Dominican Electricity
CompletedDry-type transformers provide safe, efficient, and reliable power distribution in Dominican .
Country：Dominican
Model：NPC Dry Type Transformer x 6
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 types of transformers do you manufacture?
We provide a full range of transformers including pad mounted transformers, power transformers, dry type transformers, pole mounted transformers, and distribution transformers, etc. -
How do your transformers ensure safety and reliability?
NPC transformers are built with advanced insulation systems, strict quality control, and international standard certifications, ensuring long-term safe and stable performance. -
Can transformers be customized for specific applications?
Yes. We offer customized designs to meet unique requirements in renewable energy, industrial, utility, and commercial applications. -
What is the typical service life of your transformers?
With proper maintenance, our transformers are designed for a service life of 25–30 years or more, ensuring reliable operation with minimal downtime. -
Do you provide after-sales service and technical support?
Absolutely. We offer comprehensive after-sales service, including installation guidance, maintenance support, and technical consultation.
Welcome your inquiry
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