Transformers
Transformers
Discover our comprehensive range of high-performance Transformers, engineered for reliable power distribution across diverse applications. We offer a full spectrum, including robust Pad Mounted Transformers for secure underground systems, efficient Distribution Transformers for utility grids, and space-saving Pole Mounted Transformers for overhead lines. For sensitive indoor environments, our Dry Type Transformers deliver exceptional safety without liquid coolants. Completing our lineup are powerful Power Transformers, vital for bulk energy transmission. Featuring advanced insulation (oil-filled or cast resin), optimized core designs, and adherence to international standards, our transformers ensure minimal energy loss, optimal voltage regulation, and long-term operational stability for industrial, commercial, and utility sectors.
3000kVA Dry Type Transformer
3000kVA Dry Type Transformer is a high-performance, reliable power solution designed to meet the needs of large industrial and commercial facilities. With a 3000kVA capacity, it utilizes advanced dry-type insulation, ensuring exceptional safety, minimal maintenance, and extended durability. Built for demanding environments, this transformer provides stable, efficient, and low-noise operation while minimizing environmental impact. The NPC ELECTRIC 3000kVA Dry Type Transformer is the ideal choice for ensuring reliable and efficient power distribution in large-scale applications. Core features include three-phase design, primary voltages 208V–600V (e.g., 480V Delta, 600V Delta), secondary voltages such as 208Y/120V, 480Y/277V, or custom, aluminum or copper windings, 150°C rise (standard) or 115°C/80°C with 220°C insulation class, ±2×2.5% primary taps, NEMA 1 ventilated enclosure (NEMA 3R/encapsulated options), natural convection cooling (AN), electrostatic shielding, and low sound levels per NEMA.
5000kVA Dry Type Transformer
The NPC ELECTRIC 5000kVA Dry Type Transformer is a high-capacity, reliable power solution designed for large-scale industrial and commercial operations. With a robust 5000kVA rating, it features advanced dry-type insulation technology for enhanced safety, low maintenance, and long-lasting performance. Engineered for demanding environments, this transformer ensures stable, efficient, and quiet operation while minimizing environmental impact. It achieves efficiencies around 99.48% at 35% load per DOE 2029 levels for three-phase low-voltage dry-type at 5000 kVA (aligned/interpolated from published tables showing progressive gains and 20% loss reduction from prior baselines), accommodates high harmonics, overloads, and ensures long-term reliability with reduced environmental footprint and operational expenses.
6300kVA Dry Type Transformer
The NPC ELECTRIC 6300kVA Dry Type Transformer is a high-performance, heavy-duty power solution designed for large industrial and commercial applications. With a capacity of 6300kVA, it features cutting-edge dry-type insulation technology, offering superior safety, low maintenance, and extended reliability. Built to withstand demanding operating conditions, this transformer provides stable, efficient, and noise-free performance while minimizing environmental impact. Its dry-type ventilated or encapsulated construction provides zero fluid maintenance, no spill/leak risks, and suitability for extreme high-density loads, space-limited, or environmentally restricted high-power applications.
7500kVA Dry Type Transformer
7500kVA Dry Type Transformer is a high-capacity, reliable power solution designed for large-scale industrial and commercial applications. With a robust 7500kVA rating, it incorporates advanced dry-type insulation technology, ensuring enhanced safety, minimal maintenance, and exceptional durability. Engineered for demanding environments, this transformer delivers stable, efficient, and low-noise operation while reducing environmental impact. The NPC ELECTRIC 7500kVA Dry Type Transformer is the ideal choice for high-power applications, providing secure and continuous power distribution for critical infrastructure. Typical attributes encompass three-phase construction, primary voltages 208V–600V (e.g., 480V Delta, 600V Delta), secondary voltages such as 208Y/120V, 480Y/277V, or custom, aluminum or copper windings, 150°C rise (standard) or 115°C/80°C with 220°C insulation class, ±2×2.5% primary taps, NEMA 1 ventilated enclosure (NEMA 3R/encapsulated options), natural convection cooling (AN), electrostatic shielding, and low sound levels per NEMA.
15kVA Conventional Type Single Phase Pole Mounted Transformer
NPC ELECTRIC has been focusing on the production of 15kVA Conventional Type Single Phase pole Mounted transformer for more than 20 years, which complies with IEC 60076, ANSI C57.12.20, EN 50464-1, ISO 9001 standards. NPC ELECTRIC'S transformer adopts oil-immersed self-cooling design, which can efficiently and stably convert high-voltage electricity into low-voltage electricity suitable for users. It is mainly used for power supply needs of rural areas, end of the power grid and small industrial users. Typical features include mineral oil insulation (ONAN cooling), aluminum or copper windings, primary voltages from 2.4kV to 34.5kV (e.g., 7200/12470GrdY, 7620/13200GrdY, 12470GrdY/7200, 24900GrdY/14400), secondary voltages 120/240V or 240/120V split-phase, BIL ratings 60-150kV on HV and 30kV on LV, impedance around 2-3.5%, ±2×2.5% taps, conventional or CSP (completely self-protected) configurations with internal fuses, arresters, and weak-link protection, pressure relief valve, oil sight gauge, and ANSI 70 gray tank finish.
25kVA Conventional Type Single Phase Pole Mounted Transformer
NPC ELECTRIC'S 25kVA Conventional Type Single Phase pole Mounted transformer are designed for servicing residential overhead distribution loads. They are also suitable for light commercial loads, industrial lighting and diversified power applications. These transformers are designed for the application conditions normally encountered on electric utility power distribution systems. Types CSP, CP, SP and S are all available. ISO 9001: 2008 Certified. Typical specifications include mineral oil insulation (ONAN cooling), aluminum or copper windings, primary voltages 2.4 kV–34.5 kV grounded wye or delta (most common: 7200/12470GrdY, 7620/13200GrdY, 12470GrdY/7200, 24940GrdY/14400, 34500GrdY/19920), secondary 120/240 V or 240/120 V split-phase, BIL ratings 95–150 kV HV / 30 kV LV, impedance typically 2.0–4.0%, ±2×2.5% or 5-position tap changer, conventional or completely self-protected (CSP) versions with internal primary fuses, external weak-link cutout, lightning arresters, pressure relief device, oil sight gauge, and standard ANSI 70 gray tank finish. Efficiency usually reaches 98.90%–99.10%+, with low sound level and corrosion-resistant design for long outdoor service life.
37.5kVA Conventional Type Single Phase Pole Mounted Transformer
37.5kVA Conventional Type Single Phase pole Mounted transformer has a rated capacity range from 10 kVA to 333 kVA, and complies with ANSI, IEEE, CSA, IEC60076 and other standards, ensuring safety, stability, and efficiency, allowing you to reduce operating costs. Our products have been widely exported to markets such as North America, Central and South America, and Southeast Asia. With rich experience, we provide comprehensive technical support and services. Key specifications include mineral oil insulation (ONAN cooling), aluminum or copper windings, primary voltages 2.4kV–34.5kV grounded wye or delta (common: 7200/12470GrdY, 7620/13200GrdY, 12470GrdY/7200, 24940GrdY/14400, 34500GrdY/19920), secondary 120/240V or 240/120V split-phase, BIL ratings 95–150kV HV / 30kV LV, impedance typically 2.0–4.0%, ±2×2.5% or 5-position tap changer, conventional or CSP (completely self-protected) configurations with internal fuses, lightning arresters, weak-link protection, pressure relief valve, oil sight gauge, and standard ANSI 70 gray tank finish. Efficiency typically reaches 99.01–99.05%+, with low sound levels and corrosion-resistant features for long-term outdoor durability.
50kVA Conventional Type Single Phase Pole Mounted Transformer
The 50kVA Conventional Type Single Phase pole Mounted transformer produced by NPC ELECTRIC has a rated capacity ranging from 10kVA to 333kVA, meeting the standards of ANSI/IEEE C57, IEC60076, etc. Its main function is to convert high-voltage power (such as 10kV, 11kV, etc.) into low-voltage power (such as 220V, 240V) through the transformer for use in homes, shops, industrial equipment, etc. It is suitable for residential areas, commercial areas, rural power grids, agricultural facilities and small industrial power supply. Standard features encompass mineral oil insulation (ONAN cooling), aluminum or copper windings, primary voltages 2.4kV–34.5kV grounded wye or delta (common: 7200/12470GrdY, 7620/13200GrdY, 12470GrdY/7200, 24940GrdY/14400, 34500GrdY/19920), secondary 120/240V or 240/120V split-phase, BIL ratings 95–150kV HV / 30kV LV, impedance typically 2.0–4.0%, ±2×2.5% or 5-position tap changer, conventional or CSP (completely self-protected) configurations with internal fuses, lightning arresters, weak-link protection, pressure relief valve, oil sight gauge, and ANSI 70 gray tank finish. Efficiency typically reaches 99.11%+, with low sound levels and corrosion-resistant hardware for extended outdoor service.
75kVA Conventional Type Single Phase Pole Mounted Transformer
NPC ELECTRIC has been specialized in manufacturing 75kVA Conventional Type Single Phase pole Mounted transformer for more than 20 years, which complies with international standards such as ANSI/IEEE C57, IEC60076 and other standards. Its main function is to convert high voltage electricity (such as 11kV, 13.8kV, etc.) into low voltage electricity (such as 120V/240V), providing stable and reliable power supply to end users. It is suitable for residential, commercial, agricultural and small industrial loads. Typical specifications include mineral oil insulation (ONAN cooling), aluminum or copper windings, primary voltages 2.4kV–34.5kV grounded wye or delta (common: 7200/12470GrdY, 7620/13200GrdY, 12470GrdY/7200, 24940GrdY/14400, 34500GrdY/19920), secondary 120/240V or 240/120V split-phase, BIL ratings 95–150kV HV / 30kV LV, impedance typically 2.0–4.0%, ±2×2.5% or 5-position tap changer, conventional or CSP (completely self-protected) configurations with internal fuses, lightning arresters, weak-link protection, pressure relief valve, oil sight gauge, and ANSI 70 gray tank finish. Efficiency typically reaches 99.17–99.19% at 50% load per DOE levels, with low sound levels and corrosion-resistant hardware for extended outdoor service.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
Related Articles
Understand the product's characteristics, structure, and applications.
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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