Transformers
Power Transformer
NPC ELECTRIC power transformers are high-voltage oil-immersed transformers designed with a core-type structure. According to phase number, they are classified into single-phase and three-phase transformers. Based on voltage regulation mode, they can be categorized as on-load tap changers and off-circuit tap changers. According to winding coupling methods, they include power transformers and autotransformers. By the number of windings, they are available in two-winding, three-winding, and three-winding plus balancing winding configurations.
Additionally, special types such as split transformers and combined transformers for 220kV applications are also covered in our product range. All products are designed in accordance with IEC, IEEE, and current national standards.
Additionally, special types such as split transformers and combined transformers for 220kV applications are also covered in our product range. All products are designed in accordance with IEC, IEEE, and current national standards.
Key Features
Low noise, minimizing environmental noise pollution
Low partial discharge, ensuring stable and reliable transformer operation
Low temperature rise, providing strong overload capacity
Low losses, contributing to optimized energy efficiency
No leakage, offering excellent sealing performance
Maintenance-free, reducing customer maintenance costs
High impedance, enhancing short-circuit resistance and transformer safety
Intelligent components, supporting smart substation designs
Standard,power transformers models range from 5000 to 250000 kVA with primary voltage ratings between 35 and 230 kV.
Low partial discharge, ensuring stable and reliable transformer operation
Low temperature rise, providing strong overload capacity
Low losses, contributing to optimized energy efficiency
No leakage, offering excellent sealing performance
Maintenance-free, reducing customer maintenance costs
High impedance, enhancing short-circuit resistance and transformer safety
Intelligent components, supporting smart substation designs
Standard,power transformers models range from 5000 to 250000 kVA with primary voltage ratings between 35 and 230 kV.
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
Conductor Stranded Work Shop
CCV Production Line
CCV production 01
Partical Voltage Test Labtoary
Auto-Winding Machine
Oil Chromatography Test Machine
Auto-core cutting machine
Basic Insulation Level Test Labtoary
Auto Laser Cutting Machine
Automatic Desanding Machine
Automatic Dryer Machine
FAQ From Customers
-
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.
-
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.
-
Do you have UL listed?Yes, our transformer has UL listed. We have exported to America many pad mounted transformer,substation transformer and HV.
Welcome your inquiry
Honesty, Integrity, Frugality, Activeness and Passion