Transformers
Transformer Equipments
Our comprehensive range includes transformer bushings, Buchholz relays, dehydrating breathers, pressure relief valves, oil level gauges, temperature indicators, and other essential transformer components.
Whether you need solutions for oil-immersed transformers or dry-type transformers, we provide durable, standards-compliant equipments that ensure safety, efficiency, and long service life. All products are manufactured to international quality standards and widely used in power plants, renewable energy projects, industrial facilities, and electrical networks.
Explore our full collection of transformer spare parts and maintenance accessories to optimize performance and minimize downtime. Trusted by engineers and procurement professionals worldwide for superior quality and competitive pricing.
In-Depth Analysis
NPC Electric transformers equipments 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
+15%
Reduced Iron Loss
-28%
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 equipments have been rigorously tested and can operate stably under various harsh environmental conditions.
Temperature Range
-40℃ ~ +75℃
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.
Superior Quality & International Standards
We are committed to delivering only the highest quality Transformer Equipments. All our products, including HV bushings, prefabricated transformers, HV switchgear, and voltage regulators, are manufactured under strict ISO 9001 quality management systems and fully comply with IEC, ANSI, and GB international standards. Each component undergoes rigorous testing such as power frequency withstand, partial discharge, and thermal stability tests before leaving the factory. With over 15 years of industry experience, we use premium materials like high-grade porcelain, epoxy resin, and corrosion-resistant alloys to ensure long service life and exceptional performance even in harsh environments. Choosing us means choosing safety, reliability, and peace of mind for your power projects.
One-Stop Comprehensive Solutions
We offer a complete range of Transformer Equipments and accessories under one roof. From HV bushings, Buchholz relays, and dehydrating breathers to full prefabricated transformers, HV switchgear, and voltage regulators, we provide integrated solutions for both new installations and maintenance projects. This one-stop service saves you time and cost while ensuring perfect compatibility between all components. Whether you need equipment for substations, renewable energy plants, industrial facilities, or urban power distribution, our professional team can deliver tailored packages that meet your exact technical specifications and project requirements.
Professional Technical Support & Customization
Our experienced engineering team provides full technical support throughout your project lifecycle. We offer product selection guidance, technical drawings, on-site installation support, and customized solutions according to your specific voltage, capacity, and environmental requirements. With advanced design software and a strong R&D capability, we can quickly develop special specifications for HV bushings, prefabricated transformers, and HV switchgear to meet unique project demands. Our experts are always ready to help you solve complex technical challenges in power transmission and distribution systems.
Reliable After-Sales Service
We stand behind every product we supply. Our professional after-sales team offers comprehensive warranty, rapid spare parts delivery, remote technical diagnosis, and on-site maintenance support. With a global service network and sufficient stock of common Transformer Equipments such as HV bushings and voltage regulators, we ensure minimal downtime for your operations. Many customers choose us repeatedly because of our responsive service, competitive pricing, and long-term partnership approach. We are not just a supplier — we are your trusted partner in power equipment.
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 are Transformer Equipments?
Transformer Equipments refer to a wide range of accessories and components used for power transformers, including HV bushings, Buchholz relays, dehydrating breathers, temperature indicators, and oil level gauges. These essential parts ensure safe, efficient, and reliable operation of oil-immersed and dry-type transformers. -
What is an HV Bushing and why is it important?
HV Bushing (High Voltage Bushing) is a critical insulator that allows high-voltage conductors to pass through the transformer tank while maintaining electrical insulation. It prevents flashover and ensures safe power transmission. We offer premium porcelain and composite HV bushings up to 110kV. -
What is a Prefabricated Transformer?
A Prefabricated Transformer (also known as package substation or compact substation) is a factory-assembled unit that integrates transformer, HV switchgear, LV switchgear, and protection devices into one enclosure. It is widely used in urban power distribution, industrial parks, and renewable energy projects due to its compact size and fast installation. -
Do you supply HV Switchgear for transformers?
Yes. We provide HV Switchgear including SF6 gas insulated switchgear, vacuum circuit breakers, disconnectors, and load break switches. These are fully compatible with our transformers and prefabricated substations, meeting IEC standards for reliable power control and protection. -
What does a Voltage Regulator do in a transformer system?
A Voltage Regulator automatically maintains stable output voltage despite fluctuations in input voltage or load. It is commonly used with power transformers in areas with unstable grids, ensuring consistent voltage for sensitive equipment and improving overall system efficiency. -
What other Transformer Equipments do you offer?
In addition to HV bushings, HV switchgear, prefabricated transformers and voltage regulators, we also supply Buchholz relays, pressure relief valves, dehydrating breathers, magnetic oil level gauges, winding temperature indicators, and complete sets of transformer spare parts.
Welcome your inquiry
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