Transformers
220kV 230kV Power Transformer
Master the backbone of ultra-high voltage transmission with our advanced 220kV and 230kV Power Transformers. These critical components are engineered for unparalleled performance, delivering ultra-efficient and ultra-reliable voltage transformation at the nexus of national and international grids. Our 220kV and 230kV Power Transformers feature state-of-the-art oil-immersed designs with highly optimized cooling systems (ONAF, OFAF, OFWF), guaranteeing industry-leading efficiency, absolute minimal losses, superior dielectric strength, and exceptional short-circuit withstand capability. Built for continuous, heavy-duty operation in the most demanding environments, they ensure stable and uninterrupted massive power flow. Trust our compliant and custom-tailored solutions for your vital UHV/EHV transmission power transformation needs.
220kV 230kV Power Transformer
NPC ELECTRIC's 220kV and 230kV power transformer complies with the International Electrotechnical Commission (IEC) standards as below: 1. IEC 60076 Power Transformers; 2. AS NZS 60076 Power Transformers CSAC88-16 Power Transformers; 3. ANSI/IEEE C57.12.00 IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers; 4. GOST R 52719 Power Transformers - General Specifications; 5. EN60076 Poer Transformer; 6. Local After-Sales Services In North America SouthIn-Depth Analysis
Power 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.
Comparative Analysis of Efficiency and Loss
Compared to the industry average, 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
+30%
Reduced Iron Loss
-35%
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
96%
Environmental Adaptability Analysis
Power 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
Discover why our power transformers are trusted worldwide for efficiency, safety, and reliability.
Essential for UHV Transmission
Our 220kV and 230kV Power Transformers are essential for the Ultra-High Voltage (UHV) transmission backbone, forming the critical nexus of national and international power grids. These extremely high-MVA capacity transformers are engineered to flawlessly manage massive power flows and extreme voltage demands at critical interconnections and large generation plants. Their precise and stable voltage transformation ensures efficient bulk power transfer across vast distances. By choosing our UHV transmission transformers, you invest in vital equipment that guarantees the stability, capacity, and resilience of your most crucial electrical infrastructure, facilitating reliable power delivery on an unprecedented scale.
Minimal Losses & Superior Efficiency
We engineer our 220kV and 230kV Power Transformers for absolute minimal losses and superior efficiency, delivering significant long-term economic and environmental advantages. Leveraging state-of-the-art magnetic core materials, optimized winding geometries, and advanced cooling systems (OFAF, OFWF), these transformers achieve the lowest possible no-load and load losses in their class. This translates directly into substantial energy conservation, reduced operational expenses, and a significantly smaller carbon footprint over their extended service life. By deploying our ultra-efficient UHV transformers, you maximize return on investment and bolster the sustainability of your UHV transmission network.
Unparalleled Reliability for Grid Stability
Our 220kV and 230kV Power Transformers offer unparalleled reliability for critical grid stability, built to operate continuously and flawlessly under the most extreme conditions. These oil-immersed units feature premium insulation, advanced surge protection, and a highly robust mechanical design, ensuring exceptional dielectric strength and industry-leading short-circuit withstand capability. Each transformer undergoes the most stringent testing to guarantee long-term operational stability and resilience against severe electrical and environmental stresses. By selecting our ultra-reliable UHV transformers, you fortify your transmission substations and vital power infrastructure with equipment proven to deliver unwavering power flow for decades, minimizing downtime.
Precision-Engineered for Complex Interconnections
We provide precision-engineered solutions for our 220kV and 230kV Power Transformers, precisely meeting the intricate demands of complex UHV grid interconnections and colossal infrastructure projects. Our expert engineering team collaborates closely with clients to define optimal MVA ratings, precise impedance values, advanced On-Load Tap Changer (OLTC) configurations, and specialized cooling arrangements. Whether for new inter-regional power superhighways, massive power plant connections, or smart grid integration, we deliver bespoke designs that maximize performance and site compatibility. By choosing our custom UHV transformers, you acquire a perfectly tailored solution that seamlessly integrates into your electrical infrastructure, ensuring peak performance and future-proofing for the most advanced grid challenges.
Product Show
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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
Power transformers have been successfully applied in many projects and have been highly praised by customers.
Venezuela Residential Area
CompletedProvide stable and reliable power conversion solutions for the residential area to meet diverse production needs.
Country：Venezuela
Model：220kV Power Transformer x 5
Uruguay Data Center
CompletedEnsure the power safety of surrounding residents and meet daily work needs
Country：Uruguay
Model：350kV Power Transformer x 10
Dominican Factory
CompletedNPC transformers provide safe, efficient, and reliable power distribution in the Dominican.
Country：Dominican
Model：450kVA Power Transformer x 4
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 the critical role of 220kV and 230kV Power Transformers in the grid?
220kV and 230kV Power Transformers are the UHV grid core, serving as essential components for ultra-high voltage transmission networks. They facilitate the efficient and reliable bulk transfer of power over long distances from generation hubs to major load centers, crucial for national and international power grids. -
How do your 220kV/230kV Power Transformers achieve ultra-high efficiency and minimal losses?
Our 220kV/230kV Power Transformers achieve ultra-high efficiency and minimal losses through advanced core materials, optimized winding designs, and sophisticated cooling (OFAF, OFWF). This design drastically reduces energy waste, resulting in significant operational savings and a reduced environmental footprint in UHV transmission. -
Are your 220kV/230kV Power Transformers suitable for complex grid interconnections?
Absolutely. Our 220kV/230kV Power Transformers are precision-engineered for complex grid interconnections. We offer custom-tailored solutions for specific MVA ratings, impedance, and advanced On-Load Tap Changer (OLTC) configurations, ensuring seamless integration and optimal performance within intricate UHV networks. -
What robust features ensure the reliability of your 220kV/230kV Power Transformers?
Our 220kV/230kV Power Transformers boast unparalleled reliability due to robust oil-immersed construction, superior dielectric strength, and exceptional short-circuit withstand capability. Rigorous testing and high-quality components ensure continuous, stable operation, safeguarding critical grid infrastructure against faults and disruptions. -
What cooling systems are specifically used for these high-capacity 220kV/230kV Power Transformers?
For these high-capacity 220kV/230kV Power Transformers, we employ highly efficient forced cooling systems. This primarily includes OFAF (Oil Forced Air Forced) and, for extremely large units, OFWF (Oil Forced Water Forced). These advanced methods ensure optimal thermal management, crucial for sustained performance in UHV transmission applications.
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