Transformers
35kV 46kV Power Transformer
Deliver optimized and reliable power transformation at medium-high voltage with our 35kV and 46kV Power Transformers. These specialized transformers are crucial for stepping up or stepping down voltage within industrial applications, sub-transmission networks, and renewable energy interconnections. Our 35kV and 46kV Power Transformers are precision-engineered with robust oil-immersed designs and efficient cooling systems, ensuring exceptional efficiency, low losses, superior dielectric strength, and high short-circuit withstand capability. Built for continuous operation in challenging environments, they guarantee stable power flow and grid integration. Trust our compliant and custom-tailored solutions for your specific medium-high voltage power transformation needs.
35kV 46kV Power Transformer
NPC ELECTRIC's 35kV and 46kV power(electrical) transformer complies with international standards such as IEC and ANSI, and features high efficiency, low loss, and strong insulation. This product is widely used in power grid main transformers, power plants, industrial and mining enterprises, and large infrastructure projects. It has a compact structure and reliable operation, and is suitable for all types of outdoor and indoor installation environments.In-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
35kV and 46kV 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 35kV and 46kV power transformers are trusted worldwide for efficiency, safety, and reliability.
Optimized for Medium-High Voltage
NPC Electric 35kV and 46kV Power Transformers are specifically optimized for medium-high voltage grids, offering precise and reliable voltage transformation critical for sub-transmission lines, large industrial loads, and renewable energy integration. Designed to handle the unique characteristics of these voltage levels, they ensure stable power flow and seamless integration within complex network architectures. This specialization guarantees peak performance and efficiency where these specific voltage classes are utilized. By choosing our medium-high voltage transformers, you ensure that your power infrastructure is equipped with tailor-made solutions for optimal operation and grid stability.
Exceptional Efficiency & Low Losses
We engineer our 35kV and 46kV Power Transformers for exceptional efficiency and ultra-low losses, contributing significantly to energy conservation and reduced operational expenditures. Utilizing premium-grade magnetic core materials and optimized winding designs, these transformers minimize no-load and load losses during voltage conversion. This translates directly into more power delivered to the load and less wasted heat. By deploying our high-efficiency power transformers, you not only enhance the overall performance and sustainability of your medium-high voltage network but also achieve substantial long-term cost savings, maximizing the return on your investment in power transformation.
Robust Reliability for Demanding Use
NPC Electric 35kV and 46kV Power Transformers are built with robust reliability in mind, designed for continuous and demanding operations in critical applications. Featuring durable oil-immersed construction with advanced cooling (ONAN/ONAF) and high-quality insulation, they ensure consistent performance even in harsh environmental conditions and under varying load profiles. Each transformer undergoes rigorous testing to guarantee superior dielectric strength and high short-circuit withstand capability. By selecting our reliable medium-high voltage transformers, you invest in long-term operational stability and uninterrupted power flow, safeguarding your industrial processes or sub-transmission infrastructure against unexpected disruptions.
Custom Solutions for Project Needs
We offer customized solutions for our 35kV and 46kV Power Transformers, tailoring each unit to your specific project requirements. Our engineering team collaborates closely to define optimal specifications for voltage ratios, impedance, tap changer configurations (OLTC/OCTC), cooling types, and specialized accessories. Whether you need a specific footprint for a restricted substation, enhanced noise reduction for urban areas, or features for smart grid integration, we deliver. By choosing our custom power transformers, you gain a precisely engineered solution that perfectly integrates with your existing electrical network, ensuring peak performance and future scalability for your unique medium-high voltage power transformation 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 are 35kV and 46kV Power Transformers primarily used for?
35kV and 46kV Power Transformers are primarily used for voltage transformation in medium-high voltage grids, including sub-transmission networks, industrial power supply, and integration of renewable energy sources. They efficiently step up or step down voltage for optimal power delivery. -
What are the key advantages of your 35kV/46kV Power Transformers?
Our 35kV/46kV Power Transformers offer exceptional efficiency, low losses, robust reliability, and superior dielectric strength. They are designed for demanding, continuous operation, ensuring stable and high-quality power transformation in critical applications. -
Are your 35kV and 46kV Power Transformers customizable for specific projects?
Yes, we provide custom-engineered solutions for our 35kV and 46kV Power Transformers. We can tailor specifications such as voltage ratios, impedance, cooling types (e.g., ONAN, ONAF), and tap changer configurations (OLTC/OCTC) to meet your unique medium-high voltage power requirements. -
What cooling methods are typically used in your 35kV/46kV Power Transformers?
Our 35kV/46kV Power Transformers commonly utilize oil-immersed designs with advanced cooling methods such as ONAN (Oil Natural Air Natural) for natural heat dissipation, and ONAF (Oil Natural Air Forced) for enhanced cooling under heavier loads. These methods ensure efficient thermal management and reliable operation. -
How do your 35kV and 46kV Power Transformers contribute to grid stability?
Our 35kV and 46kV Power Transformers enhance grid stability through excellent voltage regulation and robust short-circuit withstand capability. Equipped with precise tap changers, they maintain stable output voltage, prevent disruptions, and ensure consistent power quality within the medium-high voltage network.
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