Distribution transformers are important equipment in power distribution systems, mainly used to convert high-voltage electrical energy into low-voltage electrical energy. They are widely used in power grids, industry, construction, mining, and new energy fields.
Urban rail transit transformers mainly include traction transformers, rectifier transformers, distribution transformers, isolation transformers, dry-type transformers, and specialized transformers for box type substations.
Energy storage transformers adopt advanced design and manufacturing processes, with characteristics such as low loss, low temperature rise, strong overload capacity, and excellent insulation performance, which can meet the charging and discharging and grid connected operation needs of energy storage systems
New energy transformers mainly include photovoltaic step-up transformers, wind power step-up transformers, energy storage transformers, box type substation transformers, and charging pile specific transformers.
Marine transformers mainly include dry-type marine transformers, oil immersed marine transformers, isolation transformers, autotransformers, and lighting transformers.
Excitation transformers mainly include oil immersed excitation transformers, dry-type excitation transformers, rectifier excitation transformers, and motor excitation dedicated transformers.
Distribution Transformer Products
Urban rail transit transformer products
energy storage products
New energy box type transformer
Marine Transformer Products
Excitation transformer
Full scenario power solution
A systematic power supply equipment system covering three major fields: rail transit, new energy, and special industries
The product has been certified by authoritative global classification societies such as LR, DNV, ABS, CCS, and strictly adheres to the C2+E2+F1 environmental standards. It has triple protection capabilities against salt spray, mold, and moisture. Adopting a core coil tensioning structure and a patented design for nail locking, it can withstand 22.5 ° sway and 15 ° tilt, and its anti vibration performance meets military grade standards. The water cooling solution achieves a 50% increase in overload capacity and a 20% reduction in weight, perfectly adapting to the demanding space and lifting requirements of ships.
Build an electromagnetic structural thermal multi physics coupling simulation platform from the design source, accurately predict short-circuit electrodynamics, resonance frequency, and structural component pressure limit. Before leaving the factory, additional eight types of tests such as external withstand voltage, lightning impulse, harmonic voltage, and hot spot temperature rise are added. Fiber optic temperature measurement technology is used to measure winding hot spots, ensuring accurate prediction of insulation life. Through the joint debugging of "motor inverter transformer", the risk of grid connected harmonics is completely eliminated, achieving zero defect delivery throughout the product lifecycle.
The transformer loss is generally 3% -5% better than the industry standard, and the noise is generally below the national standard by more than 10 decibels. The local emission control is at the leading level in the industry. The integrated design of wind, water and cooling improves the heat dissipation efficiency by 30%, enhances the ability to resist excitation surge, and ensures seamless switching between diesel generator sets and electric propulsion systems. From 1250kVA main power transformer to customized 24 pulse rectification solution, with compact structure and modular design, we provide efficient, quiet, and reliable power guarantee for every route.
Full coverage of international certification, creating a secure fortress for maritime mobility
Full stack simulation testing system, defining new heights of reliability
Ultimate energy efficiency and quietness empower green and intelligent shipping
Marine power system expert
International classification certification x high-speed rail quality control standards, customized reliable electrical energy for Deep Blue Navigation
Design transformers with low noise and reduced vibration levels for ship applications, and meet strict size installation and lifting maintenance requirements for ship environments, fully identifying and meeting the certification requirements for ship transformers.
To provide the world with the best quality, most cost-effective, and first-class service products and system solutions.
Accept non-standard customization
Ensure that each customer has appropriate equipment to use
Own production factory
Easily solve equipment supply issues, advantages
Company R&D team
We have years of industry experience and high-quality service
One stop comprehensive service platform for transformer products
Provide high-quality products for the market - grow together with customers
Through continuous innovation and development, we strive to provide customers with diversified one-stop service solutions
PRODUCT SHOW
Having been deeply involved in the field of power equipment for more than 20 years, Junfa Electrical Equipment Co., Ltd. has always been committed to becoming the most trusted guardian of electrical energy for customers.
durable
high reliability
Quality and efficiency
Advantages of Machinery
Product and service advantages
When excellent energy-saving performance meets strict high-speed rail level control, and when full lifecycle reliability meets lightning responsive after-sales service, Junfa redefines the value standard of power equipment with four core innovations.
Ultimate energy efficiency and dual environmental protection
We are not followers of standards, only transcendents of standards. The no-load and load losses of the entire series of distribution transformers are 3% -5% higher than the national standard, and the loss value of urban rail energy feedback transformers has reached the industry-leading level. In terms of noise control, the entire product line is 8-13dB lower than the national standard, making quietness the beauty of industry. We have passed the certification of three tests for internationally advanced dry-type transformers: C2 (-25 ℃ extreme cold start), E2 (condensation polluted environment), and F1 (flame retardant and low toxicity), ensuring environmental protection and safety in one go.
High speed rail quality, full chain control
Full scenario energy efficiency optimization and green design
18 hour lightning service, no overnight issues
Relying on the bloodline of CRRC, we will implant the high-speed rail quality management system into every aspect. A comprehensive mechanism for on-site supplier supervision, strict warehouse inspection, and quality ranking ensures that non-conforming products are not removed from the vehicle; Process visualization and standardized operation manual, making every process traceable; The factory test not only provides fully automatic and accurate measurement, but also adds limit verification such as external withstand voltage, lightning impulse, overload temperature rise, etc., in order to deliver products that can withstand the test
The new energy transformer products cover all scenarios of wind power generation, photovoltaic power generation, offshore wind power, intelligent microgrids, and rooftop photovoltaics. The system energy efficiency comprehensively leads the industry standard - the no-load loss of wind power combined transformers is reduced by 5% compared to NB/T31061-2014, and the no-load loss of photovoltaic combined transformers is reduced by 5% compared to T/CEE IA-2016, with a 3% reduction in load loss, improving the efficiency of clean energy conversion from the source. The intelligent microgrid solution integrates distributed power sources, energy storage devices, and energy conversion systems to build a miniaturized and highly reliable power generation and distribution system, maximizing the promotion of clean energy consumption and technological innovation.
Adhering to the high-speed rail service philosophy of "after-sales speed determines long-term development", we promise to respond within 1 hour, arrive at the scene within 7 hours, and solve problems within 10 hours. 24-hour customer service management ensures that every unexpected situation becomes an opportunity to verify our commitment.
For the overseas business sector, we have opened a dedicated one-on-one remote video technology guidance channel, supporting real-time online teaching through communication software from multiple countries; At the same time, cooperation docking points can be established in some key overseas areas to provide localized after-sales support, making cross-border cooperation communication more efficient and after-sales more guaranteed.
Marine Transformer: The Guardian of Electric Energy in Deep Blue Navigation
Junfa Electric's marine transformers are tailor-made for the Deep Blue voyage, with certification from mainstream global classification societies such as LR, DNV, CCS as the cornerstone, extending the high-speed rail grade quality control system to the marine environment. We not only provide a full range of customized solutions from 1250kVA main power transformers to 24 pulse rectifier transformers, but also use electromagnetic structure thermal field multi physics coupling simulation as the design origin to accurately predict short-circuit electrodynamic and resonance risks. Combined with the patented structure of iron core coil support and nail anti loosening technology, we ensure that the product will never loosen under harsh working conditions of 22.5 ° swing and 15 ° tilt.
water-cooled transformer
• Composed of dry-type transformer and IP44 protective casing, water-cooled heat exchanger and water pump
• Compact structure, suitable for places such as ships where transformer size and weight are limited
• Overload capacity reaches 50%, weight can be reduced by 20%
• Vibration reduction design is specifically designed for situations with frequent vibrations
Self cooling transformer
• The primary and secondary sides of the transformer are both low voltage, used on offshore drilling platforms or ships
• Used as a propulsion transformer or lighting power transformer
• For occasions with high requirements for electrical safety
• Can be used as an isolation transformer.
Customized dry-type transformer solution specially designed for ship power propulsion and ocean engineering
Rail transit power supply
Transplanting the traction transformer technology of CRRC High Speed Railway in China, providing high reliability, low noise, and high weather resistance transformer and system integration solutions for power, traction, maglev, and energy storage charging.
new energy power generation
Covering the entire scene of sea land wind, electric and photovoltaic power, providing integrated intelligent box transformers and offshore wind power dedicated transformers, leading green energy efficiency with C2+E2+F1 environmental level and ultra-low loss.
Specialized industrial customization
Deeply involved in the fields of petroleum and petrochemicals, shipbuilding, mining, nuclear power and military industry, with CNAS certified testing stations and 20 years of industry experience, we provide non-standard customization and full lifecycle services.
ABOUT US
Green Energy Conversion Expert
Covering the entire wind, solar, and photovoltaic scene, empowering the clean energy revolution with high-speed rail level energy efficiency and reliability
Junfa Electric focuses deeply on the fields of wind power, photovoltaics, and intelligent microgrids, building a full chain product matrix covering onshore wind power box transformers, offshore wind power special transformers, photovoltaic inverter and boost integrated devices, and distributed microgrid systems. We have fully transferred the structural strength of locomotive level equipment, anti loosening and anti detachment technology of rail transit, and lightweight finite element design experience to new energy scenarios, enabling offshore wind power transformers to meet military standards in terms of salt spray resistance, vibration resistance, and impact resistance. We use MIDEL insulation fluid to achieve higher fire safety and meet the needs of miniaturization and lightweight installation in tower and cabin to the extreme. By combining intelligent sensing and measurement systems, centralized monitoring can be achieved, significantly reducing operation and maintenance costs. With rail transit level reliability and environmental adaptability, it provides a solid power conversion guarantee for clean energy generation from grid connection to microgrid in all operating conditions and throughout the entire life cycle.
Junfa Electric deeply integrates the quality control system of CRRC High Speed Rail in China, providing an integrated power conversion solution that is energy-efficient, silent, environmentally friendly, and adaptable to all working conditions for sea and land new energy scenarios.
Introduction to Data Centers
Combining the expertise and innovation of enterprises, as well as the accumulation of special transformer technology for rail transit, customized solutions are provided for IDC, AI intelligent computing centers, and financial A-level data centers. These solutions are divided into eight core advantages: safety and fire prevention, anti harmonic adaptation, ultra-low energy efficiency and PUE reduction, high reliability redundancy, intelligent operation and maintenance, environmental adaptation, customized delivery, and full cycle service 1、 Ultimate fire safety, compatible with indoor hard regulations in computer rooms 2、 High K coefficient anti harmonic winding, solving the pain points of IDC nonlinear loads 3、 First level ultra-low energy efficiency, reducing PUE in the computer room, suitable for uninterrupted operation throughout the year 4、 High overload, shock resistant, compatible with 2N/N+1 redundant power supply architecture 5、 Low noise compact structure, suitable for small distribution spaces in computer rooms 6、 Global intelligent monitoring, seamless integration with the DCIM dynamic environment system in the computer room 7、 Full scenario product matrix, covering all levels of power supply in data centers 8、 Customized R&D and full cycle supporting services
CNAS certified laboratory with full cycle process closed-loop and zero defect forging delivery capability
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In Zhuzhou, we have built an industry-leading intelligent manufacturing core and verification highland. Every inch of space here is permeated with the ingenious logic of "process first" - starting the full cycle process management from the beginning of development, through clear division of labor, benchmarking mature plans, developing verification routes, and controlling key points, the process analysis, plan planning, and verification implementation are engraved in the genes of each product in a closed loop of summary and solidification.
Entering the production site, the specialized winding workshop and assembly workshop are well-organized, and the first piece of each process must undergo rigorous review to ensure that the process requirements are accurately implemented from the drawings to the production line.
Before leaving the factory, every transformer must undergo type tests that exceed national standards, such as external withstand voltage, lightning impulse, overload temperature rise, etc. With a data-driven continuous improvement mechanism, we ensure that the delivered product is not only a product, but also a reliable commitment to zero defects. From process planning to test bench, Zhuzhou Branch provides rigorous and strong support for every kilowatt hour of electric energy output of Junfa Electric with high-speed rail level expertise.
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Guangzhou Junfa Electrical Equipment Co., Ltd
Email：intl@crrcjf.com
Address: No. 15 Huashan Road, Shilou Town, Panyu District, Guangzhou City
Sustainable development
International:+86-15973219221 Domestic:+86-18518168980