-
PRODUCTS
Products
In 1988, SUNTEN introduced German dry-type transformer technology and successfully developed China’s first epoxy resin cast dry-type transformer.
Products
In 1988, SUNTEN introduced German dry-type transformer technology and successfully developed China’s first epoxy resin cast dry-type transformer.
Dry-type transformer
After over 30 years of innovation, we have formed a full series of dry-type transformer product lines, including SC to SCBH19 iterative models, as well as new energy equipment such as 1,500V energy storage systems. Prefabricated substation
Prefabricated substations are fully functional, reliable, with low investment, small footprint, and easy installation; they have good safety and a wide range of enclosure types. Pad-mounted transformers
In 1999, the company was the first in China to introduce the complete set of the most advanced design, process and manufacturing technology from GE in the United States, and successfully developed pad-mounted transformers with a compact structure and small size. Liquid-immersed transformers
Liquid-immersed transformers utilize a highly stable insulating liquid medium, and achieve efficient power transmission through electromagnetic induction between the iron core and windings. Reactors
Since the early 1990s, relying on the “Guangdong Provincial Urban Network Electrical Equipment Engineering Technology Development Center”, SUNTEN has developed and researched resin-insulated dry-type air-core reactors and dry-type iron core reactors. Grounding systems
In the late 1990s, SUNTEN developed an automatic tuning arc suppression coil grounding complete set that integrates primary high-voltage equipment and secondary control equipment. Switchgears
Since 2002, SUNTEN has been producing complete switchgear sets, with products covering the full range of 400V-40.5kV/400A-6300A, and having authorized cabinet models of Schneider MVnex+BlokSeT and ABB MDmax. Energy storage
SUNTEN (founded in 1988) is a leading enterprise in the field of power transmission and distribution, as well as new energy equipment, with core technologies in areas such as thermal power frequency regulation energy storage, wind-solar-storage integration, and industrial and commercial energy storage. -
SOLUTION
Solution
Avoiding data loss and business interruption through stable power supply. improving equipment fire prevention performance to ensure data security.
Solution
Avoiding data loss and business interruption through stable power supply. improving equipment fire prevention performance to ensure data security.
Rail transit
Rail transit requires efficient, energy-saving, safe and reliable power solutions to ensure the safe and punctual operation of trains, while adopting energy-saving designs to reduce energy consumption and support the construction of green and intelligent transportation.
Nuclear power
Nuclear power plants have extremely high safety requirements for electrical equipment, which must be certified to 1E level to ensure stable operation under extreme conditions, and employ efficient and energy-saving designs to guarantee the safe and efficient operation of nuclear power plants.
Data center
Data centers provide secure and reliable data storage and efficient computing to support the application of technologies such as cloud computing and artificial intelligence.
Photovoltaic
The renewable energy sector such as photovoltaics requires stable power solutions to improve generation efficiency, enhance equipment environmental adaptability, and adopt energy-saving designs to reduce energy consumption, driving the green energy transition.
Wind power
SUNTEN delivers wind power-optimized transformers and substations, backed by 35 years of R&D expertise, ensuring all-weather reliability and full lifecycle support for stable renewable energy operations.
Industrial and commercial power distribution
Industrial and commercial power distribution requires efficient, energy-saving, highly reliable and stable power solutions to meet the requirements of continuous operation and various special industrial and commercial environments.
Power generation excitation
Power plant generators require low-harmonic distortion excitation transformers that can adapt to frequent load changes and handle short-term overloads, ensuring the reliable and stable operation of the excitation system.
Energy storage
In the context of the accelerating energy structure transformation, electrochemical energy storage technology, with its high energy density, fast response, and multi-scenario adaptability, has become a core engine for building a new power system.
FPSO
As an “offshore oil and gas factory” that integrates production, oil storage, and offloading functions, FPSO’s electrical system needs to meet the stable power supply requirements in the complex marine environment, serving as the core infrastructure supporting oil and gas processing, power supply, and life support.
LNG vessels
LNG carriers require efficient and safe power solutions to support the liquefaction, transportation, and storage of natural gas, ensuring the safety and efficiency of energy transportation.
Large-scale commercial centers
Commercial centers have stringent safety requirements for electrical equipment, necessitating highly reliable and stable power solutions, along with efficient and energy-saving designs, to ensure the normal and efficient operation of the facilities.
Airport
Airports demand high fire resistance performance, reliability, and robust short-circuit and short-term overload capabilities for their electrical equipment. By utilizing high-efficiency products, we enable low-carbon operations.
Electric power integrated services
Leveraging its patented technologies and professional team, SUNTEN provides customized solutions for power distribution, photovoltaic, and energy storage systems.
Three Gorges Project
In 1999, SUNTEN undertook a major national “Ninth Five-Year Plan” research project, developing a single-phase epoxy-cast dry-type excitation transformer suitable for the Three Gorges Hydropower Station, filling a technological gap in China. -
SUSTAINABILITY
Sustainable development
Connecting technological innovation, ecological protection, and social responsibility through the power of electricity, we drive the energy system towards a carbon-neutral and sustainable future.
Sustainable development
Connecting technological innovation, ecological protection, and social responsibility through the power of electricity, we drive the energy system towards a carbon-neutral and sustainable future.
- CONTACT US
-
ABOUT
About
Sunten Electric Equipment Co., Ltd. is a Sino-foreign joint venture established by Sunten Electric Co., Ltd. (formerly Shunde Special Transformer Factory) and French Schneider Electric.
About
Sunten Electric Equipment Co., Ltd. is a Sino-foreign joint venture established by Sunten Electric Co., Ltd. (formerly Shunde Special Transformer Factory) and French Schneider Electric.
About SUNTEN
Sunten Electric Equipment Co., Ltd. is a Sino-foreign joint venture established by Sunten Electric Co., Ltd. (formerly Shunde Special Transformer Factory) and French Schneider Electric. The company was founded in 1988. History of SUNTEN
Established in 1988, through over three decades of steady development, the company has grown into a modern enterprise with a site area of 120,000 square meters and a total building area of 124,000 square meters, with a registered capital of RMB 1.09 billion. SUNTEN News
Learn more about SUNTEN's case studies and recent news.
- PRODUCTS
-
Products
In 1988, SUNTEN introduced German dry-type transformer technology and successfully developed China’s first epoxy resin cast dry-type transformer.
- SOLUTION
-
Solution
Avoiding data loss and business interruption through stable power supply. improving equipment fire prevention performance to ensure data security.
- SUSTAINABILITY
-
Sustainable development
Connecting technological innovation, ecological protection, and social responsibility through the power of electricity, we drive the energy system towards a carbon-neutral and sustainable future.
- ABOUT
-
About
Sunten Electric Equipment Co., Ltd. is a Sino-foreign joint venture established by Sunten Electric Co., Ltd. (formerly Shunde Special Transformer Factory) and French Schneider Electric.
Low-resistance grounding system
Product model: DZS (D) CG (F)-XX (voltage level)-XXX (rated current)
Example: DZSCG-35-1,000
Main application fields: power plants, power stations, industrial and mining enterprises, user power distribution stations and other power systems at 35kV and below
product superiority
Suitable for power systems at 35kV and below, with a noise level below 56dB, and F (H) insulation class for the grounding transformer, for both indoor and outdoor application. The resistor has a temperature rise limit of 760K under 10s rated current, with a resistance tolerance of 5%, and the resistance material is stainless steel.
The low-resistance grounding system has the core advantages of fast fault clearance, overvoltage suppression, and high reliability, suitable for scenarios with high cable network density, large capacitive currents, and the need for rapid fault isolation (such as urban distribution networks and data center power supply). The selection between the low-resistance grounding system and the arc suppression coil system should comprehensively consider the grid structure, fault handling strategy (transient/permanent fault tolerance), and economic factors.
Product-related parameters
Rated voltage: 35kV and below
Noise level: ≤56dB
Grounding transformer insulation class: F (H)
Application: both indoor and outdoor Resistor temperature rise limit: 760K (under 10s rated current)
Resistance tolerance: 5%
Resistance material: stainless steel
the industry
