Products We Provide
Core Competence Technology
Generator set manufacturing test center
Design/production/construction/integration/maintenance
Realization of rapid testing of multi-size generator sets
No transformer transit required
Direct testing of medium and high voltage generator sets
Save testing costs / ensure insulation safety
Overcoming technical difficulties to achieve capacity
Resistance testing
Data center simulation test more accurate
Electrical/mechanical strength/vibration test
Air volume/salt spray/rain/high and low temperature test
Electromagnetic compatibility/voltage resistance/aging test
Continuous Trouble-Free Operation
Service For International Famous Brand Generator Sets
240 Hours Continuous Uninterrupted Test
Seaside/humid/rainy environment
High altitude/cold/high temperature environment
Uninterrupted operation
Circuit design / mechanical design / insulation design
Software development/arm/dsp/plc development
Fluid dynamics based simulation calculations
Scientific design of equipment heat distribution and release
Scientific design of resistance alloy material ratio
Stable resistance value / high working temperature limit
Self-developed full batch resistance testing system
Pre-sales technical engineers research user needs
Design personalized solutions
OEM/ODM service
After-sales service team stationed at customer site
Complete equipment installation/coupling/training
24-hour after-sales technical support
About Us
The Power Supply Testing Industry Leading Brand
Qingdao Sunwin Technlogies Co., Ltd (Sunwin) is a professional enterprise engaged in R&D, manufacturing and service of intelligent power supply testing equipment. Based on load Bank, provides test systems and intelligent testing equipment for the generation, transmission, transformation, control and consumption of electric energy.
Sunwin mainly develops and manufactures power supply detection and maintenance equipment such as dry load bank, liquid-cooled load bank, container load bank, AC and DC power supplies, and intelligent equipment. The products can provide load tests for high-power power supplies such as generator sets, battery packs, and UPS. Through scientific tests, the performance and reliability of power supply equipment can be tested, the quality control capabilities of power supply equipment can be improved, and safety accidents and economic losses caused by power failures can be reduced.
Sunwin offer one-stop solutions to generator set & battery & UPS power manufacturers. Its products are widely used in data centre, shipbuilding, offshore platform, state grid, nuclear power, hospital, communication, railway etc filed.
Intelligent Testing System For Generator Sets
Working Principle
AC Testing Series
Generator Sets Intelligent Test System
Steady-state/Transient Testing Of Generator Sets
Generate Test reports According To National Standards
Medium And High Voltage AC Load Bank
6.6/10.5/20kV High Voltage Generator Sets testing Resistance/Inductive/ Capacitive Load Bank
Inverter Anti-islanding Test Systems
Photovoltaic Inverter Grid Connection Test
Anti-islanding/High And Low Voltage Ride-through Testing
Power Balancing Load Bank System
Frequency Regulation
Load Fluctuation Absorption/Anti-reverse Power
Feedback Grid Type Electronic Load Bank
Test power Recycling And Reuse Comprehensive Energy Saving Rate >85%
DC Testing Series
Hydrogen Fuel Cell Test Systems
SOFC Hydrogen Fuel Cell Load Characterization Test Switching Load Bank/Feedback Load Bank
Data Center Rack Mount Load Bank
AC/DC Universal/Analog Server Power Consumption
Air-cooled / Liquid-cooled Load Bank
Battery Pack Charging Equipment
Intelligent Three-stage Charging
Simultaneous Charging Of Multiple Battery Packs
Battery Pack Discharge Monitoring Equipment
Battery Pack Capacity
Test/Activation Repair Single Cell Internal Resistance
Monitoring
Electric Vehicles Charging Equipment
DC/AC Chargers Vehicle- mounted Chargers
Energy Feedback to Power Grid Type Electronic Load Bank
Energy feedback to power grid type electronic load bank is based on PWM bidirectional rectification circuit and wide-range voltage converter, which can feed the energy lost by load back to the grid, reducing the energy waste in battery testing.
● Product featuresIt has constant current, constant power, constant resistance, constant voltage and multiple load modes.
● Rapid transient response, ≤5ms.
● High-speed digital control technology is adopted.
● Load accuracy reaches 0.1%FS.
● PWM rectification technology is adopted, power factor>0.99, power supply end harmonics<3%, efficiency greater than 93%.
● Buttons or seven-inch touch screen are adopted, which is convenient for operation and display.
● It has multiple communication interfaces, which can realize remote operation, unattended operation and embedded test system.
● Modular design is adopted, which makes the equipment easy to maintain in the later stage.
● Multi-phase interleaved DCDC and three-level high-efficiency grid-fed working mode have low temperature rise, high operating reliability and long service life.
● Load-side reverse connection detection protection function. If the power supply load is reversely connected, the contactor is not allowed to close the switch.
● Communication interface CAN and RS485, applicable to CAN2.0B communication protocol.
Sunwin 1000KW Liquid-cooled Load Bank
Sunwin presents the 1000KW liquid-cooled load bank, a pinnacle of precision power testing integrated with advanced cooling technology, designed for new energy, data centers, and beyond.
Key Features
High-efficiency Liquid Cooling：Utilizes 30% propylene glycol solution with ≥95% heat exchange efficiency. DN120 flange water circuits enable 84m³/h flow rate, ensuring continuous operation without overheating. All pipes adopt corrosion-resistant 304 stainless steel with insulated inner walls for industrial-grade durability.
Precision Load Control：8-step resistive load adjustment (25-200KW), unity power factor, and ≤5% load accuracy. Support three control modes: panel switches, touchscreen, and PC software, meeting laboratory-level testing standards.
Comprehensive Safety Protection：Incorporates 8-layer protection (temperature, short-circuit, overload, leakage, etc.). Two-stage water temperature alarm triggers load unloading, with 1MPa pipeline pressure resistance and IP23 protection for -10℃~50℃ environments.
Intelligent Data Monitoring：HMI interface real-time displays voltage, current, power, and temperature curves with ±0.5℃ accuracy. USB data export and local storage facilitate full-cycle performance analysis.
Crafted with GTAW-TIG welding and 316L alloy resistors, the ≤1300kg lightweight design balances durability and flexibility. From nuclear power debugging to marine power systems, Sunwin’s 1000KW load bank sets new standards in power testing excellence.
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Product Applications
![Military Industry / Scientific Research]( "Military Industry / Scientific Research")
Military Industry / Scientific Research![Ship / Marine Engineering / Port]( "Ship / Marine Engineering / Port")
Ship / Marine Engineering / Port![Oil Exploitation Offshore Platform]( "Oil Exploitation Offshore Platform")
Oil Exploitation Offshore Platform![Port Transportation Shore Power]( "Port Transportation Shore Power")
Port Transportation Shore Power![Generator Sets Manufacturing]( "Generator Sets Manufacturing")
Generator Sets Manufacturing![Grid Electricity]( "Grid Electricity")
Grid Electricity![WindPower Generation]( "WindPower Generation")
WindPower Generation![Hydrogen Battery]( "Hydrogen Battery")
Hydrogen Battery![Data Center]( "Data Center")
Data Center![Power Nuclear]( "Power Nuclear")
Power Nuclear![Hospitals]( "Hospitals")
Hospitals![MetallurgicalChemical]( "MetallurgicalChemical")
MetallurgicalChemical
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