Products We Provide
20KW AC Resistive Load Bank—
Resistive load banks are an important tool for testing and verifying the performance of power systems such as Storage Battery Systems, UPS Systems, Inverters, Ground Power Units, Auxiliary Power Units, Aircraft Power Generators, Wind Generators, Hydro Generators etc.- 100KW AC Resistive Load Bank
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It can simulate the real-life resistive loads and provides a rigorous test regime for power supplies from 1kW to 60MW. They simulate real-world electrical loads by dissipating power as heat through resistive elements. The load of a resistive load bank is created by the conversion of electrical energy to heat by power resistors. - 200KW AC Resistive Load Bank
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Resistive load banks are an important tool for testing and verifying the performance of power systems such as Storage Battery Systems, UPS Systems, Inverters, Ground Power Units, Auxiliary Power Units, Aircraft Power Generators, Wind Generators, Hydro Generators etc. - 500KW AC Resistive Load Bank
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Sunwin resistive load bank are available in stationary type for permanent installation or portable type with lifting rings, castors. Larger load banks, typically above 1700kw, are based on an iso container construction. Special finishes including custom paint colors and stainless steel casings can be supplied. - 1000KW AC Resistive Load Bank
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Designed with efficient cooling systems, Sunwin resistive load banks ensure optimal heat dissipation during operation.This prevents overheating and maintains the performance and longevity of the equipment. - 2000KW AC Resistive Load Bank
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Designed with cutting-edge technology and robust materials, Sunwin resistive load banks are ideal for testing generators, uninterruptible power supplies (UPS), and other critical power systems. - 3000KW AC Resistive Load Bank
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Designed with efficient cooling systems, Sunwin resistive load banks ensure optimal heat dissipation during operation.This prevents overheating and maintains the performance and longevity of the equipment. - 4000KW AC Resistive Load Bank
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It can simulate the real-life resistive loads and provides a rigorous test regime for power supplies from 1kW to 60MW. They simulate real-world electrical loads by dissipating power as heat through resistive elements. The load of a resistive load bank is created by the conversion of electrical energy to heat by power resistors.
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.
In the field of power detection, our load bank takes power detection technology that simulates real working conditions as the core, provides excellent solutions for various complex application scenarios, and helps customers ensure the stable operation of the power system and improve equipment performance and reliability.
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.
Product Applications
Military Industry / Scientific Research
Ship / Marine Engineering / Port
Oil Exploitation Offshore Platform- Port Transportation Shore Power
Generator Sets Manufacturing
Grid Electricity
WindPower Generation
Hydrogen Battery
Data Center
Power Nuclear
Hospitals
MetallurgicalChemical
The News
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It is crucial to the performance evaluation and optimization of the fuel cell. To determine whether the fuel cell test load is damaged, a comprehensive evaluation can be conducted through the following aspects:View More ⇀ - Future development trend forecast of load banks2025-01-04The future development trend forecast of load banks mainly includes intelligence, modularization, precise detection, environmental protection and energy saving, and multifunctionality.View More ⇀
- Solutions For Grid-Connected Detection Of New Energy Power Generation Equipment2024-12-22In recent years, with the global emphasis on renewable energy and the continuous advancement of technology, the new energy industry is developing at an unprecedented speed. As an important part of new energy, the stability and safety of distributed power generation systems such as wind power and solar power are directly related to the operating efficiency and reliability of the entire system. As the scale of grid connection continues to expand, higher requirements are also placed on the safe and stable operation of the power grid. These not only affect the stability of the power system, but also bring many confusions and challenges to new energy equipment manufacturers and users.View More ⇀
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