Kewell Technology Co., Ltd. is a leading provider of advanced test equipment. They focus on three major business segments:

• Programmable power supplies
• Hydrogen-energy test systems
• Power semiconductor test systems

Rooted in programmable power technology, their solutions serve industries such as renewable energy, electric vehicles, electrolysers and fuel cells, and power semiconductors, with expanding applications in rail transit, automotive electronics, intelligent manufacturing, aerospace, and laboratory testing.

Kewell Test Product Areas

Programmable Power Supplies

S7200 Bi-Directional Programmable DC Source
The S7200 series integrates the functions of bi-directional DC power supply and DC electronic load, featuring free/active source-load mode switching to meet users' diversified testing requirements. In the bi-directional DC power supply mode, it has both source and sink capabilities, the former for providing power and the latter for returning the energy absorbed from the device under test (DUT) back to the grid.

M2000-MS Series E-Motor Emulator
The M2000-MS Series E-Motor Emulator (EME) is a new power electronic product integrating a static motor and load simulation. Based on the third-generation wide bandgap SiC power semiconductor devices, the series is highly modularised and standardised. It enjoys widespread application in the development and testing of drive motor controllers and general-purpose inverters.

High Power Programmable Bi-directional DC Power Supplies
Adopting modular designs, Kewell has launched the second-generation bi-directional programmable high-power DC power supplies - the D2000-EV and D2000-IV series. Both feature the third-generation SiC design, boasting high precision, high power density, high dynamic response, and high efficiency.

C3000 High Performance Programmable DC Power Supply
The C3000 Series is a high-precision programmable DC power supply boasting a wide voltage range, high dynamic performance, and ultra-high power density. Featuring auto-range output and flexible voltage & current combinations, the C3000 Series is widely used in industries such as PV, EV, and aviation. This series is available in high and low voltage versions.

S7000 Series Bi-directional Programmable DC Power Supply
The S7000 Series is a high-precision, regenerative DC power source. As a DC source, it supports dual-quadrant energy flow, with high conversion efficiency and high power density. It also supports the parallel operation of multiple devices. This series is available in high and low voltage versions.

E5000 series Programmable DC Electronic Load
Kewell's E5000 Series is a compact, high-power DC electronic load featuring a wide operating range and high dynamic frequency. In 4U size, it powers up to 6.6kW and outputs voltage up to 1200V. It supports at most 10 E5000 devices in parallel operation.

A2000 Series Bi-directional Programmable AC Power Supply
A2000 Series is a bi-directional programmable AC power supply featuring high accuracy, high dynamic response, and high efficiency. The series adopts SiC design of the third-generation wide bandgap semiconductor devices, allowing it to be modularised and standardised, offering industry-leading performance and experience. A2000 Series supports waveform editing, harmonic/inter-harmonic injection, RLC load and other functions, with built-in standard curves of different countries to meet the testing requirements of various industries.

A1100 Series E-motor Emulator
The A1100 series e-motor emulator is a new type of power electronics device with integrated motor & load simulation, containing dynamic mathematical models and load models for various types of motors ( permanent magnet synchronous motor PMSM, asynchronous motor ASM, etc). The main circuit utilises high-speed power switching devices, and the control and model computing units utilise multi-core high-speed processors, allowing accurate simulation of motor and load characteristics under all types of working conditions and PWM variable frequency drive conditions. Ideal for the R&D process, off-line and certification testing of motor controllers and general frequency converters.

G6000 Series Bi-directional Programmable AC Source-load System
The G6000 series is a four-quadrant AC power supply featuring high precision, high power density, and high dynamic performance. As a source, it supports the adjustment of three phases separately, while having LIST/PULSE/STEP and other programming functions to simulate the disturbance characteristics of grid voltage and frequency. It also has waveform editing, harmonic and inter-harmonic modes, able to simulate abnormal grid conditions and test the grid tolerance of the device under test (DUT). As a load, it has built-in AC load models to simulate different load characteristics.

B2000-EC Series Cell Charge and Discharge Test System
Kewell's B2000-EC series is an efficient, high-performance system for cell charge and discharge testing. The test system features a modularised design, high precision, high dynamic response, multi-channel parallel connection, and bidirectional power supply. It integrates data acquisition and monitoring in the charging and discharging process. B2000-EC series enjoys widespread applications in the EOL testing and R&D for cells of traction battery and energy storage battery, as well as testing performed by research institutes.

B2000-EP Series Battery Pack Charge and Discharge Test System
The B2000-EP series is an efficient, high-performance system for battery pack charge and discharge testing. It features high precision, high dynamic response, high power density, and data logging time of 1ms, while integrating data acquisition and monitoring. The B2000-EP series enjoys widespread applications in the EOL testing and R&D for traction battery and energy storage battery packs, as well as testing performed by research institutes.

Hydrogen Test Systems

C100 Series Fuel Cell Test System for testing single cells
The C100 Fuel Cell Test System aims to provide a high-precision, high-stability test platform for testing fuel cells and relevant materials. The system mainly consists of a gas flow and pressure control unit, a gas temperature and humidity regulation unit, a measurement and control unit, a safety protection unit, and an electronic load. Through integration of the dedicated software, it achieves functions such as online measurement, auto-scripting, multi-window graphical display, and automatic monitoring of various parameters. It is applicable to fuel cell material, component and single-cell testing by fuel cell material R&D enterprises, fuel cell manufacturers, universities, research institutes, and third-party organisations.

E500 Series Single-cell Test System (Low Pressure)
The E500 Series aims to provide an accurate and reliable platform for PEM/ALK/AEM electrolyser single cell and material-level testing. The system mainly consists of the circulation system, N2 purging unit, pressure regulation unit, gas-water separation unit, gas analysis pre-processing unit, PLC acquisition and control unit, HMI, and safety monitoring unit. With our self-developed test software, it supports polarisation curve test, electrochemical test, online monitoring of H2 in O2 concentration, stressor test, durability test, as well as test for H2 producing efficiency, H2 quality, and product service life.

DS-600 Series EIS Test System
The DS-600 Series high-power impedance test system aims to provide precise impedance testing (fixed frequency and sweep frequency modes) for a stack or an electrolyser. Combined with the Kewell E5000 series electronic load, this series achieves high dynamic, high precision, and flexible performance, and it applies to stack impedance testing for fuel cells and electrolysers with power ranging from kW to MW levels.

Electrolyser Test Systems
The HETS-AEM-S, HETS-PWE-S, and HETS-ALK-S Series aims to serve as an accurate, reliable and convenient platform for testing AEM, PEM and ALK electrolysers. It mainly consists of the gas-water separation unit, gas concentration monitoring unit, gas cooling and drying, hydrothermal management unit, linkage pressure control unit, measurement control unit, and safety protection unit. Through online data monitoring and processing by the system platform, the performance, lifetime, reliability and safety of the electrolyser under test can be analysed. The series applies to the R&D, verification and EOL testing of electrolysers.

Fuel Cell Stack/System Test System
FCTS-S Series aims to provide an accurate, reliable and convenient test platform for fuel cell stacks. The system mainly consists of a gas flow and pressure control unit, gas temperature and humidity control unit, a thermal management system, a safety protection unit, an electronic load, and a cell voltage monitoring unit. Online data monitoring and processing by the test platform enables analysis of the performance, service life, reliability and safety of the stack under test. It is applicable to the R&D, calibration and EOL testing of fuel cell stacks.

FCTS-M Fuel Cell System (Engine) Test System
The FCTS-M Series aims to provide an accurate, stable and reliable test system for fuel cell systems. The system mainly consists of the hydrogen supply unit, thermal management unit, low-voltage supply unit, and safety protection unit. It is applicable to testing for the function, performance, service life, reliability and safety of fuel cell systems, as well as the R&D, verification and EOL testing of fuel cell systems.

Power Semiconductor Test Systems

MX300-C Power Device Thermal Characteristics Test System
The MX300C Series Power Device Thermal Characteristics Test System is an automated thermal characteristics test bench mainly consisting of a data acquisition unit, a temperature control unit, and a power supply. It is primarily used for power cycling and thermal characteristic testing of power devices such as IGBT and SiC MOSFET modules, with the ability to simulate and measure device performance throughout their operational lifespan.

MX700-S Static Test System
The MX700S Static Test System is composed of a high-voltage power supply, fixture, measurement, relay switching unit, current source, and supporting test instruments. Equipped with Kewell's independently developed testing software, it provides a stable and precise platform for testing the static characteristics of power devices. The product is applicable to static testing of IGBT, SiC MOSFET, diode and other power semiconductor devices.

MX300-R High Temperature Reverse Bias/Gate Bias Test System
The MX300-R Series High Temperature Reverse Bias/Gate Bias Test System is a high-temperature voltage stress life test equipment. It primarily consists of heating and temperature control units, high/low voltage sources, as well as relevant control and acquisition units. This system is mainly used for voltage stress life tests on power devices such as IGBT, SiC MOSFET and diode to evaluate their reliability.

MX700-D SiC Dynamic Test System
The MX700D silicon carbide dynamic test system comprises a high-precision programmable DC power supply, fixture unit, measurement and control unit, gate drive unit, protection unit, and supporting test instruments. It incorporates the company's self-developed testing software, providing a stable and precise platform for testing the dynamic characteristics of silicon carbide devices.