![]() ![]() ![]() ![]() | ESD Series
High-Power DC Power Supply The ESD Series is an IGBT-based, PWM switching DC power supply, offering fully configurable output power, voltage, and current ranges.
Delivering up to 10 MW and 50 kV, the ESD Series meets the needs of highpower applications and, the bidirectional -R option enables battery simulation for new energy testing. The Dual DSP+FPGA design enables both high precision and rapid response. It provides a fine control resolution of 0.1 ms for precise output adjustment, coupled with fast dynamic performance.
The ESD Series ensures high reliability through multi-level monitoring and protection for key components, communication, and the overall system. |
Configurable power, voltage and current ranges
Maximum output power: 10 MW
Maximum output voltage: 50 KV
Master-slave parallel for power expansion
Operating Modes: Constant Current(CC), Constant Voltage (CV), Constant Power (CP), and Constant Re-sistance (CR)
Voltage and current sequences programmable via GUl
Built-in soft-start function effectively suppresses in-rush current during startup
Configurable as a bidirectional DC power supply(-Roption),operating in two quadrants for new energytesting (e.g.battery simulation)
Configurable for fast dynamic response:Current risetime(0%-90%)<1 ms
Configurable as an energy regenerative DC loadfunction (-LD option)
PV simulation (-PV option)
Low-voltage operation mode (-ZV option): Capableof full current output down to 0.4 V
Optional air cooling or water cooling for heat dissipation
Configurable output insulation monitoring func-tion(-INS option)
Standard interfaces: LAN and RS485
Optional interfaces: CAN, Analog Input/Output
Communication protocols: Modbus/SCPl
Output terminal equipped with output switch
Remote sensing function
Automatic wide range output
ESD series DC power supply has an automatic wide-range output function. Under the condition of rated output power, the output range of voltage/current can be adjusted, such as: high-voltage small current or lowvoltage large current (also applicable in sink power mode). The same type of power supply can cover a wider range of power applications. ESD standard models provide x1/x3/x4 current. For customized power/voltage/ current, please consult the factory.

Fast current rising
ESD Series has excellent dynamic performance of current rising, which makes it ideal for battery test and battery simulation. Two versions are provided, and current rise time of each version is different (below waveforms are take ESD 200-600-600-R-BSS for example).


Bi-Directional (Re-generative) (-R option)
With the -R option, the unit can operate in source and sink mode. It has the capability to return the energy fully back to the grid.
Re-generative DC Load (-LD option) 1
ESD series with -LD option can be used as regenerative DC electronic load. DC load simulation includes constant current, constant resistance, constant voltage, and constant power modes.
Low Voltage Operation Mode (-ZV option)
ESD series DC electronic load with - V option can produce large current that meets the requirements under the input condition close to 0.4V, which can evaluate the electrical characteristics of the fuel cell (such as VI), etc.
Battery Test
ESD series DC power supply can be used for characterization of power battery packs. It is used to test the charging and discharging performance, temperature rise characteristics, and cycle life of the power battery pack. Through the GUI software, different charging and discharging profiles can be programmed, and test results are displayed in real time.

Battery Simulation (-BSS option)
ESD Series DC power supplies provides GUI software to simulate the charging and discharging characteristics of the power battery pack/package and it provides battery simulation software, which can simulate different types of batteries, lithium-ion batteries, etc., supporting multiple parameter settings, including: battery capacity, the number of cells in series and parallel, the state of charge, etc.

PV Simulation (-PV Option)
With PV option, ESD series power supplies can be used to simulate IV curves of various solar panels, under various temperature and irradiance condition, and conduct static and dynamic MPPT tests according to EN 50530:2010. MPP update rate: 200Hz. Irradiance levels: 0 ~ 1500 W/m². Temperature: -10 ~ +100°C. Temperature coefficient: +1% ~ -1%/°C.

Graphical User Interface
GUI software is installed in front touch panel, which uses Windows OS. The software provides following functions:
Output settings and limits
Sequence output settings
Display measurements: voltage, current, power, etc.
Capture, display and save output voltage and current waveforms Display power source faults

-232 RS232 program interface
-ATI Analog control interface (0~5V)
-LD Regenerative DC load function
-R Regenerative mode
-BSS Hardware and software for Battery simulation
-CAN CAN-bus program interface
-PV Hardware and software for PV simulation
-ZV Low Voltage Operation Mode
-W Use water-cooling
-MS Master-Slave interface
-INS Output terminal insulation monitoring function
-CH(X) x channels output
-HPD High power device, Please consult factory
-2X Isolated dual channels output
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