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MengziIT8000 series feedback DC electronic load

The IT8000 series is a high-power regenerative DC electronic load developed based on the third-generation SiC technology. It can simulate various load characteristics and feed energy back to the grid, saving users electricity and cooling costs while meeting energy-saving and environmental protection requirements.

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MengziElectronics and Electrical Engineering

MengziDC Electronic Load Series

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Product Description

IT8000 Series Regenerative DC Electronic Load

The IT8000 series is a high-power energy regenerative DC electronic load developed based on the third-generation SiC technology. It can simulate various load characteristics and feed energy back to the grid, saving users electricity and cooling costs while meeting energy-saving and environmental protection requirements. Adopting a modular high-power density design, it can provide up to 18kW of power absorption within a 3U volume. Through master-slave parallel connection and active current sharing, the power can be expanded to 2MW. It is especially suitable for testing large-power power supplies, batteries, photovoltaic cells, electric vehicles, energy storage systems, and other testing fields.

Product Features

♦ Can feed DC power back to the local grid, with a feedback efficiency of up to 95% *1

♦ High power density, 18kW in only 3U height Master-slave parallel connection expandable to 2MW

♦ Input voltage up to 2250V

♦ Current output range: 0 to 2040A (single cabinet), 0 to 8000A (inter-cabinet parallel connection)

♦ Uses third-generation SiC power semiconductor devices

♦ Supports LIST function and can import LIST files via USB

♦ Grid power accumulation function

♦ Battery testing function, short-circuit function test

♦ Has a pre-charge function to prevent DC load current overshoot

♦ Various protection functions (supports OVP, OCP, OPP, OTP, Vsense Reverse connection protection, power failure and input undervoltage protection)

♦ Standard USB/CAN/LAN/digital IO interfaces, and optional GPIB/analog and RS232 interfaces

♦ Supports SCPI protocol, LabVIEW

Application Areas

Energy recovery efficiency of approximately 95%

Unlike ordinary energy-consuming electronic loads, the IT8000 series regenerative DC electronic load features energy recovery, recycling energy for on-site use instead of dissipating it as heat. Its conversion efficiency can reach approximately 95%, significantly reducing electricity costs for users and eliminating the need for air conditioning or expensive cooling systems, thus reducing noise.

High Power Density

Ordinary energy-consuming electronic loads not only consume energy and electricity but are also large in size and weight. A 30kW energy-consuming load requires at least 24U of space, making it difficult to transport and expensive. The IT8000 series regenerative DC electronic load uses a high-power density design, providing up to 18kW of power absorption within a 3U volume. For the same output power, the volume is reduced by 80%.

Power Accumulation, Energy-Saving Effects at a Glance

The IT8000 series regenerative DC electronic load uses power electronics conversion technology to recycle the output energy of the power supply being tested after completing the test power experiment. Through high-speed voltage and current sampling, users can directly view current energy parameters on the instrument panel, including the voltage, frequency, and power of each phase. They can also view the total power, current total feedback power, and historical total feedback power, making the energy-saving effects clear at a glance. After power-off and restart, the IT8000 series continues accumulating power based on the power level before the last shutdown.

List Function

The IT8000 series' List mode can accurately and quickly complete complex arbitrary current change modes and synchronize with internal or external signals to complete multi-level load testing, saving customers significant costs. By editing the step value, pulse width, and slope of each step, various complex sequences can be generated, allowing users to complete tests of various load waveforms. In CC mode, the IT8000 series can set the rise and fall time.

Battery Testing Function

The IT8000 series can use the constant current mode to perform battery discharge tests, and can independently set the discharge termination conditions: cutoff voltage, cutoff capacity, and discharge time. When any of the three conditions is met, the system automatically interrupts the test. During the test, the battery voltage, discharge time, and battery discharge capacity can be observed, reflecting the reliability and remaining life of the battery.

Parallel Operation Technology

Advantages:

♦ The entire IT8000 series uses ITECH parallel operation technology

♦ The performance parameters after parallel operation are the same as those of a single unit

♦ The system does not require calibration after parallel operation

♦ Parallel operation uses fiber optic transmission, with strong anti-interference capability

♦ Uses a digital parallel operation scheme, with full fiber optic isolation, effectively protecting the equipment and the device under test

Multiple Protection Functions

The IT8000 series has an automatic grid status detection function. When the grid connection is suddenly disconnected, the product will shut down, enabling reliable grid connection and island protection functions. The IT8000 series can also monitor the DC input voltage and frequency and has overvoltage protection (OVP), overcurrent protection (OCP), overpower protection (OPP), and overtemperature protection (OTP).

Product Model

MengziIT8211 economical CNC electronic load

MengziITS9500 Power Automatic Testing System

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MengziIT8000 series feedback DC electronic load

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