How to choose a suitable AC power supply？

Generally, we need to consider basic parameters such as power, output frequency, size, and efficiency. At the same time, we also choose functions such as regenerative power grid, harmonic simulation, and accurate reproduction of self-defined waveforms according to test requirements. Understanding the different functions, performances, and technologies of AC power supplies will help engineers choose the product that best suits their application requirements, so let's first learn the general differences between the various products.

Classified by basic parameters

Classified by product design

IT7800 —— Waveform simulation, high power output

IT7800 series high power programmable AC/DC power supply adopts high power density design, power up to 15kVA in 3U size. Through master-slave paralleling, it can also provide high-capacity AC and DC output up to 960kVA, providing a compact and efficient solution to meet the growing high-power applications. It is widely suited in the R&D, production and quality inspection stages of new energy, rail transit, semiconductor and scientific research institutions and other fields.

✔High power density, 2U up to 6kVA*6, 3U up to 15kVA

✔Master-slave current sharing, parallel up to 960kVA, no performance degradation

✔Single-phase, three-phase, reverse-phase, multi-channel and other different output modes

✔Provide rich trigger configurations, capture the voltage waveform of the DUT synchronously, and realize data collection and simulation functions

✔Multi-phase function, realize 6-phase, 12-phase power output

IT7900 —— Efficient and regenerative

IT7900 series regenerative grid simulator is suitable for testing various grid-connected products, such as PCS, energy storage system, micro-grid, BOBC (V2X) and power-related hardware loop simulation (PHiL), etc. Provide a professional islanding test mode, users can set R, L, C and active power, reactive power parameters, simulate the nonlinear load of the power grid, and realize the certification test of anti-islanding effect protection. At the same time, it has the function of energy recovery, provides 100% current absorption capacity, and feeds back to the grid through the equipment, saving electricity and heat dissipation costs.

✔Full four-quadrant regenerative grid simulator

✔ Power amplifier, suitable for power hardware-in-the-loop (PHiL) testing

✔Professional island test mode, support R/L/C and active and reactive power settings

✔Meet grid-connected regulations such as low voltage ride through, phase jump, frequency change, harmonic injection, etc.

✔ Built-in IEC61000-4-11/4-13/4-14/4-28 and other regulatory waveform tests

IT7900P —— One in three

IT7900P series high-performance regenerative grid simulator provides users with a leading integrated test solution. It integrates 3 devices, users can use it as an IT7900 grid simulator, and has all the functions of the IT7800 programmable AC power supply, and can also be used as IT8200 regenerative AC/DC load, which is widely used in photovoltaics, energy storage systems, new energy vehicles and other fields.

✔Full four-quadrant regenerative grid simulator

✔Full four-quadrant regenerative AC/DC electronic load

✔High power programmable AC power supply

✔CE mode can simulate various circuit topologies such as single-phase rectifier RLC and parallel RLC

In addition to the above three newly launched AC power sources IT7900P/IT7900/IT7800, ITECH also has the IT7600 with a frequency up to 5kHz, the lightweight IT-M7700 and the cost-effective IT7300, providing engineers with more testing options. These AC power supplies can meet more industry tests, such as electric vehicles, photovoltaics, energy storage, power grids, home appliances, production and other fields.

For more product information, please visit ITECH official website https://www.itechate.com/