PRODUCTS>SEI-18K-U3P (14-18 kW)

SEI-18K-U3P (14-18 kW)

The SEI series is a new type of solar energy storage inverter that integrates solar energy storage, grid charging, energy storage and AC sine wave output. It is highly compatible with a variety of application scenarios, including residential energy storage systems. Adopting DSP control and advanced control algorithms, it achieves fast response speed and high reliability, and complies with industrial standards, providing users with a reliable and efficient energy conversion solution.

Product Introduction

Features:

  1. Supports connection of lead-acid and lithium-ion batteries.
  2. Equipped with intelligent charging function.
  3. Built-in AC coupling function.
  4. Features dual wake-up function for dormant lithium-ion batteries; both grid power and photovoltaic power can activate the battery.
  5. Supports three-phase pure sine wave output.
  6. Supports 100% unbalanced output, with single-phase output power exceeding 50% of the rated power.
  7. Allows phase voltage adjustment within 100 V AC, 105 V AC, 110 V AC, 115 V AC, 120 V AC, 127 V AC and 133 V AC.
  8. Supports three photovoltaic inputs, with simultaneous three-channel MPPT maximum power tracking for load capacity.
  9. Three-channel MPPT with efficiency up to 99.9% and a maximum single-channel current of 40 A, perfectly matching high-power solar modules.
  10. Adopts time-of-use charge and discharge setting function, enabling users to take advantage of peak and valley electricity tariffs to save power costs.
  11. Built-in energy-saving mode to reduce no-load power loss.
  12. Provides two output modes: grid bypass and inverter output, with uninterruptible power supply capability.
  13. Large LCD screen with dynamic flow chart design for intuitive viewing of system data and operating status.
  14. Multi-functional protection logic, including short-circuit, overcurrent, overvoltage, undervoltage, overload and overtemperature protection.
  15. Supports CAN, USB and RS485 communication.

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