WEL Electronics
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Inverter 50 kVA 240 VDC 220/380 VAC SYNCHR ATS STS BYPASS

Purpose:

  • The inverter converts DC voltage into a 50 Hz sinusoidal AC voltage.
  • It can supply a wide range of industrial and domestic loads rated at 220–380 V AC, 50 Hz, up to 50 kVA for three-phase loads and up to 17 kVA per phase for single-phase loads.
  • The inverter has a built-in automatic transfer switch (ATS) that moves the load between the mains input and the inverter according to the priority the user sets on the inverter’s controller.
  • Has a built-in fast thyristor switch (static switch) that transfers the load between the mains input and the inverter quickly.
  • Monitors the state of the battery and the mains and shows the input and output states.

Key features:

  • Output waveform — pure sine wave.
  • Silent, high-efficiency operation.
  • Total output power 50 kVA.
  • High-efficiency combined liquid-and-air cooling with 4 cooling levels and 5 automatic operating modes.
  • The battery charge monitoring system extends battery life by reducing the number of charge/discharge cycles.
  • Control panel with a backlit LCD showing the inverter output currents and voltages.
  • 6 LED indicators showing the inverter status.
  • Audible warnings for the various operating modes, faults and system problems.
  • The control panel can be used to program operating modes, the monitored battery and mains parameters, and the modes of the built-in ATS.
  • Relay signalling inverter running or shutdown.
  • Low standby power consumption (under 20 W).
  • Automatic protection against overload and overtemperature.
  • Programmable deep-discharge protection for the batteries.
  • Soft start with large loads.
  • Built-in fast thyristor-based ATS.
  • Built-in automatic bypass that transfers the load to the mains when the battery is fully discharged or absent.

Documentation:

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