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VACON® NXP DCGuard

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Ensure safe DC-grid selectivity

VACON® NXP DCGuard™ enables fast disconnection and full selectivity be­tween DC grids for all VACON® NXP series drives.

Utilizing DC grids rather than AC grids enables power distribution with lower power losses. However, ensuring selectivity and limited short circuit energy requires more sophisticated protection devices.

VACON® NXP DCGuard is a semiconduc­tor protection device that maintains the stability of the DC grid by detecting and cutting off any faulty DC currents, fast. It isolates the faulty part of the system within 5 microseconds, protecting the surrounding equipment and ensuring uninterrupted operation.

It has DNV-GL, ABS, and Lloyd's Register type approvals, simplifying system approval for use in marine environments.

Current range

  • 465-800 VDC………3-4140 A
  • 640-1100 VDC…..….4-3100 A
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Recursos e benefícios

  • Correct system selectivity due to short circuit protection

  • No overvoltage spikes at current cut-off

  • Connect two different DC grids with voltage differences up to full DC voltage, thanks to controlled voltage ramp-up

  • Transmission cable overload protection

  • Reliable, proven technology

DC grids and selectivity using VACON® NXP DCGuard™

DC grids and selectivity using VACON® NXP DCGuard™

Utilizing DC grids instead of AC grids can improve system efficiency and system footprint by up to 20%. And there is a significant potential for energy saving especially when combining DC grids, energy storage and/or variable speed generators.

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