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Over-current protection relay VACON® NXP DCGuard
overloadDCdigital

over-current protection relay
over-current protection relay
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Characteristics

Measured/monitored value
overload, over-current
Network
DC
Other characteristics
digital

Description

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. VACON® NXP DCGuard has DNV-GL and ABS type approvals, which simplifies system approval for use in marine environments. Current range 465-800 VDC………3-4140 A 640-1100 VDC…..….4-3100 A Features and benefits • 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

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.