The VACON NXP DCGuard is a device that maintains the safety and stability of a DC grid system by detecting and cutting off any faulty currents within 50 microseconds. This protects the surrounding equipment by preventing brownouts associated with typical fuse or breaker protections that take up to 100 times longer to trip. Further, it enables the connection of two DC grids with voltage differences, and, more importantly, prevents accidents and injuries.
The semiconductor protection device is based on standard VACON NXP inverter hardware and software. During a short circuit, the VACON NXP DCGuard disconnects the healthy side from the faulty side before the short circuit affects the healthy side. The fast isolation ensures the healthy side can continue to operate normally after the short circuit situation. This enables a secure DC grid and is a key enabler for DC networks used in many applications, such as data centers, commercial buildings, or factories.