6RA7090-6GS22

The Siemens 6RA7090-6GS22 is a single-quadrant DC converter that excels in performance under various load conditions. Designed for connection to a three-phase AC supply of 575 volts, this unit can manage an AC input current nearing 829 Amperes. Utilizing a B6C bridge connection topology, this converter ensures reliable operation.

Operating at a rated armature voltage of 690 volts DC, the device can support continuous armature currents up to 1000 Amperes, providing significant power management capabilities. For specific applications in the United States, it can alternatively provide 690 V DC at 700 A. The converter is outfitted with a field output rated at 375 V DC with a tolerance of 30 A.

Cooling is managed through a forced-air method using an integrated fan, which is essential for maintaining optimal operating conditions. This single-quadrant converter is designed to function effectively within an ambient temperature range of 0 to 40 °C; performance may require derating above this temperature.

The unit can endure short-term overload conditions up to approximately 1.5 times the rated specifications for brief durations, affirming its capability for demanding tasks. In physical dimensions, the 6RA7090-6GS22 measures around 780 mm in width, 410 mm in height, and 360 mm in depth, with a typical mass of about 100 kilograms. This robust design allows for seamless integration into various setups, delivering reliable conversion and control functionality.