6RA7090-6KV62

The Siemens 6RA7090-6KV62 is a 4-quadrant DC rectifier, providing exceptional performance characteristics for controlling motors and other DC applications. Capable of responding in less than 10 milliseconds, this rectifier ensures accurate power delivery, supporting seamless operation in dynamic environments. The unit integrates smoothly with Siemens systems, enhancing its versatility and application potential.

Operating on a 3-phase AC input at 690 volts, the device supplies armature DC at a voltage of 725 volts, accommodating input currents of up to 1000 amps, with actual armature input rated at 829 amps. The rectifier uses a B6 bridge configuration, offering efficient conversion properties. Additionally, it includes separate excitation for its field control, which allows for finer adjustments based on load conditions. The field input voltage is specified at 460 volts, with a capacity to output up to 30 amps of current.

With its digital thyristor cooling design, the 6RA7090-6KV62 effectively manages heat during operation, ensuring longevity and reliability, and weighs approximately 85 kilograms. This combination of specifications solidifies its role in high-performance applications.