6RA7086-6KS22

The 6RA7086-6KS22 by Siemens is a microprocessor DC rectifier in a single-quadrant format, ideal for applications requiring robust power management. This unit employs a topology known as a 3-phase six-pulse B6C bridge, permitting it to handle substantial input loads. At its operational peak, the rectifier accepts a line voltage of 690 V AC and can manage a line current of 597 A.

It produces a substantial DC output voltage measuring 830 V, coupled with a continuous current output rated at 720 A, enabling efficient power distribution capable of approximating 598 kW. For its field input/output functionality, the rectifier converts 460 V input down to a field output of 375 V at 30 A.

The unit employs a thyristor bridge for its switching technology, contributing to high reliability under variable operational conditions. An impressive overload headroom of up to 1.8 times the short-term capacity is also present. To maintain optimal performance, this rectifier utilizes forced air cooling, ensuring functionality within a temperature range of 0 to 45 °C.

The 6RA7086-6KS22 supports enclosure ratings that vary from IP00 to IP55, facilitating adaptability to differing environmental conditions. Furthermore, it includes a control interface compatible with both analog and digital I/O systems, making it a versatile solution for diverse applications. Regulation is managed through both speed and current control loops, ensuring precise operation. Note that this rectifier requires an external EMI suppression filter for complete compliance.