6RA7093-4LV62

The Siemens 6RA7093-4LV62 is a robust 4-quadrant DC master rectifier that excels in high-power applications. Operating with a B6 full-bridge thyristor supply circuit, it is effective in converting three-phase AC power. The armature input voltage reaches approximately 830 V AC, with an input current rating of around 1244 A AC. When configured, the rectifier delivers an armature output voltage of about 875 V DC at a maximum output current of approximately 1500 A DC.

With a field supply managed by a controllable field rectifier, the input voltage for the field supply is about 460 V AC, yielding an output voltage of approximately 375 V DC at a current of around 40 A DC. Designed to handle demanding conditions, the 6RA7093-4LV62 can endure overloads, providing up to 1.8 times its rated current for short durations. This rectifier is built to operate at altitude limits of about 4000 meters, although performance may be derated in such high environments.

The cooling mechanism is facilitated through forced air, which is crucial for maintaining efficiency during operation, especially in high-load scenarios. With an approximate weight of 125 kg, this unit is substantial yet engineered for effective thermal management and longevity in demanding industrial settings.