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The Siemens 6RA7087-6GS22, part of the SIMOREG series, is a robust DC static converter designed for various industrial applications. Utilizing a single-quadrant rectifier, this unit manages significant power requirements efficiently.
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| Manufacturer | Siemens |
|---|---|
| Product Type | DC Static Converter |
| Product Line | SIMOREG |
| Part Number | 6RA7087-6GS22 |
| Operating Mode | Single-quadrant rectifier |
| AC Input Connection | B6C three-phase |
| Nominal AC Input Voltage | 575 V (3-phase) |
| Max AC Input Current | 663 A controllable |
| Rectifier Module | D690 series, MRE-GEEF6S22 |
| DC Output Voltage | 690 V DC nominal |
| DC Output Current | 800 A continuous |
| Field Input Voltage | 460 V AC |
| Field Output Voltage | 375 V DC |
| Field Current Capacity | 30 A |
| Continuous DC Power | ~552 kW (690 V × 800 A) |
| Cooling | Forced-air or self-cooled options |
| Overload Capacity | 150% current for 1 minute |
| Regional DC Current Rating | 578 A (US rating) |
The 6RA7087-6GS22 from Siemens is a DC static converter within the SIMOREG series, engineered for high-performance rectification. This unit operates in single-quadrant mode, facilitating efficient power control for industrial systems. It connects through a B6C three-phase AC input at a nominal voltage of 575 V. The unit's maximum controllable input current reaches 663 A, providing the capacity to handle considerable power loads.
This converter features a D690 series rectifier module (MRE-GEEF6S22) that allows the generation of a DC output voltage of 690 V, capable of producing a continuous output current of 800 A. In terms of field operations, it has a field input voltage of 460 V AC and supplies a field output voltage of 375 V DC, with a capacity to maintain a field current of 30 A.
The continuous DC power output is approximately 552 kW, calculated as follows: 690 V multiplied by 800 A. For thermal management, the device offers both forced-air cooling and self-cooled options, ensuring reliability across a range of environmental conditions.
Furthermore, the overload capacity of the converter can sustain 150% of the current for one minute, accommodating transient conditions without impacting functionality. For the US market, the regional DC current rating is noted at 578 A, confirming its alignment with local electrical standards.