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Siemens SIMOREG 6RA7081-6GV62

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6RA7081-6GV62

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The Siemens 6RA7081-6GV62 is a four-quadrant DC converter, designed for comprehensive control using microprocessor closed-loop technology. It operates in full 4-quadrant mode, allowing for regenerative braking and motoring capabilities.

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Technical specifications for 6RA7081-6GV62

ManufacturerSiemens
Product TypeFour-quadrant DC converter
Product LineSIMOREG
Part Number6RA7081-6GV62
ControlMicroprocessor closed-loop
Quadrant ModeFull 4-quadrant operation
CommunicationModular I/O, PROFIBUS, CAN, etc.
AC Supply3-phase, 575 V nominal
AC Input Current~332 A
Input TopologySix-pulse bridge (B6)
Armature DC Voltage600 V nominal
Armature DC Current400 A continuous
DC Power~240 kW
US/NA Rating600 V DC / 286 A
Field Output~375 V DC, 25 A
Field Input460 V AC
Rectifier ModuleD600/400 type
Size~625×268×318 mm; ~31 kg
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The Siemens 6RA7081-6GV62 is a four-quadrant DC converter, intended for diverse control applications. Utilizing a microprocessor-based closed-loop control system, it allows for efficient operation and precise feedback management. The unit is capable of functioning in full 4-quadrant mode, making it capable of both regenerative braking and motoring.

Designed for a three-phase supply, the converter operates at a nominal input voltage of 575 V and draws roughly 332 A of current. Its input topology is defined by a six-pulse bridge configuration (B6), ensuring reliable performance.

The converter is rated for an armature DC voltage of 600 V and can supply a continuous armature current of 400 A, supporting a substantial DC power output of about 240 kW. It also meets a US/NA rating of 600 V DC and 286 A. The field output is approximately 375 V DC, with a field current capacity of 25 A, while it requires an input of 460 V AC for field operations.

For robust integration, the Siemens 6RA7081-6GV62 features modular communication options, including modular I/O, PROFIBUS, and CAN protocols, enhancing connectivity with other system components. The rectifier module utilized is of the D600/400 type, ensuring efficient operation and conversion. The physical dimensions of the converter are approximately 625×268×318 mm, with a weight of around 31 kg, making it manageable for installation in various settings.