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Siemens SIMOREG 6RA7098-4DS22

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6RA7098-4DS22

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The 6RA7098-4DS22 is a microprocessor-controlled DC rectifier from the Siemens SIMOREG series. This rectifier features a B6C 6-pulse single-quadrant topology and operates on a 400 V, 3-phase AC supply.

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Technical specifications for 6RA7098-4DS22

ManufacturerSiemens
Product TypeMicroprocessor DC rectifier
Product LineSIMOREG
Part Number6RA7098-4DS22
TopologyB6C 6-pulse single-quadrant
AC Supply Voltage400 V, 3-phase
AC Input Current2,487 A nominal
DC Output Voltage~485 V DC
DC Output Current3,000 A continuous
Derated DC Current2,178 A (US rating)
Field Supply Voltage~325 V DC
Field Supply Current~85 A
Power Rating (nominal)~1,455 kW
Power Rating (derated)~1,056 kW
Power ElectronicsThyristor (SCR)
Control SystemDigital microprocessor
Feedback & I/OAnalog/digital + encoder input
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Siemens' 6RA7098-4DS22 functions as a microprocessor DC rectifier, featuring a B6C 6-pulse single-quadrant circuit topology. This module operates with an AC supply voltage of 400 volts in a three-phase configuration. It has a nominal input current of 2,487 A, ensuring significant energy transfer capability.

The rectifier is designed to provide a DC output voltage of around 485 volts and can maintain a steady output current of 3,000 A. In cases where the ratings are limited (particularly for US applications), the derated DC current is specified at 2,178 A, indicating adaptability to various operational requirements.

Field supply voltage is set at approximately 325 V DC with a field supply current of approximately 85 A. The nominal power rating reaches about 1,455 kW, while in derated conditions, this drops to about 1,056 kW. Underpinning the power electronics are thyristors (SCR), ensuring efficient operation and reliability.

The unit employs a digital microprocessor for its control system, allowing sophisticated processing and regulation. Moreover, it supports feedback and I/O operations through both analog and digital interfaces, inclusive of encoder input, which enhances its versatility in various applications.