The MVRL2100-4601-A liquid-cooled rectifier module adopts a liquid cooling design, which has significantly better heat dissipation efficiency than traditional air cooling. It is suitable for high power density scenarios (such as medium-voltage drive systems). It has a built-in dual six-pulse rectifier and can be independently connected to the AC input for flexible configuration. The pre-charge circuit charges the DC link capacitor through a current-limiting resistor to ensure safe startup. It is equipped with a thermistor and temperature controller to monitor the temperature in real time and provide over-temperature protection.

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　　MVRL2100-4601 Other Names:

　　Rectifier Component MVRL2100-4601

　　MVRL2100-4601 Liquid Cooling Module

　　Technical Architecture:

　　Core Function: Converts AC power to unsmoothed DC power, providing stable DC power to medium-voltage motors, drive equipment, and power systems. Supports 12-pulse rectification to reduce harmonic distortion.

　　Cooling Method: Employs a liquid cooling design, with significantly better heat dissipation efficiency than traditional air cooling, suitable for high power density scenarios (such as medium-voltage drive systems).

　　Electrical Performance: Maximum DC output voltage 1250 VDC, supports 12-pulse rectification (30° phase shift achieved through an external transformer), effectively reducing harmonic distortion (THD≤5%).

　　Structural Features: Built-in dual six-pulse rectifiers, independently connectable to AC input, offering flexible configuration; pre-charge circuit charges the DC link capacitor through a current-limiting resistor, ensuring safe startup; equipped with a thermistor and temperature controller for real-time temperature monitoring and over-temperature protection.

　　Design Features:

　　Dual Six-Pulse Rectifiers: Each module contains two three-phase six-pulse rectifiers, independently connectable to AC input, supporting flexible configuration.

　　12-Pulse Bridging Capability: Achieves 30° phase shift through an external transformer; combined with an inter-bridge transformer, it can be configured for 12-pulse rectification, significantly reducing harmonic distortion (compliant with IEEE 519 and other standards).

　　Liquid Cooling System: Employs a high-efficiency liquid cooling design, suitable for high power density scenarios, with significantly better heat dissipation efficiency than traditional air cooling.

　　Pre-charge Circuit: Built-in current-limiting resistor ensures safe charging of the DC link capacitor, preventing startup shock. Temperature Monitoring and Protection: Equipped with a thermistor and temperature controller to monitor module temperature in real time and provide over-temperature protection.

　　Technical Parameters

　　Maximum DC Output Voltage: 1250V DC.

　　Cooling Method: Liquid cooling (compatible with standard DELTA mounting frame).

　　Input/Output Configuration: Supports three-phase five-wire input; adjustable DC output voltage to adapt to different load requirements.

　　Efficiency and Reliability: AC-AC mode efficiency reaches 96%, ECO mode efficiency reaches 99%, and the mean time between failures (MTBF) is no less than 100,000 hours.

　　Compatibility and Expandability: Supports direct parallel operation of 4 UPS units without additional paralleling circuitry; battery management function supports two-stage charging (equalization charging/float charging), and allows online adjustment of the number of battery cells (32~46 cells) and charging current (0.5A steps).

　　Safety Features: Equipped with battery polarity detection and reverse connection protection, and Emergency Stop (STO) function, complying with safety standards such as IEC 60204 and ISO 13849-1 PLd.

　　Heat Dissipation and Protection:

　　Liquid Cooling Design: Utilizes liquid cooling for high heat dissipation efficiency, suitable for high power density applications (such as data centers and industrial drives).

　　Temperature Monitoring: Built-in thermistor and temperature controller monitor module temperature in real time, triggering over-temperature protection to ensure stable system operation.

　　Pre-charge Circuit: Built-in current-limiting resistor and safe charging DC-link capacitor to avoid inrush current during startup.

　　Key Application Scenarios:

　　Industrial Automation:

　　Provides stable DC power for medium-voltage motors, servo drives, and frequency converters, widely used in fans, pumps, machine tools, robots, and other applications.

　　Supports efficient operation of industrial frequency converters and servo systems, reducing energy consumption.

　　Power Systems:

　　Converts AC to DC in power transmission and distribution to meet the power supply needs of specific equipment (such as high-voltage DC transmission and energy storage systems). **Applications:** Renewable energy systems (wind and hydropower) improve power conversion efficiency.

　　Data Centers:

　　As a core component of liquid cooling systems, it supports the heat dissipation needs of high-power-density servers and storage devices.

　　Complies with energy-saving technology standards (such as the Recommended Energy-Saving Technology Products Catalog for China's Telecommunications Industry), helping data centers reduce PUE (Power Usage Effectiveness) and achieve energy conservation and emission reduction.

　　Rail Transit:

　　In high-speed rail and subway traction converter systems, it provides ultra-high voltage (3300V~6500V) and high current (800A~1500A) support, ensuring stable operation of the traction system.

　　Technological Advantages and Industry Value:

　　High-efficiency heat dissipation: Liquid cooling systems are more than 30% more efficient than air cooling, extending equipment life and reducing maintenance costs.

　　Low harmonic characteristics: 12-pulse rectification technology results in harmonic content far below IEC standards, reducing grid pollution and aligning with the trend of green energy development.

　　Modular Design: Compatible with standard DELTA mounting frames, supports parallel expansion, and adapts to different power levels (from tens of kW to MW).

　　Intelligent Protection: Integrates multiple safety mechanisms including overvoltage/undervoltage protection, short-circuit protection, and temperature monitoring to ensure safe system operation.

　　Summary: The MVRL2100-4601 liquid-cooled rectifier module is a high-performance power conversion device developed by GE Energy. With its advanced rectifier architecture, efficient heat dissipation design, multiple protection functions, and wide application adaptability, it has become a key support in industrial automation, power systems, renewable energy, and data centers, helping customers achieve efficient, stable, and energy-saving operation goals.

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