5SHY3545L0020 3BHE014105R0001 Press-Pack Thyristor Module

High-Power Thyristor Module for HVDC Transmission Systems

Technical Specifications

Main Features and Advantages

Ultra-High Power Handling: The **ABB 5SHY3545L0020 3BHE014105R0001** delivers unmatched performance in HVDC applications with 5.5kV blocking voltage and 3.5kA RMS current capacity. Its press-pack design ensures uniform pressure distribution across the semiconductor surface, enabling superior thermal management and preventing hotspot formation during high-current operations.

Advanced Failure Mode Protection: Engineered with internal short-circuit capability, this thyristor module fails safely without external fuse protection. The hermetic ceramic-metal sealing prevents coolant leakage into electrical components, maintaining system integrity even under extreme operating conditions. This design significantly reduces the risk of catastrophic failure in mission-critical power transmission systems.

Precision Switching Performance: Featuring optimized gate structure and carrier lifetime control, the module achieves precise turn-on/turn-off characteristics with minimal switching losses. The low on-state voltage drop (1.25V at 3kA) translates to higher system efficiency, reducing energy losses by up to 15% compared to conventional thyristors in multi-megawatt converters.

Robust Mechanical Construction: The all-ceramic housing withstands extreme mechanical stress during short-circuit events. Gold-plated molybdenum electrodes ensure stable electrical contact throughout thermal cycling, while the integrated snubber circuit compatibility simplifies converter design. The module’s vibration-resistant construction meets IEC 60721-3-7 Class 7M3 standards for industrial environments.

Thermal Management Excellence: With direct liquid cooling capability, the **ABB 5SHY3545L0020 3BHE014105R0001** achieves power densities exceeding 100MW/m³ in compact converter valves. The symmetrical thermal path design enables balanced heat distribution, allowing continuous operation at maximum ratings without derating.

Application Areas

• High Voltage Direct Current (HVDC) transmission stations
• Static Var Compensators (SVC) for grid stability
• Industrial megawatt-scale drives for mining
• Renewable energy grid interconnection systems
• Railway traction power substations

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