Description
3BHB045647R0003
Product Name: ABB 3BHB045647R0003 Excitation Thyristor Module
Brand: ABB
Series: ABB excitation system power semiconductor module, compatible with UNITOL series static excitation system and ACS6000 high-voltage frequency converter
Product type: High power thyristor (SCR/Thyristor) power semiconductor module, used for generator excitation control
Core function: As the core power conversion component of the static excitation system, it is responsible for rectifying the AC power supply into controllable DC excitation current, which is supplied to the excitation windings of synchronous generators and synchronous motors. By precisely adjusting the conduction angle of the thyristor, stable control of the generator terminal voltage, reactive power, and power factor can be achieved. At the same time, it has the ability of rapid demagnetization protection, which can quickly cut off the excitation current in case of internal faults in the generator, ensuring equipment safety
3BHB045647R0003 ABB excitation thyristor module
Technical features:
Adopting high reliability thyristor chips and supporting gate control mode triggered by positive and negative pulses
Integrated overcurrent protection, overvoltage protection, undervoltage protection, and thermal protection functions
The maximum switching frequency can reach 50kHz, with a short-term overload capacity of 1.5 times the rated current (lasting for about 1 minute)
The module contains Rs and Cs absorption circuits (Snuber circuits) internally, which are connected in parallel between the anode and cathode to suppress commutation overvoltage
Industrial grade compact design, supporting natural cooling or air cooling, suitable for harsh industrial environments such as high dust and large temperature differences
Continuous 24/7 operation design, with long-term stable working ability under high electrical stress
Key electrical parameters:
Rated voltage: up to 1400V (some application scenarios)
Rated current: up to 47A (specific configuration varies depending on application)
Input voltage adaptation: 380V -480V AC
Output frequency range: 0-500Hz
Working temperature range: -10 ° C to+50 ° C (some versions indicate -40 ° C to+125 ° C)
Storage temperature range: -25 ° C to+60 ° C
Protection level: IP20
Physical parameters:
Installation method: Panel or system rack installation
Size: approximately 100mm x 60mm x 40mm (compact design)
Weight: Approximately 0.4kg
Heat dissipation method: natural heat dissipation or air cooling
Typical application scenarios:
Thermal/hydroelectric power plants: synchronous generator excitation regulation, voltage stability control
Industrial Drive: Excitation Control of Large Synchronous Motors
Metallurgy/chemical industry: excitation power supply for large motors such as rolling mills and compressors
Wind power generation: excitation converter for doubly fed asynchronous generator
Ship propulsion system: excitation control of ship generator
Rail Transit: Power Quality Control of Traction Power Supply System
Related models in the same series:
3BHB045647R0001: Same series thyristor module, slightly different configuration
3BHB045647R0002: Same series but different specification versions
UNITROL 5000/UNITROL 6000 X-Power: The excitation system platform that this module is compatible with
UNS0881A-P: UNITOL 6000 series gate driver interface board, used in conjunction with this thyristor module
KUC755AE105 (3BHB005243R0105): ACS6000 driver power board, supplying power to the excitation circuit
