Product Name
ABB 3ADT218437R0002 UNITROL 6080 Excitation Driver Thyristor Trigger Board
Product Overview
3ADT218437R0002 is the core excitation drive module of ABB UNITROL 6080 static excitation system, serving as the thyristor bridge trigger control unit. It receives closed-loop regulation instructions from the main control unit, outputs high-precision synchronous trigger pulses to adjust the conduction angle of thyristors, dynamically controls the generator field current, stabilizes generator terminal voltage and reactive power, ensures safe grid-connected operation of synchronous generators. Widely used as spare replacement part for thermal power, hydropower, gas power plants and industrial captive power stations.
Core Functions
- High-precision three-phase thyristor pulse triggering, millisecond-level fast field current adjustment to restrain grid voltage fluctuation.
- Executes AVR, reactive power droop, PSS power system stabilization, over/under excitation limit closed-loop control strategies.
- Built-in fault diagnosis circuit for thyristor short-circuit, pulse loss, overcurrent, over-temperature protection with fault alarm & interlock function.
- Fully compatible with single/dual/triple redundant UNITROL 6080 system, supports seamless master-backup channel switch for high availability power plant operation.
Technical Specifications
- Compatible System: ABB UNITROL 6080 SES/AVR, AC 800PEC control platform
- Operating Power: 24 VDC
- Max Supported Field Current: 2000 ADC
- Operating Temperature: 0℃ ~ +60℃, IP20 protection
- Compliance Standard: IEC, IEEE, national grid grid connection codes
- Service Design Life: More than 30 years, passed full load aging, EMC & high-low temperature test
Application Fields
- Thermal, hydro, gas, biomass power generation plants generator excitation system maintenance & retrofit.
- Captive power plants for steel, chemical, mining, paper industry synchronous motor voltage regulation.
- Pumped storage power station and distributed energy power plant excitation control.
Product Advantages
- Original ABB standard spare part, plug-and-play replacement without program modification and wiring change.
- Ultra-fast dynamic response improves power system transient stability to meet strict grid codes.
- Robust EMC & wide-temperature hardware design for harsh industrial substation environments.
- Multiple built-in protection functions prevent generator damage caused by abnormal excitation faults.
- Flexible redundant architecture adapts to different power plant safety and reliability requirements.
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