ABB UNITROL 6000 3BHL000519P0001 Valve Control Optical Fiber Drive Interface Board

ABB 3BHL000519P0001 Valve-Controllable Fiber Drive Interface Board
I. Basic Information
Material Number: 3BHL000519P0001
Product Series: 3BHL Converter Valve / UNITROL Excitation System Fiber Signal Board Family
Supporting System: ABB UNITROL 6000 Large-Scale Synchronous Generator Excitation System, used in conjunction with PPC907BE, UFC921A, 3BHL000517P0002
Function Position: Multi-channel Fiber Pulse Output Board, specifically for driving thyristors / IGCT Power Rectification Units, achieving complete electrical isolation between high and low voltages
II. Core Functions
Multiple ST Fiber Trigger Channels
Receive modulation electrical signals issued by the main controller, convert them into optical pulses and send them to the gate terminals of the power unit thyristors; simultaneously receive fault and conducting status optical signals from the power unit.
Independent Channel Diagnosis
Real-time monitoring of fiber breakage, optical module attenuation, and abnormal optical power; fault signals are uploaded to UFC921A interface board and the excitation CPU, triggering system alarms and pulse blocking.
Strong Electromagnetic Isolation
The optical medium completely isolates the low-voltage control circuit from the high-voltage power circuit, resisting the strong harmonics and electromagnetic interference of the power station excitation cabinet and converter station.
Hardware Fast Protection Logic
In case of power side short circuit, overcurrent, or overtemperature, the hardware cuts off all trigger pulses without delay to prevent power devices from breaking down.
Backplane Bus Interchange
Through the parallel bus inside the rack and UFC921A1101 communication, trigger timing, channel fault recording data are synchronized transmitted.

Hardware Specifications
Power Supply: Rack backplane DC24V
Optical Interface: Standard ST Multimode Optical Interface
Installation: Standard slot-type rack installation, supports hot swapping
Operating Temperature Range: 0℃ ~ +60℃, cabinet IP20 protection
Power Consumption: Approximately 4W

Differences in Series Models (Not Interchangeable)
3BHL000519P0001: Standard channel configuration, standard for large and medium-sized steam/water turbine generator excitation
3BHL000519P0002: Extended multi-channel version, dedicated for large-capacity parallel power unit units
3BHL000517P0002: Another fiber board, channel quantity, driving sequence and this model are incompatible

 Complete Excitation System Complementary Assembly
Excitation Main Control CPU: 3BHE024577R1101 PPC907BE1101
Power Collection Interface Board: 3BHE024855R1101 UFC921A1101
Fiber Trigger Drive Board: 3BHL000519P0001
Power Rectification Unit, Excitation Transformer, Synchronization Device
Upper-level Monitoring: ABB System 800xA DCS

Typical Application Scenarios
UNITROL 6000 Excitation Cabinet for Large Thermal Power Steam Turbine Generators
Excitation Control System for Large Medium-sized Hydro Turbine Generators
Excitation Regulation for Gas Turbines, Self-Provided Power Plants Synchronous Generators
Large Power Synchronous Generators for Chemical and Steel Plants’ Self-Provided Power Stations