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The GE DS2020BRCAG Brake Control Assembly is a specialized electronic module that provides precise control over the dynamic braking functions in large industrial equipment, primarily as part of the General Electric Mark V Turbine Control System Series and their Drive Control Systems.
The module’s acronym, BRCAG (or a similar variant like BRCBG), stands for a Brake Control Assembly or Board.
⚙️ Primary Function and System Application
The DS2020BRCAG performs a critical safety and operational function by managing the process of decelerating and stopping high-inertia machinery (like a turbine or a large motor) quickly and smoothly.
- Dynamic Braking: Its main role is to regulate the current that activates the mechanical or electrical braking system (often by controlling brake solenoids). This process is necessary to safely dissipate the kinetic energy generated by the rotating equipment.
- System Integration: It is a component within the DS2020 family of boards and assemblies, designed to integrate seamlessly with the main control logic of the Mark V Speedtronic Turbine Control System.
- Safety Features: It includes features for overspeed protection, automatically engaging the brakes if the turbine speed exceeds safe limits, and provides thermal and electrical protection to prevent damage to the braking system.
🔌 Key Technical Specifications
The specifications can vary slightly across different revisions (e.g., DS2020BRCAG3 vs. DS2020BRCAG5), but the core functional characteristics are consistent:
| Specification | Typical Value (DS2020BRCAG3/5) |
| Product Series | GE Mark V (DS2020 Family) |
| Product Type | Brake Control Assembly Module |
| Maximum Amperage | Up to 15 Amps (controls the supply to the brake actuator) |
| Power Supply Voltage | Typically 28 VDC (for the control logic) |
| Mounting | DIN-rail mounting |
| Environment | Tolerates 1.0 G horizontal vibration (at 15-120 Hz) and 5-95% non-condensing humidity. |
| Status | The DS2020BRCAG is generally considered obsolete or discontinued by the manufacturer (GE), meaning parts are typically sourced as unused surplus or repaired/rebuilt units. |
The assembly typically includes an array of components like resistors, diodes, transistors, and integrated circuits mounted on a metal backplane to handle the high current and complex control logic required for industrial braking.
