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The GE DS200EXPSG1A is a specialized circuit board known as a Bulk Power Supply Board. It is a key component of the legacy GE Speedtronic Mark V series of industrial control systems, which are primarily used in the power generation industry for controlling turbines.
Key Features and Function
- Bulk Power Supply: The primary function of this board is to provide a stable and reliable power source to other components within the Mark V system’s automated drive assemblies.
- Input Power Measurement: It is designed to provide signals for measuring both AC and DC input power, which is a crucial diagnostic and monitoring function for the control system.
- Current Limiting: The board includes a current-limiting feature that activates when the supply is energized by the station battery, which helps to protect the system from power surges and other voltage irregularities.
- Protection and Diagnostics: The board has built-in protection features, including three fuses, which safeguard the components from over-voltage and other abnormal voltage conditions. It also has a reset button and a single green LED for startup diagnostics and troubleshooting.
- Obsolete Status: As a component of the discontinued Mark V series, the DS200EXPSG1A is considered an obsolete part. It is no longer manufactured by GE and is typically sourced from new old stock, surplus vendors, or specialized repair and refurbishment companies.
- Robust Design: The board is often conformal coated to protect it from environmental factors like dust, moisture, and contaminants, making it suitable for use in harsh industrial environments.
