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The GE DS3800DLIB is a Load Inverter Daughter Card used in the GE Speedtronic Mark IV series of turbine and generator control systems. As a “daughter board,” it’s designed to plug into a larger, main circuit board, likely the NLTB (Network Load & Torque Board), to extend its functionality.
Function and Purpose
The primary purpose of the DS3800DLIB is to provide the necessary circuitry for controlling a load inverter. In turbine control systems, inverters are often used to convert DC power into AC power to operate various devices or to feed power back into the grid. The board’s key roles include:
- Inverter Control: It provides the control signals and logic to manage the operation of a load inverter. This involves regulating the output voltage and frequency of the inverter to ensure stable and efficient performance.
- Driver Module: The DS3800DLIB is specifically referred to as a Relay Driver Module in some documentation. This suggests it is a key component for controlling the switching of relays or other power-switching devices within the inverter circuit.
- Signal Processing: The board takes commands from the main control processor and translates them into the precise signals required to drive the inverter’s power electronics.
- System Integration: As a daughter board, it provides an efficient way to add specialized functionality to a larger, more general-purpose main board without having to redesign the entire control system.
Technical and Design Features
The DS3800DLIB is a legacy industrial control board, reflecting the technology of the GE Mark IV series.
- Legacy Part: The “DS3800” prefix indicates that it is a legacy GE industrial part from a series that is no longer in production by the manufacturer. These boards are typically sourced from surplus, repair, and refurbishment channels for the maintenance of older turbine control systems.
- Daughter Board: Its “daughter board” designation means it is a smaller, auxiliary card that connects to a larger main board, typically through a set of pin headers. This modular design allows for flexible system configurations.
- Industrial Grade: Like other GE industrial control components, this board is designed for a harsh industrial environment, with a robust build quality to withstand vibration, electrical noise, and temperature fluctuations.
- Physical Interface: It connects to the main board and provides terminals or connectors for external power and signal connections.
Applications and Importance
The DS3800DLIB is a fundamental component in legacy GE turbine control systems. Its importance lies in the fact that it provides the critical link between the digital control system and the physical hardware of the load inverter. Without this card, the control system would be unable to properly regulate the load inverter’s output, potentially leading to instability or a system shutdown.
