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SKU: DS200SDCIG2ABA

GE Mark V DS200SDCIG2ABA SDCI Power Supply and Instrumentation Board

The GE DS200SDCIG2ABA is a high-performance SDCI Power Supply and Instrumentation Board for Mark V Speedtronic systems. It manages high-voltage SCR interfacing and DC power distribution, featuring six fused circuits with LED indicators and adjustable jumpers for precise turbine drive control and system diagnostics.

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Product Overview

The GE DS200SDCIG2ABA serves as the primary DC Power Supply and Instrumentation Interface (SDCI) within the Mark V Speedtronic turbine control system. This specialized circuit board provides the critical high-voltage interface required for Silicon Controlled Rectifier (SCR) drive operations. By integrating power distribution with sophisticated monitoring, the module ensures that the drive system receives stable voltage while simultaneously providing feedback on electrical performance to the primary control processors.

Technical Specifications

  • Manufacturer: General Electric (GE)
  • Product Line: Mark V Speedtronic Series
  • Board ID: DS200SDCIG2ABA (SDCI)
  • Function: DC Power Supply and High-Voltage SCR Interface
  • Protective Circuitry: Six onboard fuses (FU1-FU6) with individual LED status indicators
  • Configuration Hardware: Berg-type jumpers (JP1, JP2) and SW1 switch for site-specific testing
  • Net Weight: 0.56 kg
  • Module Dimensions: 43.1 cm x 25.3 cm x 3.8 cm
  • Mounting Style: Plastic snap-in standoff assembly behind the SDCC board
  • Interface Ports: Multi-pin ribbon cable connectors and pull-tab signal leads

Core Functionality and Technical Features

The DS200SDCIG2ABA performs a dual role by regulating DC power and capturing instrumentation data from high-voltage components. Consequently, this board acts as a protective barrier between the high-power SCR environment and the sensitive low-voltage control electronics.

Technical highlights include:

  • Visual Fault Isolation: Each of the six primary fuses correlates to a dedicated LED. If a fuse blows, the corresponding LED illuminates immediately, allowing technicians to pinpoint power failures without manual testing.
  • Customizable Logic Pathways: Users can adjust the operational parameters of the board through hardware jumpers. These settings facilitate both standard production environments and specialized diagnostic test modes.
  • Signal Conditioning: The SDCI board filters and scales high-voltage feedback signals, ensuring the DCS receives accurate data for current and voltage regulation.
  • Robust Mechanical Design: The board utilizes a secure vertical mounting system. This configuration reduces the footprint within the drive cabinet while maintaining sufficient airflow for thermal management.

Industrial Applications

The GE DS200SDCIG2ABA is a vital component for legacy infrastructure and heavy industrial drive systems:

  • Gas and Steam Turbine Control: Providing power for the SCR units that manage turbine fuel systems and auxiliary drives.
  • Heavy Industrial Drives: Supporting high-torque motor control in manufacturing and mining operations.
  • System Retrofitting: Maintaining the operational life of existing Mark V control panels in power plants.
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