GE IS200TSVOH2B
GE IS200TSVOH2B - Image 2

GE IS200TSVOH2B

Product Overview: The GE IS200TSVOH2B is a high-precision servo output board for the Mark VI system. It provides the control signals and feedback processing required to accurately position electro-hydraulic servo valves that regulate steam and fuel flow to the turbine.

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Category: SKU: GE IS200TSVOH2B

Description

GE IS200TSVOH2B Technical Specifications:

  • Output Type: Servo Valve Drive Current.
  • Feedback: LVDT (Linear Variable Differential Transformer) position feedback.
  • System: GE Mark VI Speedtronic.
  • Channels: Multiple independent servo channels.
  • Resolution: High-resolution DAC for precise valve positioning.

Functional Features:

  • Precision Control: Closed-loop control of servo valve position using feedback.
  • Current Drive: High-current output to drive electro-hydraulic servo valves.
  • Feedback Processing: Accurate signal conditioning and conversion.
  • Diagnostics: Servo current, LVDT feedback, and coil resistance monitoring.

Application Scenarios:

  • Steam turbine governor valve control.
  • Gas turbine fuel valve control.
  • Compressor inlet guide vane control.
  • Any application requiring precise hydraulic actuator positioning.

Performance Parameters:

  • Positioning Accuracy: High-precision closed-loop control.
  • Response Time: Fast servo response for precise turbine control.
  • Stability: Optimized control loops for stable valve operation.

Material Composition & Structural Characteristics:

  • PCB: Precision analog board with low-noise components.
  • Components: High-current drivers, precision DACs, and conditioners.
  • Connectors: Secure connections for servo valves and LVDTs.
  • Enclosure: Shielded housing to prevent EMI interference.

Working Principle: The board receives a position command from the core processor. It compares this command to the actual LVDT position feedback and generates a drive current to move the servo valve to the desired position. The closed-loop control continuously adjusts the current to minimize position error.

Installation Requirements:

  • Wiring: Use shielded cables for feedback to prevent noise.
  • Adjustment: Properly adjust LVDT null and stroke per manufacturer specifications.
  • Servo Valve: Ensure the servo valve is compatible with the board’s output characteristics.
  • Tuning: Perform servo loop tuning to optimize response and stability.

Usage Precautions:

  • Alignment: Improper LVDT alignment can cause valve instability or damage.
  • Current Limits: Do not exceed the servo valve’s current rating.
  • Hydraulic System: Ensure the hydraulic system is clean and properly pressurized.
  • Safety: Follow lockout/tagout procedures when working on servo valves.

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