GE IS200TVBAH2A

Product Introduction
The IS200TVBAH2A is a specialized interface board in the Mark VI system that manages servo valve control and position feedback for turbine actuators.

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Description

GE IS200TVBAH2A

Technical Specifications

  • Part Number: IS200TVBAH2A
  • Function: Servo Valve Interface
  • Outputs: Triplex servo current outputs
  • Inputs: LVDT position feedback

Functional Features

  • Servo Control: Provides precise current drive to hydraulic servo valves.
  • LVDT Excitation: Generates AC excitation for valve position sensors.
  • Feedback Processing: Converts LVDT signals to digital position values.

Application Scenarios
Steam and gas turbine valve actuation, hydraulic governor systems.

Performance Parameters

  • Current Output: High-precision servo current.
  • Resolution: High-resolution LVDT measurement.

Material Composition
Precision analog components, power amplifiers, and signal conditioning circuits.

Structural Characteristics
Robust board design with heavy-duty connectors for high-current paths.

Working Principle
The board receives position commands from the DSP, drives the servo valve, and reads the actual valve position via LVDT to close the control loop.

Installation Requirements

  • Connect LVDT cables with proper shielding.
  • Verify servo wiring polarity.
  • Calibrate valve stroke after installation.

Usage Precautions

  • Never short servo output terminals.
  • Verify LVDT wiring before applying excitation.
  • Perform valve calibration per manufacturer procedures.