GE

1. Full Model & Model Breakdown

Full Model Name: GE IS200VAICH1DAB Mark VI VAIC Control Board

• GE: Brand (Former GE Energy, currently part of Emerson)
• IS200: Unified prefix for circuit boards used in GE Mark VI turbine control system
• VAIC: Voltage Analog Input Card
• H1: Hardware version code
• DAB: Final hardware revision suffix
• Mark VI: Dedicated control system platform for heavy-duty GE gas turbines and steam turbines
• Control Board: Control circuit board

IS200VAICH1DAB is the complete part number. It is a standard analog acquisition board for Mark VI systems and widely used as spare part for power plant turbine control systems.

2. Main Functions

1. Dedicated Voltage Analog Input Card (VAIC) designed for GE Mark VI turbine control system.
2. Acquires various DC voltage analog field signals and converts external analog signals into digital signals recognizable by main controllers.
3. Continuously monitors voltage signals transmitted from unit sensors and transmitters.
4. Equipped with built-in signal conditioning and filtering circuits to stabilize signal acquisition and suppress electromagnetic interference in industrial sites.
5. Supports open-circuit detection and range over-limit diagnosis. Fault alarms will be sent to the host system under abnormal conditions.
6. Communicates with Mark VI main controller boards via backplane bus and uploads real-time collected process data.
7. Enables continuous monitoring of unit process parameters and provides raw measurement data for speed regulation, load control and protection interlocks.

3. Applications

1. Matches control systems of GE Mark VI gas turbine and steam turbine generator units.
2. Mainly deployed in thermal power plants and combined-cycle power plants.
3. Collects voltage analog signals output by transmitters for pressure, temperature, vibration, liquid level and other measurements.
4. Participates in unit load regulation, operating condition monitoring, overspeed protection and equipment interlock logic calculation.
5. Commonly used as spare parts for maintenance and replacement of power plant control systems.
6. Ensures stable operation of analog measurement loops of turbine units and prevents unit alarms or unplanned shutdowns caused by abnormal signals.

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