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GE DS200CVMAG1 | Mark V Generator Control & Voltage Monitor Board--KIMI
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Product Description


GE DS200CVMAG1 | Mark V Generator Control & Voltage Monitor Board (CVMA)
Generator Control & Cap/Fuse Voltage Monitoring for Critical Turbine Applications
1. Product Overview

The GE DS200CVMAG1 (CVMA - Cap/Fuse Voltage Monitor Assembly) is a core generator control and voltage monitoring board for the Mark V Speedtronic turbine control system, engineered to ensure safe and stable operation of gas/steam turbines and their associated generators. As a critical component in the Mark V DS200 series, it integrates precision voltage sensing circuitry, analog - to - digital conversion, and protective relay logic to monitor capacitor/fuse voltages, generator output parameters, and trigger alarm or shutdown actions when abnormal conditions are detected. The board features two 16 - pin connectors, one 2 - pin connector, and six test points for seamless integration with Mark V system backplanes and external monitoring tools. It operates on +5V DC power, with dedicated monitoring channels for generator voltage, current, and frequency, supporting 28V DC system logic and 125V DC trip solenoid actuation. Fully compliant with GE Mark V system specifications (Manual A00100), it provides real - time data to the main controller for coordinated turbine - generator control, making it an indispensable part of power generation facilities requiring high reliability and safety.


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Key Specifications
• Manufacturer: GE (Emerson)
• Model: DS200CVMAG1 (CVMA)
• Product Type: Generator Control & Cap/Fuse Voltage Monitor Board (Mark V DS200 Series)
• System Compatibility: GE Mark V Speedtronic Turbine Control System
• Core Function: Voltage monitoring of capacitor/fuse circuits, generator parameter monitoring, protective relay triggering
• Connectors: 2× 16 - pin signal connectors, 1× 2 - pin power connector, 6× test points
• Power Requirements: +5V DC (6A max), 28V DC system logic (18 - 32V DC range), 125V DC trip solenoid support
• Protective Channels: 12 dedicated relay channels for alarm/shutdown actuation
• PCB Coating: Standard conformal coating for harsh industrial environments
• Dimensions: 11 inches (279.4mm) width × 4 inches (101.6mm) height
• Operating Temperature: -30°C to +65°C (Industrial Grade)
• Certifications: CE, UL, GE Mark V System Compliance
2. Core Features
• Precision Voltage Monitoring: Accurate sensing of capacitor/fuse voltages via dedicated circuitry to detect over/under - voltage conditions.
• Integrated Protective Logic: Triggers alarms or 125V DC trip solenoid actuation when thresholds are exceeded to prevent equipment damage.
• Seamless Mark V Integration: Communicates with the main controller via backplane to enable coordinated turbine - generator control.
• Dedicated Test Points: 6 test points for on - site troubleshooting and calibration without system disassembly.
• Wide Voltage Compatibility: Supports 28V DC system logic (18 - 32V DC) for flexible power system integration.
• Conformal Coating: Standard PCB coating protects against dust, moisture, and chemical corrosion in industrial settings.

• Rugged Design: Engineered for -30°C to +65°C operating temperatures to withstand power plant environments.


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3. Typical Applications
• Gas Turbine Power Plants: Monitoring of generator voltage, current, and frequency for combined - cycle or simple - cycle turbines.
• Steam Turbine Facilities: Coordination of turbine speed control and generator output regulation in thermal power stations.
• Combined Heat & Power (CHP) Systems: Synchronized control of turbine - generator sets for efficient heat and electricity cogeneration.
• Industrial Power Generation: On - site turbine - generator control in refineries, chemical plants, and manufacturing complexes.

• Turbine Retrofit Projects: Replacement of legacy monitoring boards in Mark V system upgrades for extended service life.


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4. Installation & Maintenance
Installation: Mount the board in the Mark V DS200 series rack; connect 16 - pin connectors to the system backplane and external sensors, and the 2 - pin connector to the +5V/28V DC power supply. Verify test point connectivity; configure monitoring thresholds via Mark V control software and conduct a system - level test to ensure proper relay actuation.
Maintenance: Regularly check power supply voltages (+5V/28V DC) to ensure stable operation; inspect connector pins for corrosion or loose connections. Use test points to verify voltage readings against nominal values and update system software/firmware per GE recommendations. Keep the board clean to prevent dust accumulation that may affect heat dissipation.

Fault Diagnosis: Utilize Mark V diagnostic tools to check for voltage monitoring errors; test relay channels for proper trip solenoid actuation. Verify test point signals with a multimeter to isolate sensing or conversion circuit faults and check PCB for physical damage or component failure.


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Technical Document | GE DS200CVMAG1 | Mark V Generator Control & Voltage Monitor Board
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