Technical Specifications and Board Design
This excitation board provides voltage regulation for GE Mark V generator systems. The GE DS200UCVAG1A DS200UCVAG1ABB controls the generator output voltage with high precision. You can install this board into any standard Mark V rack slot position. Its compact design handles demanding excitation control requirements reliably. The board weighs approximately 0.62 kilograms. Its dimensions measure 28 cm in height, 18 cm in width, and 2.5 cm in depth.
| Parameter | Specification |
|---|---|
| Brand | GE Energy / General Electric |
| Model | DS200UCVAG1A DS200UCVAG1ABB |
| Category | Excitation Board / Generator Voltage Regulator Card |
| Weight | 0.62 kg |
| Height | 28 cm |
| Length | 18 cm |
| Thickness | 2.5 cm |
| Output Control Signal | 0-10V DC or 4-20 mA (selectable) |
| Control Outputs | 2 channels (to exciter field) |
| Analog Inputs | 6 channels (0-10V DC or 4-20 mA) |
| Voltage Sensing Inputs | 3 channels (0-600V AC) |
| Current Sensing Inputs | 3 channels (0-5A AC) |
| Discrete Inputs | 8 channels (24V DC) |
| Discrete Outputs | 6 channels (24V DC, 0.25A) |
| Regulation Accuracy | ±0.05% of rated voltage |
| Response Time | 12 milliseconds typical |
| Isolation Voltage | 2500V DC between field and logic |
| Energy Storage | None (no battery) |
| Component Count | Single PCB with processor, ADCs, DACs, and optocouplers |
Voltage Regulation and Control Features
The board maintains generator terminal voltage within extremely tight tolerances. It uses an automatic voltage regulator (AVR) algorithm for stable control. The GE DS200UCVAG1A DS200UCVAG1ABB accepts remote voltage setpoint commands from the main controller. It also supports power factor and VAR control modes. The board includes over-excitation and under-excitation limiters for protection. A green LED indicates proper voltage regulation and control status. The board continuously adjusts the exciter field to match the reference voltage.
Protection and Monitoring Capabilities
The board monitors generator voltage, current, and frequency for abnormal conditions. It detects overvoltage, undervoltage, and loss of sensing immediately. The GE DS200UCVAG1A DS200UCVAG1ABB initiates a protective action within 8 milliseconds of a fault. It reports all diagnostic codes back to the turbine controller via the backplane. The board includes a volts-per-hertz limiter for generator startup protection. A red LED illuminates when any fault condition triggers the protection circuit. The board also monitors internal power supply voltages for proper operation.
Installation and Operational Guidelines
You must insert this board into a dedicated slot in the Mark V rack. The backplane supplies 5V and 24V DC power to the board automatically. The GE DS200UCVAG1A DS200UCVAG1ABB draws approximately 280 mA from the 5V supply rail. You must use shielded twisted-pair cables for all analog sensing connections. This practice prevents electrical noise from corrupting voltage measurements. The board requires no external battery for normal voltage regulation operation. You should verify all potential transformer connections match the board’s input rating.
Details
| Weight | 0.45 kg |
|---|---|
| Dimensions | 254 × 178 × 5 mm |
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