Basic Information | - Manufacturer: ABB. - Product Line: Part of ABB’s excitation control portfolio, compatible with large synchronous generators (typically 10MW and above). - Primary Purpose: Voltage regulation, reactive power control, and protection of generator excitation systems. |
Electrical Characteristics | - Operating Voltage: Typically 24V DC (control circuit) with compatibility for field voltage up to 500V DC (varies by generator rating). - Power Consumption: Low-power design to minimize energy loss in excitation loops. - Output Current: Configurable to match generator field requirements (adjustable via software). |
Control & Regulation | - Voltage Regulation Accuracy: ±0.2% of rated voltage (steady-state), ensuring stable grid integration. - Reactive Power Control: Supports both manual and automatic (VAR/PF) modes, enabling precise reactive power sharing in parallel generator setups. - Response Time: Fast transient response (<100ms) to voltage fluctuations, critical for grid stability during load changes. |
Protection Features | - Built-in safeguards: Overcurrent protection (field and excitation circuit), overvoltage/undervoltage protection, field winding overheating protection, and loss-of-field detection. - Fault Diagnostics: Real-time monitoring with error logging and alarm outputs (dry contacts or digital signals) for quick troubleshooting. |
Communication & Integration | - Interfaces: Supports industry-standard protocols (e.g., Modbus RTU/TCP, Profibus) for communication with SCADA, DCS, or generator control systems. - Compatibility: Integrates with ABB’s UNITROL® excitation systems and third-party generator management platforms. |
Environmental Ratings | - Operating Temperature: -10°C to +55°C (industrial grade). - Humidity: 5% to 95% (non-condensing), suitable for power plant environments. - Vibration Resistance: Compliant with IEC 60068-2-6 for mechanical durability. |