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DATA SHEET
BASLER DECS200N-C1.pdf
Core Functions and Features
Control and Regulation
- Multi-mode Control: Supports Automatic Voltage Regulation (AVR), Field Current Regulation (FCR, manual mode), Reactive Power (Var) Control, and Power Factor (PF) Control. Automatic tracking between modes enables disturbance-free switching.
- High-precision Regulation: Voltage regulation accuracy of ±0.25% in AVR mode, current regulation accuracy of ±1.0% in FCR mode, ±2.0% in Var mode, and ±0.02 pu in power factor mode, ensuring stable operation of the generator.
- Negative Forcing Characteristic: Equipped with positive and negative forcing voltage output capability, improving load transient response speed and reducing voltage fluctuations.
- Parallel Compensation: Supports reactive droop or cross-current compensation, compatible with 1A/5A current transformers, eliminating the need for dedicated CTs and reducing installation costs.
Protection and Limitation
- Comprehensive Protection: Includes protection functions such as generator overvoltage, undervoltage, excitation overvoltage, excitation overcurrent, loss of excitation, and excitation diode monitoring (EDM), with customizable thresholds and delays.
- Intelligent Limiters:
- Overexcitation Limiter (OEL): Supports online/offline modes, with high/medium/low current levels, and features time delay or inverse time characteristics (I²t).
- Underexcitation Limiter (UEL): Based on generator rated values, supports built-in curves or 5-point custom curves to prevent loss of synchronism.
- Stator Current Limiter (SCL): With high and low current levels to limit stator overheating.
- Low Frequency/V/Hz Limiter: Adjustable slope (0-3.0 pu) and corner frequency (45-65Hz) to adapt to prime mover characteristics.
Operation and Monitoring
- Convenient Configuration: Front-panel backlit LCD display + 6 buttons for local operation; remote configuration via Windows® software (including PID selection tool), supporting parameter backup and restoration.
- Data Recording:
- Sequence of Events Recording (SER): Stores 127 events (with timestamps), recording input/output statuses, alarms, etc.
- Waveform Recording: Stores 8 records, each capable of tracking 6 variables (such as generator voltage, current, etc.), with a maximum sampling rate of 600 points per record, supporting COMTRADE format.
- Remote Control: Supports contact input (raise/lower adjustment), analog signals (±10Vdc or 4-20mA), and RS-485 communication (Modbus™ protocol) for remote setpoint control.
Communication Interfaces
Technical Specifications
- Operating temperature: -40°C to +60°C (0°C to +60°C for high-frequency versions)
- Storage temperature: -40°C to +85°C
- Vibration resistance: 5-26Hz (1.2Gs), 27-52Hz (0.914mm double amplitude), 53-500Hz (5.0Gs)
- Dimensions: 228mm (width) × 202mm (depth) × 356mm (height)
- Weight: 6.35kg
Suitable for excitation control of synchronous generators. It stabilizes output voltage, reactive power, or power factor by regulating excitation current, and is widely used in industrial power generation requiring fast response, backup power supplies, and scenarios needing power system stabilizers.
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