Basler DECS-200-2L
Basler DECS-200-2L - Image 2

Basler DECS-200-2L

Product Introduction: DECS-200-2L belongs to Basler DECS-200 digital excitation controller family. It adopts digital microprocessor control for synchronous generator excitation. Compared with 2C version, this variant is optimized for low power field excitation applications, with tailored field output rating for smaller generators. It supports island operation and generator parallel operation.

Request Quote
Category:

Description

Basler DECS-200-2L

Technical Specifications:

  • Sensing: Single/three-phase true RMS voltage and current sensing, up to 600V AC direct input
  • Regulation Accuracy: 0.25% for automatic voltage regulation
  • Control Power Input: 120/240 VAC or 24/48/125 VDC dual input
  • Field Output: PWM power stage, rated 7.5A DC continuous
  • Communication: RS-232 for BESTCOMS software configuration
  • Operating Temperature: -20℃ ~ +65℃
  • Storage Temperature: -40℃ ~ +85℃
  • Humidity: 5%~95% non-condensing

Function Features:

  • AVR, field current regulation, VAR and power factor control modes
  • Built-in V/Hz limiter, overexcitation and underexcitation limit functions
  • Cross current droop and line drop compensation for parallel generator operation
  • Soft voltage build-up, bumpless transfer between control modes
  • Event sequence recording and waveform oscillography capture
  • Front panel HMI for local parameter viewing and adjustment
  • Adjustable PID stability parameters for different generator characteristics

Application Scenarios:

  • Small and medium synchronous generators
  • Isolated island power supply systems
  • Biogas and small gas gensets
  • Retrofit of excitation systems for smaller power station units

Material Composition:

  • Housing: Die-cast aluminum alloy with powder coating
  • PCB: FR4 multilayer fiberglass circuit board, lead-free solder
  • Core chip: Industrial microcontroller and high precision ADC chips
  • Power devices: Power MOSFET and fast recovery rectifier diodes
  • Terminals: Tin plated copper alloy screw terminals

Structural Features:

  • Panel mounted metal enclosure with IP20 front panel protection
  • Front panel with LCD screen, operation buttons and status LED indicators
  • Independent terminal blocks for sensing, power, field output and communication
  • Standard cabinet cutout size for convenient installation

Working Principle: The unit samples generator voltage and current signals continuously. The microprocessor compares measured voltage against target setpoint and calculates control output through PID algorithm. PWM signal controls power stage to adjust exciter field current, stabilizing generator terminal voltage. All protection limiters are implemented by software logic. It supports local panel operation and remote computer configuration via serial port.

Installation Requirements:

  • Install inside control cabinet, stay away from heat sources and large contactors
  • Keep proper ventilation space around the controller
  • Use shielded twisted pair for voltage and current sensing lines
  • Separate signal wiring and high-current power wiring
  • Strictly follow equipment grounding requirements

Usage Notes:

  • Configure generator parameters in software before startup
  • Check field current rating matching with generator exciter
  • Prevent overvoltage applied to sensing input
  • Keep cabinet clean to avoid dust contamination
  • Save parameter backup file after commissioning

Related products