Product Description
Basler DECS-250 Digital Excitation Control System
- Manufacturer: Basler Electric
- Model/Part Number: DECS-250
- Description: Digital Excitation Control System
Overview
- The Basler DECS-250 is a microprocessor-based digital excitation control system designed for precise regulation, control, and protection of brushless excited AC synchronous generators and motors. It offers high performance, flexibility, and reliability, making it suitable for power generation, industrial facilities, and renewable energy systems. The system ensures stable voltage, var, and power factor regulation with exceptional response to load transients.
Technical Specifications
| Specification | Details |
|---|---|
| Model | DECS-250 |
| Series | DECS Digital Excitation Control Systems |
| Type | Digital Excitation Control System |
| Control Power | 16–60 VDC (Style LXXXXXX) or 90–150 VDC, 82–132 VAC (Style CXXXXXX); Burden: 50 VA or 30 W |
| AC Operating Power | Single or Three Phase; 56–70 VAC (32 VDC output), 110–139 VAC (63 VDC output), 190–277 VAC (125 VDC output), 380–528 VAC (250 VDC output); Frequency: 50–420 Hz |
| Output Power | 15 ADC continuous; 32 VDC, 63 VDC, or 125 VDC full load |
| Generator/Bus Voltage Sensing | Single or Three Phase; 100/120, 200/240, 400/480, 600 VAC ±10%; Frequency: 50/60 Hz; Burden: <1 VA/phase |
| Generator Current Sensing | Single or Three Phase; 1 AAC or 5 AAC nominal; Burden: <5 VA (1 AAC), <10 VA (5 AAC) |
| Operating Temperature | -40°C to +70°C |
| Communication Protocols | USB, Modbus RS-485 RTU, J1939 CANbus, Ethernet (Modbus TCP), optional Profibus |
| Contact Inputs/Outputs | 16 programmable inputs, 12 programmable outputs |
| Certifications | CE, UL, VDE-AR-N 41101 component certified |
Additional Information
- Functionality: The DECS-250 features five excitation control modes (AVR, FCR, FVR, PF, var), true RMS sensing, and a 15 amp pulse width modulated (PWM) power stage for robust field forcing. It includes integrated generator protection (e.g., 27/59, 81O/U, 32R, 40Q), exciter diode monitoring, and optional power system stabilizer (PSS) for grid code compliance. The system supports auto-tuning via BESTCOMSPlus® software, simplifying setup with drag-and-drop programmable logic and real-time metering.