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Woodward DECS-100-B15
Product Overview
A high-precision digital automatic voltage regulator (AVR) designed for synchronous generators. It provides fast, accurate excitation control to maintain stable generator output voltage under varying load conditions. The DECS-100-B15 integrates advanced control algorithms, comprehensive protection, and communication capabilities into a compact, panel-mountable unit, suitable for critical power generation applications.
Detailed content
Technical Specifications
- Sensing Voltage Input: 100/120, 200/240, 400/480 VAC (single/three-phase)
- Current Input: 1 A or 5 A CT secondary (selectable)
- Field Output: 0–63 VDC, 10 A continuous (for generator excitation)
- Regulation Accuracy: ±0.25% from no load to full load
- Response Time: <1 electrical cycle to full limit
- Communication: Modbus RTU/TCP, CANopen (optional)
- Operating Temperature: -25 °C to +70 °C
- Dimensions: 280 mm × 240 mm × 85 mm
- Weight: Approximately 3.5 kg
Functional Characteristics
- Precise PID voltage control with adjustable gain and stability parameters
- Built-in over-excitation, under-excitation, V/Hz, and reverse power protection
- VAR/Power Factor (PF) control mode for reactive power management
- Automatic voltage matching for seamless generator paralleling
- Real-time data logging and fault event recording (hundreds of events)
- High-resolution LCD display for local monitoring and parameter adjustment
Application Scenarios
Industrial standby generators, utility power plants, marine vessel power systems, data center backup power, and combined heat and power (CHP) units.
