Woodward DECS-100-B15 AVR Automatic Voltage Regulator

Overview

The DECS-100-B15 is a digital automatic voltage regulator (AVR) with a microprocessor core. It precisely regulates voltage for brushless excited synchronous generators up to 5 MW. The device supports VAR and power factor (PF) control to optimize generator performance. Additionally, it includes robust protection functions, making it ideal for distributed generation, cogeneration, and utility-parallel use.

Technical Specifications

• Model: DECS-100-B15

• Voltage Regulation Accuracy: ±0.25% from no load to full load

• Power Supply Input: 88–250 VAC, single- or three-phase, 50–400 Hz

• Sensing Input Voltage: 100/120, 200/240, 400/480, 600 VAC (single- or three-phase)

• Current Input: 5 A CT secondary (B15 variant)

• DC Output:

• 63 VDC at 7.0 A continuous

• 135 VDC at 15 A for 10 seconds

• Control Modes: AVR, FCR (manual), VAR, PF

• Protection Functions: Overvoltage, undervoltage, overexcitation, underexcitation, loss of sensing

• Communication Interface: RS-232 with BESTCOMS™ software support

• Alarm Output: Dry contact, 120/240 VAC, 7 A continuous

• Operating Temperature: –40°C to +70°C

• Storage Temperature: –40°C to +80°C

• Vibration Resistance: Up to 5.0 G (53–500 Hz)

• Shock Resistance: 20 G

• Enclosure Rating: IP20 (module only)

• Dimensions: 5.34" W × 10.82" H × 2.84" D (135.6 × 274.8 × 72.1 mm)

• Weight: 2.42 lbs