Basler DECS-100-B15 – Digital Automatic Voltage Regulator (AVR)

The Basler DECS-100-B15 is a high-performance, microprocessor-based digital automatic voltage regulator designed for synchronous generators (up to approx. 5 MW). It delivers ultra-tight voltage control, supports multiple regulation modes, and is built for both fixed-speed and variable-speed generator systems. 
It features integrated paralleling functions (VAR/PF mode, voltage matching, droop compensation) and robust protection systems — making it ideal for industrial, commercial, and critical-power applications. 

Key Specifications

• Nominal Output: 63 V DC at 7 A DC continuous (PWM output)                            Regulation Accuracy: ±0.25% (with true RMS sensing)                                              

• Sensing Input: 100/120, 200/240, 400/480, 600 V AC offered (single or three phase) Paralleling Support: Built-in CT inputs (1 A or 5 A secondaries), droop and reactive differential compensation included 

• Key Features:

  • Multiple control modes: AVR (voltage regulation), FCR (field-current regulation/manual), VAR (reactive power regulation), PF (power factor regulation) 

  • Soft-start / voltage build-up from low residual voltages 

  • Overexcitation and underexcitation limiting, loss of sensing transfer to manual mode 

  • PC configuration/monitoring via RS-232 (or RS-485), software support (BESTCOMS)