DAVR-25 Excitation Controller (AVR)

Technicial Specifications

Output Current Range : 25 Adc
Compatible with Brushless, AC or DC type excitation systems
AC & DC dual excitation source input
Proven design for hydro and thermal power plants
MOSFET based DC/DC converter
Control System :
Field Current, Generator Voltage, Reactive Power and Power Factor Control Modes
Online and soft transfer between control modes
DSP based high speed main controller with cutting edge technology
Voltage accuracy 0.25 %
Wide operating frequency range (40 - 60 Hz)
Built - in limiter & protection functions
Soft - Start function
Relay or Opto-coupler isolated Digital I/Os
MODBUS RTU Plant Communication
Human Machine Interface (HMI) :
Capacitive touch screen based user interface (HMI)
System alarm and fault logging including start and end time
Power loss proof data logging capability
Online setting capability for system control, limiter and protection parameters via HMI
Redundant System Options :
Redundant system option available
Other Features :
Integrated aluminum heatsink and metal box
Fanless design