Dynamic Excitation System

Technicial Specifications

Output Current Range : 25 Adc
Project based system design for higher levels
Proven design for hydro and thermal power plants
Custom, unique and fully compatible design for plants at each power level
Compatible with Brushless, AC or DC type excitation systems
AC & DC dual excitation source input
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 Excitation System - uninterrupted transfer
Redundant power supplies
Maintenance opportunity on an operating excitation system (isolated standby channel)
Other Features :
IP54 protection level enclosures
Rotor temperature calculation and protection
Rotor Earth Fault protection

Analyses and calculation of excitation system requirements
Revision of Excitation system design and project (acc. to plant)
Manufacturing and site installation of excitation system
Unique changes on the excitation system software (acc. to the plant)
Test and commissioning of the excitation system
Spec calculation, procurement and site installation of the excitation transformer
2 years Warranty period
Software and documentation support
System monitoring and support with remote connection