Automatic voltage regulator DVR2000E for Marathon
Article number: DVR2000E
The Marathon DVR2000E voltage regulator is an electronic, solid state, microprocessor-based control unit. The automatic voltage regulator regulates the output voltage of a brushless AC generator by controlling the current into the generator's exciter field. The input power to the DVR2000E comes from a multi-pole, high frequency permanent magnet generator (PMG).
Marathon DVR2000E Voltage Regulator features and capabilities:
Four control modes:
Automatic voltage regulation (AVR)
Manual or Field Current Control (FCR)
Power Factor Regulation (PF)
Reactive power control (VAR)
Programmable stability settings
Soft start control with adjustable time setting in AVR control mode
Overexcitation Limitation (OEL) in AVR, VAR and PF control modes
Underfrequency regulation (volts/hertz).
Crowbar circuits protect the field
Overtemperature protection
Three-phase or single-phase generator voltage (RMS) sensing/regulation in AVR mode
Single-phase generator current sensing for measurement and control purposes
Field current and voltage sensing
Four contact sensing inputs for system interface
A common output relay for alarm indication and tripping functions
Six protection functions
Overvoltage shutdown
Generator overvoltage shutdown
DVR overtemperature shutdown
Loss of generator sensing shutdown
Limiting overexcitation
Crowbar shutdown
Generator parallel with reactive sink compensation and reactive differential compensation
Front panel human machine interface (HMI) indicates system and DVR2000E status and provides the ability to make setting changes on the front panel
Rear RS-232 communication port for personal computer communication with MARATHON-DVR2000E-COMS Windows-based software for quick, user-friendly setup and control
