Part Number:

• DVR2000E

  The Marathon DVR2000E voltage regulator is an electronic, solid state, microprocessor-based control device. The Automatic Voltage Regulator regulates the output voltage of a brushless, ac generator by controlling the current into the generator exciter field. Input power to the DVR2000E is 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 Regulation (FCR)
• Power Factor Regulation (PF)
• Reactive Power Regulation (VAR)

Programmable stability settings

• Soft start control with an adjustable time setting in AVR control mode
• Overexcitation limiting (OEL) in AVR, VAR and PF control modes
• Underfrequency (volts/hertz) regulation
• Crowbar circuitry protects the field
• Overtemperature protection
• Three-phase or single-phase generator voltage (RMS) sensing/regulation in AVR mode
• Single-phase generator current sensing for metering and regulation purposes
• Field current and voltage sensing
• Four contact sensing inputs for system interface
• One common output relay for alarm indication and trip functions
• Six protection functions
• Overexcitation shutdown
• Generator overvoltage shutdown
• DVR overtemperature shutdown
• Loss of generator sensing shutdown
• Overexcitation limiting
• Crowbar shutdown
• Generator paralleling with reactive droop compensation and reactive differential compensation
• Front-panel human-machine interface (HMI) indicates system and DVR2000E status and gives the ability to make setting changes at the front panel
• Rear RS-232 communication port for personal computer communication using MARATHON-DVR2000E-COMS Windows-based software for fast, user-friendly setup and control