Marathon AVR DVR2000E

.The DVR2000E is an electronic, solid-state,  microprocessor-based control device.  The DVR2000E 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).

Features and capabilities.

•  Four control modes: automatic voltage regulation (AVR), manual or field current regulation (FCR), power factor (PF) regulation, and reactive power (VAR) regulation.

•  Programmable stability settings.

•  Soft start control with an adjustable time setting in AVR control mode.

•  Overexcitation (OEL) limiting 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 field 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 and 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.