General description
The DVC 550 is a digital automatic voltage regulator, which
monitors and regulates the alternator output with rated field
current up to 7 A and voltage supply up to 277 V AC.
It is designed for alternators with SHUNT, AREP (auxiliary
winding) or PMG (permanent magnet) excitation types.
The DVC adjusts the excitation current in the exciter field
according to the desired alternator output.
The DVC 550 includes several protections and functions to keep
the alternator running in full safe operation.
The utility software, DEIF EasyReg Advanced, provides a visual
interface to configure values and parameters. The intuitive
interface makes it fast and easy to monitor and troubleshoot.
EasyReg can also be configured directly with the USB port
without external power supply.

Easy installation with CAN bus
A dedicated J1939 CAN bus connection provides efficient and
exclusive communication between the DVC and the controller.
This makes it possible to, for example, quickly and easily swap
between nominal voltage or frequency settings for a generator.
Avoid genset over-sizing
Use magnetisation boosting or inductive motor starting to limit
the stator current during start-up. This reduces the need to start
multiple gensets when connecting a heavy load, and reduces
genset over-sizing requirements to a minimum.
Protect the genset from humidity
Drying: Condensation on the windings can be removed using the
genset drying mode. During drying mode heat generated from a
controlled short circuit is used to evaporate condensation on the
windings. The genset cannot be connected to the busbar until it is
safe to do so.
Ventilation: Use the genset ventilation mode to prevent
condensation forming on the windings by removing built-up humid
air using the alternator fan. Power generation is postponed until
the humidity levels are safe.

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