Digital Voltage Regulator



Digital Excitation Control System (DECS-200) One DECS-200 Digital Excitation Control System can accommodate 32Vdc, 63Vdc, or 125Vdc applications up to 15Adc. This unique flexibility provides precision control of virtually any size generators. The DECS-200 also incorporates a pulse width modulated power stage, which improves system performances in non-linear load applications.
Features include: True RMS sensing, single or three phase 32Vdc, 63Vdc, and 125Vdc outputs at 15Adc 0.25% Voltage Regulation Accuracy Setup from front panel HMI or by PC with Windows® setup software included 20 standard stability selections plus a user customizable stability selection Paralleling compensation Underfrequency compensation or V/Hz Ratio Limiter Softstart buildup Field Current Regulation Mode (Manual Mode)

DECS-200 Digital Excitation Control System

Read about the
DECS-200 in action
in these
Application Notes.

Autotracking between operating modes standard (between DECS-200 units optional)
Remote setpoint control via:

Contact inputs
Proportional control via ±10Vdc or 4-20mA
Communications inputs RS-232 (ASCII) or RS-485 (Modbus™)

Minimum Excitation Limiter (Internally generated or customizable)
On and off-line Maximum Excitation Limiters
VAR and Power Factor Controllers
Voltage Matching
Seven generator protection features
Programmable output contacts
Front panel backlit LCD display and front panel mounted RS-232 and side RS-485 communications ports
Exciter Diode Monitoring (EDM)
Sequence of Event Recording (SER)
Oscillography
Modbus™ protocol for RS-485 input allows communications up to 4,000 feet away
<1% metering accuracy for 12 generator parameters

CSA certified, UL recognized, CE compliant
DNV Marine Type Approval (Det Norske Veritas). Click to download.

Download Bulletin SZM for more information or download the product manual.

The IDP-800 Interactive Display Panel provides remote control, metering, status and alarms for the DECS-200. The ICRM minimizes inrush currents on voltage regulators that incorporate Pulse Width Modulated (PWM) technology. Read more in Application Note RSC-ICRM.

Digital Excitation Control System (DECS-200)