OUR products:

Automatic voltage regulators mod. S2006
Automatic voltage regulators for Brusheless alternators for hydroelectric
thermoelectric and diesel power stations (500 KW -150 MW).

S2006 is the new model of digital controller manufactured by BELTRAME CSE.
It controls alternators excitation and its easy programming software makes it suitable for a wide range of alternators.
It also enables a big flexibility on parameters optimization.
FEATURES
Functions
•t Five control modes:
t ot Manual mode
t ot Automatic Voltage Regulation (AVR)
t ot Automatic Current Regulation (FCR)
t ot Power Factor Regulation (PF)
t ot Reactive power regulation (VAR)
•t In AVR and FCR modes the voltage regulation is made by “softstart” ramp
•t Wide range of regulations and “set points” for each functioning
mode
•t Protection for over excitation (OEL) and under excitation (UEL)
when working in AVR, VAR and PF modes
•t Compensation for under-frequency or limitation of the tension/
frequency ratio [V/Hz]
•t Parallel managing with Main or with other AVR S2006
•t Eight generator protection functions:
t ot Protection from excitation over-voltage
t ot Protection from excitation over-current
t ot Protection from generator over-voltage
t ot Protection from generator under-voltage
t ot Surveying timer
t ot Lack of sensing
t ot Excitation diodes controlling device (optional)
t ot Lack of field voltage
•t Generators parallel connection with “droop” reactive compensation and differential reactive compensation

and remote control to the regulating point
•t Eleven digital inputs for the interface with the PLC
•t Redundant AC/DC power supply
•t Power output up to a maximum of 25A in continuous duty and
positive ceiling voltage of 40
•t Ten exit relays for controlling the system or for warning

Inputs and Outputs
•t Single-phase or three-phase rms bus voltage sensing (60÷480V
ac/dc 40÷500Hz)
•t Single phase or three phases rms generator voltage sensing
100÷500V ac)
•t Single phase generator current (nominal 1A or 5A)
•t Analog inputs (±10 Vdc and 4÷20 mAdc) providing a proportional

APPLICATIONS
In the typical application described hereinafter, the AVR S2006 controls the excitation field of a synchronous generator. The front
control panel, the indicators and the serial communication ports
using the PC software, ease the on-site/remote use of the system.

HMI Interface
•t The HMI front panel includes control buttons and LED indicators
•t Five communication ports:
ot RS-232 port, for PC communication
ot CANBUS port for specific communication with a redundant AVR
S2006
ot RS-485 communication port
ot USB communication port
ot Ethernet communication port
Technical Features
Maximum output current in continuous duty:t25A
Maximum output current per 10 sec. :t
40A
Auxiliry input frequency range:tt
50Hz ÷ 500Hz
Alternator nominal frequency:tt
50Hz or 60Hz
Temperature range in duty:t
t
0°C ÷ +55°C
Temperature range in stock :tt
-20°C ÷ 80°C
Dimensions (mm): ttt
wide 300 mm,
tttttt
length 400 mm
tttttt
height 115 mm

Thirty years of cutting-edge technology and support in ENERGY MANAGEMENT