Basler Electric BE2000E - Manual (Page 24)

16 9287500995 Rev B
BE2000E Operating Features
The following paragraphs describe the characteristics of each BE2000E operating feature.
Operating Modes
The BE2000E provides up to four modes of operation selectable through Windows
® communication
software. Automatic voltage regulation mode, Manual mode, Var mode, and Power Factor mode are
standard features.
Automatic Voltage Regulation Mode
In Automatic Voltage Regulation (AVR) mode, the BE2000E regulates rms generator output voltage. This
is accomplished by sensing generator output voltage and adjusting dc output excitation current to
maintain voltage at the regulation setpoint. The regulation setpoint is adjusted by the Raise and Lower
contact inputs, front panel switches, or through Windows communication software. The regulation point
may also be modified by the Droop function or the Underfrequency function under certain conditions.
Manual Mode
In Manual mode, also known as Field Current Regulation (FCR) mode, the BE2000E maintains dc
excitation current at a set level. The current-level setpoint is adjustable from 0 to 3 Adc by the Raise and
Lower contact inputs, front panel switches, or through Windows communication software.
Warning!
The Manual mode excitation level must be evaluated prior to enabling
this feature. If the level of excitation current is inappropriate for the
generator, severe damage to the generator may occur.
Var Control Mode
In Var Control mode, the BE2000E maintains generator vars (volt-amperes, reactive) at a set level when
paralleling with an infinite bus. The BE2000E calculates generator vars using the sensed generator output
voltage and current quantities and then adjusts the dc excitation current to maintain vars at the setpoint.
Var control is enabled and disabled through the front panel switches or Windows communication
software. When the software is turned on, var control is enabled or disabled through the var/Power Factor
Control (52J/K) contact input circuit. The var setpoint is adjustable from 100 percent absorb to 100
percent generate through the Raise and Lower contact inputs, front panel switches, or through Windows
software.
Power Factor Control Mode
In Power Factor Control mode, the BE2000E maintains generator power factor at a set level when
paralleling with an infinite bus. The BE2000E calculates generator power factor using the sensed
generator output voltage and current quantities and then adjusts the dc excitation current to maintain
power factor at the setpoint. Power factor control is enabled or disabled through the front panel switches
or Windows software. When the software is turned on, it is enabled or disabled through the var/Power
Factor Control (52J/K) contact input circuit. The power factor setpoint is adjustable between 0.6 lag and
0.6 lead through the Raise and Lower contact inputs, front panel switches or through Windows
communication software.
Reactive Droop Compensation
The BE2000E provides a reactive droop compensation feature to assist in the sharing of reactive load
during parallel generator operation. When this feature is enabled, the BE2000E calculates the reactive
portion of the generator load using the sensed generator output voltage and current quantities and then
modifies the voltage regulation setpoint accordingly. A unity power factor generator load results in almost
no change in generator output voltage. A lagging power factor generator load (inductive) results in a
Functional Description BE2000E