5-10 BESTCOMS Software DECS-200
Reactive Power Control, var Min.
Sets the minimum var setpoint, expressed as a percentage of the rated
generator kVA. A setting of –100 to +100% may be entered in 1% increments.
Reactive Power Control, var Max.
Sets the maximum var setpoint, expressed as a percentage of the
rated generator kVA. A setting of –100 to +100% may be entered in 1% increments.
Reactive Power Control, Traverse Rate.
Determines the time required to adjust the var setpoint from the
minimum value to the maximum value of the adjustment range. A setting of 10 to 200 seconds may be
entered in 1 second increments.
Reactive Power Control, Preposition Setpoint.
Defines the pre-position setpoint for var mode. This value
replaces the var setpoint value if pre-position is selected and the var Pre-Position mode is Maintain. The
setting range is identical to the var Setpoint setting range.
Reactive Power Control, Preposition Mode.
Determines whether or not the DECS-200 will respond to
further setpoint change commands once the operating var setpoint is driven to the pre-position value. If
Maintain mode is selected, further setpoint changes are ignored. If Release mode is selected, subsequent
setpoint changes are possible by using Raise and Lower commands.
Reactive Power Control, Var/PF Fine Volt Band.
Sets the upper and lower boundaries of voltage
correction when operating in var or PF mode.
Power Factor Control, PF Setpoint.
Sets the generator operating power factor. The range of this setting is
determined by the settings of the PF (Leading) and PF (Lagging) fields.
Power Factor Control, PF (Leading).
Sets the limit for leading power factor. A setting of –1 to –0.5 may be
entered in 0.005 increments.
Power Factor Control, PF (Lagging).
Sets the limit for lagging power factor. A setting of 0.5 to 1 may be
entered in 0.005 increments.
Power Factor Control, Traverse Rate (sec).
Determines the time required to adjust the power factor
setpoint from the minimum value to the maximum value of the adjustment range. A setting of 10 to 200
seconds may be entered in 1 second increments.
Power Factor Control, Preposition Setpoint.
Defines the pre-position setpoint for Power Factor mode. This
value replaces the PF setpoint value if pre-position is selected and the PF Pre-Position mode is Maintain.
The setting range is identical to the PF Setpoint setting range.
Power Factor Control, Preposition Mode.
Determines whether or not the DECS-200 will respond to further
setpoint change commands once the operating PF setpoint is driven to the pre-position value. If Maintain
mode is selected, further setpoint changes are ignored. If Release mode is selected, subsequent setpoint
changes are possible by using Raise and Lower commands.
Startup
Startup tab settings are illustrated in Figure 5-14 and described in the following paragraphs.
Startup Control, Soft Start Level.
Sets the generator soft-start voltage offset used during startup. A setting
of 0 to 90% may be entered in 1% increments.
Startup Control, Soft Start Time.
Sets the soft-start time limit used during startup. A setting of 1 to 7,200
seconds may be entered in 1 second increments.
Underfrequency Setting, Corner Frequency.
Sets the generator corner frequency for generator under-
frequency protection. A setting of 15 to 90 Hz may be entered in 0.1 Hz increments.
Underfrequency Setting, Slope.
Sets the generator frequency slope for generator underfrequency
protection. A setting of 0 to 3 V/Hz may be entered in 0.01 V/Hz increments.
Voltage Matching, Band.
Configures the generator voltage matching band as a percentage of the
generator rated voltage. When the bus voltage falls outside this band, no voltage matching occurs. A
setting of 0 to 20% may be entered in 0.01% increments.
Voltage Matching, Gen to Bus PT Match Level.
Ensures accurate voltage matching by compensation for
the error between the generator and bus voltage sensing transformers. The Match Level is expressed as
the relationship of the generator voltage to the bus voltage (expressed as a percentage). A setting of 90
to 120% may be entered in 0.1% increments.
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