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DECS-100 BESTCOMS for Windows
®
OS
5-4
Figure 5-8. System Configuration Screen
System Settings
System settings are shown in Figure 5-8 and are described in the following paragraphs.
Sensing Voltage. This setting is used to configure the DECS-100 for either single-phase or three-phase
sensing voltage.
Generator Frequency. This setting is used to select a nominal system operating frequency of 50 hertz or 60
hertz.
Limiter Mode. Selecting OEL enables the DECS-100 Overexcitation Limiter and selecting None disables it.
Regulator Sensing Voltage (V). The nominal, ac generator voltage obtained from the generator sensing
transformer is entered in this setting field. Voltages within the ranges of 100 to 140 Vac, 200 to 280 Vac, or
400 to 560 Vac may be entered in 0.1 Vac increments. A setting of 600 Vac is also possible.
Regulator Sensing Current (A). This setting field is used to enter the nominal output of the current transformer
(CT) that supplies the DECS-100 with B-phase generator line current. A value of 1 A or 5 A may be entered.
Version Numbers. These two version numbers are read-only. They indicate the BESTCOMS software version
and the DECS-100 embedded software version. If a DECS-100 version number is not shown, then the PC
and BESTCOMS has not communicated with the DECS-100. The DECS-100 version number is indicated
only when communication between the DECS-100 and BESTCOMS occurs.
Generator PT Ratio. The ratio of the generator sensing transformer is entered in this setting field. This ratio
allows the voltage displayed through BESTCOMS to match the actual generator output voltage. A ratio of
1 to 120 may be entered in increments of 0.01.
Generator CT Ratio. The ratio of the generator B-phase current transformer is entered in this setting field.
This ratio allows the current displayed by the DECS-100 to match the actual B-phase generator output
current. A ratio of 1 to 1,000 may be entered in increments of 0.1.
Bus PT Ratio. This setting field is used to enter the bus potential sensing transformer ratio. This ratio allows
the bus voltage to be displayed through BESTCOMS. A ratio of 1 to 120 may be entered in increments of
0.01.
Содержание DECS-100
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