9492600990 11-3
DECS-150 Metering
Figure 11-4. Energy
Bus
BESTCOMSPlus Navigation Path: Metering Explorer, Bus
Metered bus parameters include the voltage across phases A and B (Vab), phases B and C (Vbc),
phases A and C (Vca), and the average bus voltage. The frequency of the bus voltage is also metered.
Primary- and per-unit values are available. Figure 11-5 illustrates the bus primary-values metering screen.
Figure 11-5. Bus Primary-Values Metering
Field
BESTCOMSPlus Navigation Path: Metering Explorer, Field
Metered field parameters include the field voltage (Vfd), current (Ifd), and exciter diode ripple current. The
exciter diode ripple is reported by the exciter diode monitor (EDM) as the induced ripple in the exciter field
current.
To achieve the desired level of excitation, the appropriate level of operating power input voltage must be
applied. This value is displayed as the power input voltage.
The level of excitation power supplied to the field is displayed as a percentage, with 0% being the
minimum and 100% being the maximum.
Primary- and per-unit values are available. Figure 11-6 illustrates the field primary-values metering
screen.
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