72
9440300990 Rev J
Metering
DECS-250
Figure 61. Bus Primary-Values Metering
Field
BESTCOMSPlus Navigation Path:
Metering Explorer, Field
HMI Navigation Path:
Metering Explorer, DECS Output
Metered field parameters include the field voltage (Vfd), current (Ifd), and exciter diode ripple. The exciter
diode ripple is reported by the exciter diode monitor (EDM) and is reported as a percentage of 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 62 illustrates the field primary-values metering screen.
Figure 62. Field Primary-Values Metering
PSS
BESTCOMSPlus Navigation Path:
Metering Explorer, PSS (Power System Stabilizer)
HMI Navigation Path:
Metering Explorer, PSS
Values metered by the power system stabilizer function display positive sequence voltage and current,
negative sequence voltage and current, terminal frequency deviation, compensated frequency deviation,
and the per-unit PSS output level. The PSS function on/off status is also reported. Primary- and per-unit
values are available. Figure 63 illustrates the PSS primary-values metering screen.
Содержание DECS-250
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Страница 6: ...iv 9440300990 Rev J Revision History DECS 250 ...
Страница 16: ...xiv 9440300990 Rev J Contents DECS 250 ...
Страница 20: ...4 9440300990 Rev J Introduction DECS 250 ...
Страница 28: ...12 9440300990 Rev J Power Stage DECS 250 ...
Страница 32: ...16 9440300990 Rev J Voltage and Current Sensing DECS 250 ...
Страница 40: ...24 9440300990 Rev J Synchronizer DECS 250 ...
Страница 52: ...36 9440300990 Rev J Auxiliary Control DECS 250 ...
Страница 56: ...40 9440300990 Rev J Contact Inputs and Outputs DECS 250 ...
Страница 84: ...68 9440300990 Rev J Limiters DECS 250 ...
Страница 108: ...92 9440300990 Rev J Power System Stabilizer DECS 250 Figure 85 PSS Function Blocks and Software Switches ...
Страница 114: ...98 9440300990 Rev J Power System Stabilizer DECS 250 Figure 96 PSS Parameter Settings ...
Страница 124: ...108 9440300990 Rev J Stability Tuning DECS 250 ...
Страница 126: ...110 9440300990 Rev J Mounting DECS 250 Figure 103 Overall and Projection Mounting Dimensions ...
Страница 127: ...9440300990 Rev J 111 DECS 250 Mounting Figure 104 DECS 250 Escutcheon Plate Dimensions ...
Страница 128: ...112 9440300990 Rev J Mounting DECS 250 Figure 105 Panel Cutting and Drilling Dimensions for DECS 250 Panel Mounting ...
Страница 198: ...182 9440300990 Rev J Timekeeping DECS 250 ...
Страница 210: ...194 9440300990 Rev J CAN Communication DECS 250 ...
Страница 304: ...288 9440300990 Rev J Maintenance DECS 250 ...
Страница 316: ...300 9440300990 Rev J Specifications DECS 250 ...
Страница 334: ...318 9440300990 Rev J Analog Expansion Module DECS 250 ...
Страница 341: ...9440300990 Rev J 325 DECS 250 Contact Expansion Module Figure 188 CEM 2020 Input Contact and Output Contact Terminals ...
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