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9440300990 Rev J
Contents
DECS-250
Pre-Position Setpoints ............................................................................................................................. 27
Transient Boost ....................................................................................................................................... 28
Operation with Paralleled Generators ..................................................................................................... 28
Reactive Droop Compensation ............................................................................................................ 29
Cross-Current Compensation .............................................................................................................. 29
Network Load Sharing ......................................................................................................................... 29
Line Drop Compensation ..................................................................................................................... 30
Autotracking ............................................................................................................................................. 31
Internal Setpoint Tracking .................................................................................................................... 31
External Setpoint Tracking ................................................................................................................... 32
Setpoint Configure ................................................................................................................................... 32
Auxiliary Control ....................................................................................................................................... 33
Auxiliary Control Input Type .................................................................................................................... 33
Auxiliary Control Input Function .............................................................................................................. 33
PSS Test Input ..................................................................................................................................... 33
Limiter Scaling ..................................................................................................................................... 33
Setpoint Limits ..................................................................................................................................... 33
Auxiliary Control Gains ............................................................................................................................ 33
AVR Mode ............................................................................................................................................ 34
FCR Mode ............................................................................................................................................ 34
FVR Mode ............................................................................................................................................ 34
Var Mode ............................................................................................................................................. 34
Power Factor Mode.............................................................................................................................. 34
Summing Type ........................................................................................................................................ 34
Contact Inputs and Outputs ..................................................................................................................... 37
Contact Inputs ......................................................................................................................................... 37
Start and Stop Inputs ........................................................................................................................... 37
Programmable Inputs .......................................................................................................................... 37
Contact Outputs ....................................................................................................................................... 38
Watchdog Output ................................................................................................................................. 38
Programmable Outputs ........................................................................................................................ 38
Protection................................................................................................................................................... 41
Voltage Protection ................................................................................................................................... 41
Overexcitation (Volts per Hertz) ........................................................................................................... 41
Generator Undervoltage ...................................................................................................................... 43
Generator Overvoltage ........................................................................................................................ 44
Loss of Sensing ................................................................................................................................... 44
Frequency Protection .............................................................................................................................. 45
Overfrequency ..................................................................................................................................... 45
Underfrequency ................................................................................................................................... 46
Power Protection ..................................................................................................................................... 46
Reverse Power .................................................................................................................................... 46
Loss of Excitation ................................................................................................................................. 47
Field Protection ........................................................................................................................................ 48
Field Overvoltage ................................................................................................................................. 49
Field Overcurrent ................................................................................................................................. 49
Exciter Diode Monitor .......................................................................................................................... 50
Power Input Failure .............................................................................................................................. 52
Sync-Check Protection ............................................................................................................................ 53
Generator Frequency Less Than 10 Hertz .............................................................................................. 54
Configurable Protection ........................................................................................................................... 54
Limiters ...................................................................................................................................................... 57
Overexcitation Limiter .............................................................................................................................. 57
Summing Point OEL ............................................................................................................................ 57
Takeover OEL ...................................................................................................................................... 59
Underexcitation Limiter ............................................................................................................................ 61
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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