Basler Electric DECS-400 User Manual
Page 11
9369700990 Rev R
ix
Power System Stabilizer (PSS) ............................................................................................................. 162
Traverse Rates ...................................................................................................................................... 162
Setpoint .............................................................................................................................................. 162
Pre-Position Setpoint ......................................................................................................................... 162
Setpoint Tracking ................................................................................................................................... 162
Delay .................................................................................................................................................. 162
Traverse Rate .................................................................................................................................... 163
Soft Start ................................................................................................................................................ 163
Soft Start Bias Level .......................................................................................................................... 163
Soft Start Time Delay ......................................................................................................................... 163
Sequence of Events Recording ............................................................................................................. 163
Data Logging (Oscillography) ................................................................................................................ 163
Trending ................................................................................................................................................ 163
Limiters .................................................................................................................................................. 163
Underfrequency Compensation ......................................................................................................... 163
Volts per Hertz ................................................................................................................................... 163
Summing Point Overexcitation Limiter............................................................................................... 164
Takeover Overexcitation Limiter ........................................................................................................ 164
Underexcitation .................................................................................................................................. 164
Stator Current .................................................................................................................................... 165
Reactive Power .................................................................................................................................. 165
Protection Functions .............................................................................................................................. 165
Field Overvoltage ............................................................................................................................... 165
Field Overcurrent ............................................................................................................................... 165
Generator Undervoltage .................................................................................................................... 165
Generator Overvoltage ...................................................................................................................... 165
Loss of Sensing Voltage .................................................................................................................... 165
Generator Underfrequency ................................................................................................................ 165
Loss of Field (40Q) ............................................................................................................................ 165
Field Overtemperature ....................................................................................................................... 165
Volts per Hertz (24) ............................................................................................................................ 166
Exciter Diode Failure.......................................................................................................................... 166
Type Tests ............................................................................................................................................. 166
Agency Certifications ............................................................................................................................. 166
UL ...................................................................................................................................................... 166
CE ...................................................................................................................................................... 166
GOST-R ............................................................................................................................................. 166
NIIPT .................................................................................................................................................. 166
Real-Time Clock Battery........................................................................................................................ 166
Environment .......................................................................................................................................... 167
Physical ................................................................................................................................................. 167
Logic Timer Configuration .................................................................................................................. 169
Logic Schemes ...................................................................................................................................... 170
Default Logic Scheme ........................................................................................................................ 170
Predefined Logic Schemes ................................................................................................................ 170
Logic Scheme Modification ................................................................................................................... 184
Open “Single DECS-400 Without PSS” Logic Scheme for Editing .................................................... 185
Delete Unneeded Logic Associations ................................................................................................ 187
Create New Logic Associations ......................................................................................................... 189
Verify and Finalize Modified Logic Scheme ....................................................................................... 192
Logic for Compound Machine Paralleling.............................................................................................. 192
Logic Definitions .................................................................................................................................... 195
Logic Inputs ........................................................................................................................................ 195
Outputs .............................................................................................................................................. 198
DECS-400 Modbus
™ Protocol ............................................................................................................... 203
DECS-400
Contents