Synchrophasor Initiative in India - erldc

More documents

Recommendations

Info

SYNCHROPHASORS - INITIATIVE IN INDIA JUNE 20125.2.2 Case Study-15: Three phase fault at 400 kV Farakka on 16-Mar-2012Similarly figure 58 shows the dip in voltage of all the three phases at 400kV Vindhyachal(Northern Region) can be seen during a 3 phase fault at Farakka STPS (in Eastern region). Itcan be seen that there was delayed fault clearance i.e. in 1280 milli seconds.Figure 58: Voltage profile at Vindhyachal (NR) during tripping of units at Farakka STPS (ER)POSOCO Page 72 of 143
SYNCHROPHASORS - INITIATIVE IN INDIA JUNE 20125.3 Detection of exceptional grid eventsSynchrophasor data has also been utilized to detect load throw off or generation loss in the gridas described ahead.5.3.1 Case Study-16: Partial disturbance due to voltage collapseA partial disturbance caused by voltage collapse occurred in 220 kV Punjab system on 20th July2011. The voltage at 220 kV Bhatinda and 220 kV Lehra Mohabbat was reported to have goneas low as 78 kV and 92kV respectively. The voltage profile of 400 kV Moga bus during the eventis shown in the below figure 59. It can be observed that there is around 4kV to 6kV dip involtages in all the three phases of 400kV system for around 9 seconds. The bus voltagerecovers after the cascade tripping.Figure 59: Dip in voltage at Moga during disturbance in Punjab systemFigure 60: Increase in frequency during the incident in Punjab due to loss of loadPOSOCO Page 73 of 143
Page 5:
SYNCHROPHASORS - INITIATIVE IN INDI
Page 11:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30: SYNCHROPHASORS - INITIATIVE IN INDI
Page 79: SYNCHROPHASORS - INITIATIVE IN INDI
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
show all

Synchrophasor Initiative in India - erldc

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?