By steam extraction test on a∏T-140/165-130/15-2type heating unit

the diagram reflecting relationship between the new steam flow rate and electric power under actual condition was drawn.Moreover

according to the unit's characteristics and actual heat load

the above diagram and the corresponding test data were analyzed and the power at different extraction flow rates was revised.Thus the peak regulation range at different heat loads was obtained.The results show that:with an increase in extraction flow

the unit's minimum electric power rose

and the maximum electric power grew first and then decreased;when the extraction flow was 60t/h

120t/h

180t/h

240t/h

300t/h

and 360t/h

the unit's peak regulation range was 79.88MW

77.98MW

67.35MW

61.11MW

55.88MW and 30.13MW

respectively

namely the higher of the extraction flow

the smaller of the unit's peak regulating range.