| Number of Outages and Loss of Generation Due to Generator Problems of Thermal Power Plant in India (2010-2011, 2011-2012, 2013-2014 and 2014-2015) Areas/Causes of Outages No. of Outages Loss (In MU) %age of Max. Possible Gen. 2010- 2011- 2013- 2014- 2010- 2011- 2013- 2014- 2010- 2011- 2013- 2014- 2011 2012 2014 2015 2011 2012 2014 2015 2011 2012 2014 2015 Stator/Stator Earth Fault 51 40 68 44 2779.60 1634.95 1814.71 2494.05 0.38 0.20 0.16 0.20 Rotor/Rotor Earth Fault 26 18 16 11 226.23 330.95 28.14 349.27 0.03 0.04 0.00 0.03 Gen. Transformer - 38 39 29 - 1291.37 2108.97 3155.66 - 0.16 0.19 0.25 Tripping/Damaged Excitation Problem 56 47 54 51 75.16 63.84 200.52 125.66 0.01 0.01 0.02 0.01 Gen. Cooling System Failure 8 13 8 1 8.91 101.19 22.42 2.25 0.00 0.01 0.00 0.00 Seal Oil System Problem 21 8 7 10 184.43 115.87 35.24 57.66 0.03 0.01 0.00 0.00 Generator Bearing Problem 8 6 4 7 41.77 174.51 12.34 975.93 0.01 0.02 0.00 0.08 Fire In Turbo Gen. Bushing 15 13 3 5 78.52 25.69 969.11 3752.88 0.01 0.00 0.09 0.30 /Bushing Failure A.V.R. Problem 23 26 19 17 175.68 131.56 69.09 644.92 0.02 0.02 0.01 0.05 Generator Protection/Relay 119 99 158 241 688.96 272.11 1582.49 7473.00 0.09 0.03 0.14 0.59 Operation Problem Hydrogen Pressure Problem 27 18 21 23 1293.60 2196.04 2960.57 4030.84 0.18 0.27 0.26 0.32 Generator Miscllaneous 75 48 38 36 492.12 1703.11 717.90 957.13 0.07 0.21 0.06 0.08 Maintenance Total 429 374 435 475 6044.96 8041.18 10521.49 24019.25 0.83 0.99 0.94 1.90 Abbr. : MU : Million Units. Source : Ministry of Power, Govt. of India. (ON524) & (17268) |
