| Forced Outages and Energy Losses Due to Failure of Equipment and Auxiliaries in Thermal Power Stations (Capacity 195-200 MW) in India (2012-2013 to 2014-2015) | |||||||||
| Area/Causes of Outage (195-200 MW Cap. Group) | No. of Outage | MU Loss | %age of Group F.O Loss | ||||||
| 2012-2013 | 2013-2014 | 2014-2015 | 2012-2013 | 2013-2014 | 2014-2015 | 2012-2013 | 2013-2014 | 2014-2015 | |
| I. Equipments | |||||||||
| A. Boiler | |||||||||
| Water Wall Tube Leakage | |||||||||
| Super Heater Tube Leakage | |||||||||
| Reheater Tube Leakage | |||||||||
| Economiser Tube Leakage | |||||||||
| Air Preheaters Problem | |||||||||
| Boiler Operational Problems | |||||||||
| (a) Furnace Fire Out/Flame Failure | |||||||||
| (b) Furnce Draft Abnormal | |||||||||
| (C)Drum Level High/Low | |||||||||
| Others | |||||||||
| Total Boiler | |||||||||
| B. Turbine | |||||||||
| Turbine Bearing Problem | |||||||||
| Governing/Oil System Problem | |||||||||
| Turbine Differential Expansion Problem | |||||||||
| Turbine Axial Shift/Thrust Pad Problem | |||||||||
| Turbine Eccentricity/High Vibration | |||||||||
| Turbine Rotor Failure/Damaged | |||||||||
| Turbine Control Valve Problem | |||||||||
| Condenser Tube Leakage/Cleani | |||||||||
| Main Steam Line Problem | |||||||||
| Emergency Safety Valve Closer | |||||||||
| Condenser Low Vaccum | |||||||||
| H.P and L.T Bypass System | |||||||||
| Turbine Misc. Problem | |||||||||
| Total Turbine | |||||||||
| C. Generator | |||||||||
| Stator/Stator Earth Fault | |||||||||
| Gen.Transformer Tripping/Damaged | |||||||||
| Rotor/Rotor Earth Fault | |||||||||
| Excitation Problem | |||||||||
| Gen. Cooling System Failure | |||||||||
| Seal Oil Systemk Problem | |||||||||
| Generator Bearing Problem | |||||||||
| Fire in Trubo Gen. Bushing/Bushing Failure | |||||||||
| A.V.R. Problem | |||||||||
| Generator Protection/Relay Operation Problem | |||||||||
| Hydrogen Pressure Problem | |||||||||
| Maintenance | |||||||||
| Total Generator | |||||||||
| II. Auxiliaries | |||||||||
| A. Boiler Auxiliries | |||||||||
| I.D Fans Problem | |||||||||
| F.D Fans Problem | |||||||||
| P.A Fans Problem | |||||||||
| Milling System/RC Feeder Problem | |||||||||
| Pipes and Valves Boiler Side | |||||||||
| Boiler Aux. Misc. Problems | |||||||||
| Total Boiler Aux. | |||||||||
| B. Turbine Auxiliaries | |||||||||
| Boiler Feed Pump/Motor Problem | |||||||||
| Condensate Pump Problem | |||||||||
| C.W Pump Problem | |||||||||
| Regenerative System Problem | |||||||||
| Turbine Pipes and Valves Problem | |||||||||
| Deaerator Problem | |||||||||
| Trubine Misc. | |||||||||
| Total Turbine Aux. | |||||||||
| Total Boiler and Turbine Aux. | |||||||||
| III. Others Misc. Problems | |||||||||
| A. Other Electrical Problems | |||||||||
| Unit Aux. Transformer Station Transformer Problem | |||||||||
| Gen. Transformer Tripping/Damaged | |||||||||
| H.T./L.T. Supply Problem | |||||||||
| DC Supply Problem | |||||||||
| Switch Yard/Bus Bar Problem | |||||||||
| Breker/Isolator Problem | |||||||||
| Instrumentation Problem | |||||||||
| Air Supply Problem | |||||||||
| Electrical Miscellaneous Problems | |||||||||
| Total Other Electrical Problems | |||||||||
| Lignite Feeding Problem | |||||||||
| Coal Feeding Problem | |||||||||
| Wet/Poor Quality Coal | |||||||||
| Fuel Old Problem | |||||||||
| Cooling Tower Problem | |||||||||
| Ash Handling System Problem | |||||||||
| Other Misc. Problem | |||||||||
| Fuel Supply and Other Misc. Problems | |||||||||
| Coal Shortage | |||||||||
| Total Fuel Supply and Other Misc Problem | |||||||||
| C. Grid System | |||||||||
| Transmission Constraints/Grid Disturbance | |||||||||
| Reserve Shut Down | |||||||||
| Total Grid System | |||||||||
| Total Miscellaneous | |||||||||
