| Number of Outages and Energy Loss of Thermal Power Stations (Capacity 660-800 MW) on Account of Various Equipment and Auxiliaries in India (2011-2012) | |||
| Area/Cause of Outage | No. of Outages | MU Loss | %age of Group F.O. Loss |
| Equipments | |||
| Boiler | |||
| Water Wall Tube Leakage | |||
| Others | |||
| Total Boiler | |||
| 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 Closure | |||
| Condenser Low Vaccum | |||
| H.P. & L.P. Bypass System | |||
| Turbine Misc. Problem | |||
| Total Turbine | |||
| Generator | |||
| Stator/ Stator Earth Fault | |||
| Gen. Transformer Tripping/ Damaged | |||
| Rotor/ Rotor Earth Fault | |||
| Excitation Problem | |||
| Gen. Cooling System Failure | |||
| Seal Oil System Problem | |||
| Fire In Turbo Gen. Bushing/ Bushing Failure | |||
| Generator Bearing Problem | |||
| A.V.R. Problem | |||
| Generator Protection/ Relay Operation Problem | |||
| Hydrogen Pressure Problem | |||
| Generator Miscllaneous Maintenance | |||
| Total Generator | |||
| Auxiliaries | |||
| Boiler Auxiliaries | |||
| 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. Promlems | |||
| Total Boiler Aux. | |||
| Turbine Auxiliaries | |||
| Boiler Feed Pump/Motor Problem | |||
| Condensate Pump Problem | |||
| C.W. Pump Problem | |||
| Regenerative System Problem | |||
| Turbine Pipes & Valves Problem | |||
| Deaerator Problem | |||
| Turbine Misc. | |||
| Total Turbine Aux. | |||
| Total Boiler & Turbine Aux. | |||
| Others Misc., Mech. & Elec. Problems | |||
| Other Electrical Problems | |||
| Unit Aux. Transformer/ Station Transformer Problems | |||
| H.T./L.T. Supply Problem | |||
| Dc Supply Problem | |||
| Switch Yard/Bus Bar Problem | |||
| Breaker/Isolator Problems | |||
| Misc. Fire Hazards/Fire In Cable Gallery | |||
| Fuel Supply & Other Misc. Problems | |||
| Instrumentation Problem | |||
| Electrical Miscellaneous Problems | |||
| Electrical Miscellaneous Problems | |||
| Air Supply Problem | |||
| Electrical Miscellaneous Problems | |||
| Total Other Electrical Problems | |||
| Fuel Supply And Other Misc Problems | |||
| Coal/Lignite Shortage/ Feeding Problem | |||
| Coal Shortage/ Feeding Problem | |||
| Wet/ Poor Quality Coal | |||
| Wet/ Poor Quality Lignite | |||
| Fuel Oil Problem | |||
| Cooling Tower Problem | |||
| Ash Handling System Problem | |||
| Raw Water Problem | |||
| D.M. Water Problem | |||
| E.S.P. / Pollution Problem | |||
| E.S.P. Problem | |||
| Non-Readiness of Residual Work of New Unit | |||
| Vintage Unit Withdrawn And Closed For Operation | |||
| Other Misc. Problems | |||
| Fuel Supply & Other Misc. Problems | |||
| Total Fuel Supply And Other Misc Problems | |||
| Grid System | |||
| Transmission Constraints/Grid Disturbance | |||
| Reserve Shut Down | |||
| Total Grid System | |||
| Total Miscellaneous | |||
