Forced Outages and Energy Losses Due to Failure of Equipment and Auxiliaries in Thermal Power Stations (Capacity 210 MW) in India (2012-2013 to 2014-2015) | |||||||||
Area/Causes of Outage (210 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 | |||||||||
Furnace Trouble | |||||||||
Boiler Operation Problems | |||||||||
(a) Furnace Fire Out/Flame/Failure | |||||||||
(b) Furnace Draft Abnormal | |||||||||
(C) Drum Level High/Low | |||||||||
Others | |||||||||
Total Boiler | |||||||||
B.Turbine | |||||||||
Turbine Bearing Problem | |||||||||
Governing/Oil Sustem Problem | |||||||||
Turbine Differential Expansion Problem | |||||||||
Turbine Axial Shift/Thrust Pad Problem | |||||||||
Turbine Eccentricity/High Vibration | |||||||||
Turbine Rotro Failure/Damaged | |||||||||
Turbine Rotor Valve Problem | |||||||||
Condenser Tube Lekage/Cleani | |||||||||
Main Steam Line Promblem | |||||||||
Emergency Safety Valve Closure | |||||||||
Condenser Low Vaccum | |||||||||
H.P and L.P Bypass System | |||||||||
Turbine Misc. Problem | |||||||||
Total Turbine | |||||||||
C.Generator | |||||||||
Stator/Stator Earth Fault | |||||||||
Rotor/Rotor Earth Fault | |||||||||
Generator Transformer Tripping/Damaged | |||||||||
Excitation Problem | |||||||||
Generation Cooling System Failure | |||||||||
Seal Oil System Problem | |||||||||
Generator Bearing Problem | |||||||||
Fire in Trubo Gen. Bushing/Bushing Failure | |||||||||
A.V.R Problem | |||||||||
Generation Protection/Relay Operation Problem | |||||||||
Hydrogen Pressure Problem | |||||||||
Generation Miscllaneous Maintenance | |||||||||
Total Generator | |||||||||
II. Auxiliaries | |||||||||
A. Boiler Auxiliaries | |||||||||
I.D Fans Problems | |||||||||
F.D Fans Problems | |||||||||
P.A Fans Problems | |||||||||
Milling System/RC Feeder Problem | |||||||||
Pipes and Valves Boiler Side | |||||||||
Boiler Aux.Misc. Problems | |||||||||
Total Boiler Aux. | |||||||||
B. Turbine Auxiliaries | |||||||||
Bolier Feed Pump/Motor Problem | |||||||||
Condensate Pump Problem | |||||||||
C.W Pump Problem | |||||||||
Regenerative System Problem | |||||||||
Turbine Pipes and Valves Problems | |||||||||
Deaerator Problem | |||||||||
Turbine Misc. | |||||||||
Total Trubine Aux. | |||||||||
Total Boiler and Turbine Aux. | |||||||||
III. Others Misc. Problems | |||||||||
A. Other Electrical Problem | |||||||||
Unit Aux. Transformer/Station Transformer Problems | |||||||||
Gen. Transformers Tripping/Dameged | |||||||||
H.T./L.T. Supply Problems | |||||||||
DC Supply Problems | |||||||||
Switch Yard/Bus Bar Problems | |||||||||
Breaker/Isolator Problems | |||||||||
Misc. Fire Hazards/Fire in Cable Gallery | |||||||||
Fuel Supply and Others Misc. Problems | |||||||||
Instrumentation Problem | |||||||||
Air Supply Problem | |||||||||
Electrical Miscellaneous Problems | |||||||||
Total Other Electrical Problems | |||||||||
B. Fuel and Other Misc. Problems | |||||||||
Coal Feeding Problem | |||||||||
Lignite Feeding Problem | |||||||||
Wet/Poor Quality Lignite | |||||||||
Wet/Poor Quality Coal | |||||||||
Fuel Oil Problems | |||||||||
Cooling Tower Problems | |||||||||
Ash Handling System Problem | |||||||||
Raw Water Problem | |||||||||
D.M Water Problem | |||||||||
E.S.P./Pollution Problem | |||||||||
E.S.P.Problem | |||||||||
Vintage Unit Withdrawn and Closed for Operation | |||||||||
Fuel Supply and Others Misc. Problems | |||||||||
Others Misc. Problems | |||||||||
Coal Storage | |||||||||
Total Fuel Supply and Other Misc. Problem | |||||||||
C. Grid System | |||||||||
Transmission Constraints/Grid Disturbance | |||||||||
Reserve Shut Down | |||||||||
Total Grid Systm | |||||||||
Uneconomical Operation | |||||||||
Total Miscellaneous |