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Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
Condition monitoring in thermal power plant
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Condition monitoring in thermal power plant

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  • 1. CONDITION MONITORING IN THERMAL POWER PLANT SHIVAJI CHOUDHURY
  • 2. OBJECTIVE OF CONDITION MONITORING <ul><li>TO IDENTIFY CHANGES IN CONDITION OF MACHINE THAT WILL INDICATE SOME POTENTIAL FAILURE. </li></ul><ul><li>DIAGNOSIS OF FAULT </li></ul><ul><li>PREDICTION OF FAULT </li></ul><ul><li>TO AVOID FURTHER DAMAGES </li></ul><ul><li>TO PLAN BETTER SPARE MANAGEMENT </li></ul><ul><li>OUTAGE OF EQUIPMENT CAN BE BETTER PLANNED. </li></ul><ul><li>ENHANCING THE MACHINE EDURANCE LIMIT. </li></ul><ul><li>LESS DOWN TIME AND MORE PRODUCTIVITY </li></ul><ul><li>GREATER SAFETY TO WORK FORCE. </li></ul>
  • 3. MONITORING TECHNIQUE <ul><li>VIBRATION MONITORING. </li></ul><ul><li>LUBRICANT ANALYSIS. </li></ul><ul><li>NOISE ANALYSIS. </li></ul><ul><li>WEAR DEBRIS ANALYSIS. </li></ul><ul><li>THERMOGRAGHY. </li></ul><ul><li>D G A. </li></ul><ul><li>NDT ULTRASONIC </li></ul>
  • 4. VIBRATION ANALYSIS <ul><li>TURBINE. </li></ul><ul><li>GENERATOR. </li></ul><ul><li>PUMP. </li></ul><ul><li>MOTOR. </li></ul><ul><li>FAN. </li></ul><ul><li>COMPRESSOR. </li></ul>
  • 5. VIBRATION DIAGNOSIS <ul><li>SHAFT AND ROTOR- UNBALANCE , BENT, MISALIGNMENTS </li></ul><ul><li>BEARING –DAMAGES,,DISTORTION,LOSS OF LUBRICANT. </li></ul><ul><li>GEAR –TOOTH MESHING FAULT,WORN TEETH,MISALIGNMENT </li></ul><ul><li>MECHANICAL LOOSNESS </li></ul>
  • 6. VIBRATION ANALYSIS 8 MANY REF MARK USUALLY LOW GEAR NOISE RPM* GEAR TEETH 7 MANY REF MARK ERRATIC BAD BRG MANY *RPM 6 USE STOBE LIGHT TO FREEZE FAULTY BELT 1,2,3,4 UNSTEADY ERRATIC BAD DRIVE BELT 1,2,3,4*RPM 5 USE DIAL INDICATOR FOR POSITIVE DIAGNOSIS TWO MARKS LARGE IN AXIAL DIRECTION BENT,SHAFT MISALIGNMENT 2*RPM 4 USUALLY HIGH IN VERTICAL DIRECTION TWO MARKS ERRATIC LOOSENESS 2*RPM 3 SINGLE PRORRTIONAL IMBALANCE UNBALANCE 1*RPM 2 HIGH SPEED MACHINES WHERE PRESSURISED BEARING ARE USED ERRATIC OFTEN VERY SEVERE OIL WHIP OR OIL WHRIL ½ ROTIONAL SPEED 1 COMMENTS PHASE AMPLITUTE CAUSE FREQ S.N
  • 7. LUB OIL ANALYSIS <ul><li>MOISTURE </li></ul><ul><li>MECHANICAL IMPURIRTIES </li></ul><ul><li>DENSITY </li></ul><ul><li>VISCOCITY </li></ul><ul><li>ACIDITY </li></ul>
  • 8. LUB OIL DIAGNOSIS <ul><li>DEGRADATION OF LUB OIL </li></ul><ul><li>IMPURITIES IN LUB OIL </li></ul>
  • 9. WEAR DEBRIS ANALYSIS & DIAGNOSIS <ul><li>WEAR DEBRIS CARRIED OUT FOR WEAR PARTICLE CONCENTRATION IN OIL </li></ul><ul><li>CONDITION OF LUB OIL </li></ul><ul><li>OUTSIDE CONTENMATION </li></ul><ul><li>TO DETERMINE TO WEAR CONDITION OF MACHINE </li></ul><ul><ul><li>NORMAL RUBBING </li></ul></ul><ul><ul><li>BEARING FAILURE </li></ul></ul><ul><ul><li>CONDITION OF GEAR </li></ul></ul><ul><ul><li>CUTTING OF METAL </li></ul></ul>
  • 10. THERMOVISION MONITORING <ul><li>IDENTIFICATION OF HOT SPOT . </li></ul><ul><li>USED FOR MONITORING OF SWITCHYARD EQUIPMENT. </li></ul><ul><li>ROUTINE MONITORING OF MOTOR/PUMP. </li></ul><ul><li>MONITORING OF DRAIN PIPES LINES TO DETECT CHOKING OF PIPE LINES. </li></ul><ul><li>TO MONITOR OF CONDITION OF INSULATION ON PIPE AND EQUIPMENT. </li></ul>
  • 11. DISSOLVE GAS ANALYSIS <ul><li>FOR ALL TRANSFORMERS. </li></ul><ul><li>DIELECTRIC STRENGTH OF TRANSFORMER OIL. </li></ul><ul><li>MOISTURE,DENSITY,COLOUR OF TRANSFORMER OIL. </li></ul><ul><li>DISSOLVE GAS ANALYSIS IN TRANSFORMER OIL-TO DIAGNOSIS OF FAULT. </li></ul>
  • 12. TRANSFORMER OIL DIAGNOSIS <ul><li>CO AND CO2 IN OIL—THERMALCONDITION INVOLVING PAPER </li></ul><ul><li>METHANE,ETHANE,ETHYLENE AND SMALL AMOUNT OF ACETYLENE IN OIL - THERMAL CONDITION INVOLVING THE OIL </li></ul><ul><li>HYDROGEN,METHA AND SMALL AMOUNT OF ACETYLENE AND ETHANE IN OIL--PARTIAL DISCHARGE </li></ul><ul><li>HYDROGEN,ACETYIENE AND ETHELENE IN OIL-SUSTAINED ARCING-SUSTAINED ARCING </li></ul>
  • 13. VIBRATION MEASUREMENT MONTHLY SCHEDULE FOR CRITICAL EQUIPMENTS Y OTHER PUMPS/FANS 9 Y CW PUMPS 8 Y CEP 7 Y BFP 6 Y Y SEAL AIR FANS 5 Y Y MILL GEAR BOX 4 Y Y PA FANS 3 Y FD FANS 2 Y ID FANS 1 4 TH WEEK 3 RD WEEK 2 ND WEEK 1 ST WEEK Equipment S N
  • 14. OIL ANALYSIS MONTHLY SCHEDULE FOR CRITICAL EQUIPMENTS 5 Y BFP LUB OIL 4 Y MILL LUB OIL 3 Y ID FAN LUB OIL 2 Y Y Y Y MOT OIL 1 4 TH WEEK 3 RD WEEK 2 ND WEEK 1 ST WEEK EQUIPMENTS S N
  • 15. DISSOLVED GAS ANALYSIS YEARLY SCHEDULE FOR CRITICAL TRANSFORMERS Y STATION AND OTHER TRANSFORMER 3 Y UNIT AUX TRANSFORMER 2 Y GENERATOR TRANSFORMER 1 YEARLY SIX MONTHLY EQUIPMENT S.N
  • 16. HOT SPOT SURVEY THROUGH THERMOVISION CAMARA Y SWITCH YARD AND TRANSFORMER YARD OF STATION 1 SIX MONTHLY EQUIPMENT S.N
  • 17. TEMPERATURE MEASUREMENT BY IR PYROMETER <ul><li>Measure temperature of all drain valves , to check valves are passing or not. </li></ul><ul><li>Measure temperature of all bearing of critical pumps, fans, compressors, motors, turbine . </li></ul>Y BEARING OF FANS,PUMPS, COMPRESSORS, MOTORS,TURBINE. 2 Y DRAIN VALVE 1 IN EVERY THREE MONTH MONTHLY EQUIPMENT S.N
  • 18. WEAR DEBRIS ANALYSIS Y MILL GEAR BOX OIL 2 Y MOT OIL 1 ANNUALLY ONCE IN FOUR MONTH EQUIPMENT S.N
  • 19. STANDARDS FOR CONDITIONAL MONITORING CONDITION MONITORING AND DIAGNOSTICS OF MACHINE AND PROGNOSTICS ISO 13381 3 MECHANICAL VIBRATION AND SHOCK –VIBRATION MONITORING OF MACHINE ISO 13373 2 CONDITION MONITORING AND DIAGNOSTICS OF MACHINES ,GENERAL GUIDELINE ISO 17359 1 DESCRIPTION STANDARD NO S.N
  • 20. THANKYOU

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