condition monitoring in thermal power plant 1211437199321892 8
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CONDITION MONITORING IN CONDITION MONITORING IN THERMAL POWER PLANTTHERMAL POWER PLANT
SHIVAJI CHOUDHURYSHIVAJI CHOUDHURY
OBJECTIVE OF CONDITION OBJECTIVE OF CONDITION MONITORINGMONITORING
• TO IDENTIFY CHANGES IN CONDITION OF MACHINE THAT WILL INDICATE SOME POTENTIAL FAILURE.
• DIAGNOSIS OF FAULT• PREDICTION OF FAULT• TO AVOID FURTHER DAMAGES• TO PLAN BETTER SPARE MANAGEMENT• OUTAGE OF EQUIPMENT CAN BE BETTER
PLANNED.• ENHANCING THE MACHINE EDURANCE LIMIT.• LESS DOWN TIME AND MORE PRODUCTIVITY• GREATER SAFETY TO WORK FORCE.
MONITORING TECHNIQUEMONITORING TECHNIQUE
• VIBRATION MONITORING.
• LUBRICANT ANALYSIS.
• NOISE ANALYSIS.
• WEAR DEBRIS ANALYSIS.
• THERMOGRAGHY.
• D G A.
• NDT ULTRASONIC
VIBRATION ANALYSISVIBRATION ANALYSIS
• TURBINE.• GENERATOR.• PUMP.• MOTOR.• FAN.• COMPRESSOR.
VIBRATION DIAGNOSISVIBRATION DIAGNOSIS
• SHAFT AND ROTOR- UNBALANCE , BENT, MISALIGNMENTS
• BEARING –DAMAGES,,DISTORTION,LOSS OF LUBRICANT.
• GEAR –TOOTH MESHING FAULT,WORN TEETH,MISALIGNMENT
• MECHANICAL LOOSNESS
LUB OIL ANALYSISLUB OIL ANALYSIS
• MOISTURE
• MECHANICAL IMPURIRTIES
• DENSITY
• VISCOCITY
• ACIDITY
LUB OIL DIAGNOSISLUB OIL DIAGNOSIS
• DEGRADATION OF LUB OIL
• IMPURITIES IN LUB OIL
WEAR DEBRISWEAR DEBRIS
ANALYSIS & DIAGNOSIS ANALYSIS & DIAGNOSIS • WEAR DEBRIS CARRIED OUT FOR WEAR
PARTICLE CONCENTRATION IN OIL• CONDITION OF LUB OIL• OUTSIDE CONTENMATION• TO DETERMINE TO WEAR CONDITION OF
MACHINE1. NORMAL RUBBING2. BEARING FAILURE3. CONDITION OF GEAR4. CUTTING OF METAL
THERMOVISION MONITORINGTHERMOVISION MONITORING
• IDENTIFICATION OF HOT SPOT .
• USED FOR MONITORING OF SWITCHYARD EQUIPMENT.
• ROUTINE MONITORING OF MOTOR/PUMP.
• MONITORING OF DRAIN PIPES LINES TO DETECT CHOKING OF PIPE LINES.
• TO MONITOR OF CONDITION OF INSULATION ON PIPE AND EQUIPMENT.
DISSOLVE GAS ANALYSISDISSOLVE GAS ANALYSIS
• FOR ALL TRANSFORMERS.• DIELECTRIC STRENGTH OF
TRANSFORMER OIL.• MOISTURE,DENSITY,COLOUR OF
TRANSFORMER OIL.• DISSOLVE GAS ANALYSIS IN
TRANSFORMER OIL-TO DIAGNOSIS OF FAULT.
TRANSFORMER OIL DIAGNOSISTRANSFORMER OIL DIAGNOSIS
• CO AND CO2 IN OIL—THERMALCONDITION INVOLVING PAPER
• METHANE,ETHANE,ETHYLENE AND SMALL AMOUNT OF ACETYLENE IN OIL - THERMAL CONDITION INVOLVING THE OIL
• HYDROGEN,METHA AND SMALL AMOUNT OF ACETYLENE AND ETHANE IN OIL--PARTIAL DISCHARGE
• HYDROGEN,ACETYIENE AND ETHELENE IN OIL-SUSTAINED ARCING-SUSTAINED ARCING
CONDITION MONITORING CONDITION MONITORING SCHEDULESCHEDULE
• VIBRATION MONITORING DAILY/WEEKLY/MONTHLY
• CHEMICAL ANALYSIS OF OIL QUARTELY
• THERMOGRAPHY QUARTELY
• DGA QUARTELY
• NSD ULTRASONIC ANNUALY
THANKYOUTHANKYOU