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