Predictive Maintenance Application

About us

• Tun Towichakchaikun • Reliability Engineer

• Panya Tummajong • Reliability Supervisor

• Productive Maintenance department

• Energy division

• Siam Kraft Industry Co., Ltd.

• SCG Paper

Agenda

• Introduction to predictive maintenance

• Vibration application

• Thermography application

• Motor tester application

• Q&A

Introduction to Predictive Maintenance

In this presentation, we will cover …

• Vibration Analysis

• Infrared Thermography

• Motor Analysis

*Figure from SKF vibration level 1 material.

Vibration Analysis Application

Introduction to Vibration Analysis

*Figure from SKF vibration level 1 material.

Introduction to Vibration Analysis

• Acquire the vibration reading.

• Perform an analysis by comparing to the diagnostic standard.

• e.g. “Technical associates of Charlotte.”

Introduction to Vibration Analysis

• Compare the severity to the standard.

• e.g. ISO 10816-3

• e.g. ISO 7919-3

Case study 1 : Force Draft Fan

Case study 1 : Force Draft Fan

Case study 2 : Cooling Water Pump

Case study 2 : Cooling Water Pump

Case study 3 : Vacuum Pump

Case study 3 : Vacuum Pump

Case study 4 : Induced Draft Fan

Case study 4 : Induced Draft Fan

Infrared Thermography Application

Introduction to Infrared Thermography

R

E

T

Total Radiation from Object = R + T + E

R = Reflected Energy T = Transmitted Energy E = Emitted Energy from Object

IR Application : Boiler Insulation

IR Application : Electrical

Motor Analysis Application

Introduction to Motor Analyzer Fault Zone Online Analyzer

Power Quality Power Analysis Phase-to-Phase Voltages Harmonic Voltage Factor Voltage THD

Power Circuit Power Analysis Voltage Imbalance Current Imbalance

Insulation N/A

Stator Power Analysis Impedance Imbalance Phase Power Factors

Rotor Rotor Evaluation Pole-Pass Frequency sideband amplitude Swirl Effect at 5th Harmonic

In-Rush / Start-Up

Air Gap Eccentricity Amplitude of the 1st and 3rd sidebands of line frequency at the eccentricity frequency* *Eccentricity Frequency = (#Bars)(Shaft RPM/60)

Case study 5 : Combined Technology

Case study 6 : Combined Technology