24-02-2011, 03:20 PM
Infrared_Thermography.ppt (Size: 4.88 MB / Downloads: 144)
INFRARED THERMOGRAPHY
Infrared Radiation
Infrared Thermography
• An Infrared Camera Senses Infrared Radiation
• A Processor In The Camera Assigns Color To The Infrared Radiation-Different Color Equals Different Temperature
• Enabling Us To Visualize The Thermal World
Infrared Image
Color Palette Range Is Chosen For Clarity
Some Uses Of Infrared Thermography
• Electrical Inspections Hot Connections Failing Components Overloaded Circuits
• Mechanical Inspections Motors, Bearings, Drives, Steam Systems, Boilers
• Fire Hot Spots People Rescue
• Building Thermal Envelope Roof Leaks
• Military
• Medical Severe Acute Respiratory Syndrome (SARS)
• Manufacturing Processes Plastics Carpet Heat/Chilling Processes
• Mill Operations Slag Detection
• Police Work Fugitive Search Drug Enforcement Missing Persons Search
• Animal Equine Hot Joints Ligaments
Benefits of Periodic Electrical Infrared Inspections
• Predictive Maintenance...Allows Scheduling Of Repairs, Forward Buying
• Reduces Downtime… Find It, Repair It, Before It Blows Up and Stops Production
Qualitative Infrared Electrical Inspection
Qualitative Inspection: The practice of gathering information about an electrical system by observing infrared radiation, recording findings, analyzing findings, and presenting that information.
Exceptions: are abnormally warm components that may be a potential problem. Exceptions are usually identified by comparing the thermal patterns of like components.
Electrical Inspection Items
• Transformer
– Pad Mount
– Dry
– Overhead
• Service Entrance
• Main Switchgear
• Motor Control Centers
• Disconnects
• Bus Duct
• Distribution Panels
• Control Panels
• Rectifiers
• Drives
• Capacitor Banks
• Any Electrical Connection