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Electrical: Transformer Switchboard Capacitance |
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Mechanical: Motors Bearings Pump |
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Process: Firebrick lining Relief valve Hearth |
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Building: Building complex Envelope Leakage |
Potential failures are thermally detected and repaired during normal working
hours thus eliminating much of the overtime labor costs. The chances of a fault
occurring during premium time are about four times greater than in normal
working hours. There is clearly enormous potential for economy in this field by
detecting and repairing incipient fault conditions during normal working hours
under planned instead of emergency onditions.
Thermal Image |
Visible |
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Thermal image shows the switchboard is running |
Thermal Image |
Visible |
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Thermal image shows the Connector is overheated |
On a small, medium voltage network severe fluctuations had led to complaints
over a period of six weeks. The high and medium voltage networks had been
subject to a detailed climbing inspection and many tests had been made to trace
the intermittent fault.
Infrared thermography was then deployed to assist in tracking down the trouble.
Within 20 minutes two hot joints were detected. When these were removed and
examined, severe corrosion and signs of internal arching was found but
externally no signs were evident that a problem existed.
Thermal Image |
Visible |
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Thermal image shows the switchboard is running |