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Infrared thermographic inspection.
Examples in a factory environment
Area1Min Mean Max 20.7 36.9 50.0
Area1Min Mean Max 20.7 36.9 50.0
*>50.0°C
*<10.2°C
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
Here we have an example of a single overheated diodeon a MIG welder.
22.3°C
153.0°C
40
60
80
100
120
140
AR01: 166.9°C
This is an example of a bad connection on atransformer. Note the joint temperature is at 166.9°C.
16.1°C
29.7°C
18
20
22
24
26
28
Orange Bus: 28.1°C
This example shows a section of bus with a bad joint.Bus failures are often very expensive in terms of
PDC Systems23-25 Windermere RdBlackpool FY4 2BX
Tel (01253) 400541Fax (01253) 400552
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safety and plant downtime.
19.5°C
64.8°C
20
30
40
50
60
Shunt: 63.3°C
Another example of an overheated/damaged shunt.
29.9°C
88.3°C
40
60
80
F18: 91.0°C
Here we have an example of a bad fuse connection ina pump supply cabinet.
18.5°C
37.0°C
20
25
30
35
SP01
AR02: 41.4°C
Here was have an example of thermal striping of thepower cable to the weld gun. This type of defect isresponsible for a great deal of individual gundowntime and quality defects.
PDC Systems23-25 Windermere RdBlackpool FY4 2BX
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19.7°C
47.7°C
20
30
40SP01: 41.0°C
AR01: 41.4°C
This example shows an increased robot drive motortemperature.
20.6°C
60.2°C
30
40
50
60
Motor Body: 58.8°C
Ambient: 21.0°C
This example is of a DC motor. This motor isoperating at a much higher temperature than normalcaused by over tension of the drive belt.
33.2°C
65.7°C
40
50
60
AR01: 71.4°C
Here we see a single termination on a contactor whichis overheating. This defect would be virtuallyimpossible to identify using conventional techniques.
PDC Systems23-25 Windermere RdBlackpool FY4 2BX
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29.4°C
103.1°C
40
60
80
100
F2 right phase: 103.9°C
Another example of a resistance joint on a contactor.Even though there are many cables and connectionsthe defect is still easy to spot.
32.2°C
65.3°C
40
50
60
Fuse F13: 74.7°C
In this example we see a fuse bank with a badconnection at the bottom of one of the fuses.
22.4°C
100.7°C
40
60
80
100
AR01: 101.1°C
Panel fires are often caused by overheating contactorcoils.
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17.1°C
59.2°C
20
30
40
50
LI01: 59.6°C
Remote investigation of cables (even in a cable pit) arerelatively straight forward using the IR camera.
15.6°C
59.0°C
20
30
40
50
Conn Box Top: 57.3°C
Cable: 22.4°C
Transformer Body Top: 26.9°C
In this example of an HV transformer we see internalheating - probably due to a loose connection - withpotentially catastrophic consequences.