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Application Examples

 
Electrical systems
      

Detection of poor connections

Detection of poor connections
Normal view
Detection of poor connections
Infrared view

Problem detected

The conductors of one of the phases are found to be at a higher temperature than the other phases. Obvious phase imbalance.

Proposed solution

Screw the connection of the affected conductors down tightly and perform thermographic analysis to confirm that the anomaly has disappeared. If the critical point persists, use other procedures to determine if the problem is in the switch (if it is, change the switch).

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Detection of poor connections

Detection of poor connections
Normal view
Detection of poor connections
Infrared view

Problem detected

The conductor of one of the phases is found to be at a higher temperature than the other phases. Obvious phase imbalance.

Proposed solution

Thoroughly check the connection with the termination of the affected conductor and perform thermographic analysis to confirm that the anomaly has disappeared. If the critical point persists, use other procedures to determine whether the problem is in termination/connector (if it is, replace it) or in the conductor (replace or check later connections).

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High operating temperature

High operating temperature
Normal view
High operating temperature
Infrared view

Problem detected

The relays are found to be nearly at regulation temperature (90ēC) due to overcrowding (or lack of separation) and poor ventilation of the housing.

Proposed solution

The operating temperature of the relays is normally high, so separation between them and proper ventilation of the housing is recommended to prevent such high temperatures being reached. Check afterwards using thermographic analysis.

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Detection of poor connections and phase deterioration

Detection of poor connections and phase deterioration
Normal view
Detection of poor connections and phase deterioration
Infrared view

Problem detected

The fuse in one of the phases is found to be at a higher temperature than the others. Potential start of fuse failure or phase imbalance.

Proposed solution

Thoroughly check the connection of the affected fuse/base and carry out thermographic analysis to confirm that the anomaly has disappeared. If the critical point persists, use other procedures to determine if the problem is in the fuse/base (replace if it is).

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Detection of poor connections

Detection of poor connections
Normal view
Detection of poor connections
Infrared view

Problem detected

The high voltage blades in one of the phases are found to be at a higher temperature than the rest. Obvious fault in the blade contacts.

Proposed solution

Replace the affected blade or repair it with suitable resin. Perform thermographic analysis to confirm that the problem has been solved.

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Detection of poor insulation

Detection of poor insulation
Normal view
Detection of poor insulation
Infrared view

Problem detected

The conductor of one of the phases is found to be at a higher temperature than the others. Obvious insulation fault.

Proposed solution

Replace the conductor and check the source of the insulation fault to ensure that the problem does not occur again.

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Detection of poor connections

Detection of poor connections
Normal view
Detection of poor connections
Infrared view

Problem detected

The conductor of one of the phases is found to be at a temperature greater than 80ēC and hence near to the regulation maximum (90ēC). Obvious phase imbalance.

Proposed solution

Screw the connection of the affected conductor down tightly and perform thermographic analysis to confirm that the anomaly has disappeared. If the critical point persists, use other procedures to determine if the problem is in the switch (if it is, change the switch) or in the conductor (replace or check previous connections).

up

Detection of poor connections

Detection of poor connections
Normal view
Detection of poor connections
Infrared view

Problem detected

The conductor of one of the phases is found to be at a higher temperature than the other phases. Obvious phase imbalance.

Proposed solution

Screw the connection of the affected conductor down tightly and perform thermographic analysis to confirm that the anomaly has disappeared. If the critical point persists, use other procedures to determine if the problem is in the switch (if it is, change the switch).

up

Detection of poor connections

Detection of poor connections
Normal view
Detection of poor connections
Infrared view

Problem detected

The conductors of one of the phases are found to be at a temperature greater than 100ēC and hence higher than the regulation one (90ēC). Obvious phase imbalance

Proposed solution

Screw the connection of the affected conductors down tightly and perform thermographic analysis to confirm that the anomaly has disappeared. If the critical point persists, use other procedures to determine if the problem is in the switch (if it is, change the switch) or in the conductor (replace or check previous connections).

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