Troubleshooting in contactor circuits. Compact device with integrated fault simulation.
Learning objectives
- Function of contactor circuits
- Fault finding in contactor circuits
Compact device for systematic troubleshooting in conventional contactor circuits. By curtaining various masks, only the measuring and connection points that are relevant to the circuit shown on the mask are enabled.
On the left-hand side of the training device, behind a lockable door, is the control panel for the instructor, which contains the protective devices, the mask selector switch and the fault switches.
The aim is for the student to learn systematic troubleshooting through practice with the aid of voltage and continuity testers.
The fault analysis is carried out in 4 stages:
- Description of the fault,
- suspected cause,
- fault determination by measurement and
- description of the test Method.
Method
Student experiments according to the task in the experiment description.
Target group
Vocational training in electrical engineering in trade and industry.
Intermediate learning level, Previous knowledge of the contactor circuits to be analysed is required.
The required knowledge can be acquired through the equipment:
- E7.1.3.3 Contactor controls with modules 24 V,
- E7.1.3.4 Contactor controls with 230 V modules,
- E7.1.3.5 Contactor Controls with 24 V Experimental Panels or
- E7.1.3.6 Contactor Controls with 230 V Experimental Panels.
Topics
- On-off switching
- Reversing contactor circuit
- Reversing contactor circuit with limit switches
- Automatic star-delta circuit
- Dahlander circuit
- Automatic Dahlander reversing circuit
- Automatic Dahlander reversing circuit with limit switches
