Fault simulator for installation circuits

The fault simulator allows to simulate of the typical faults frequently occurring in practical application such as conductor mix-up, open phase and dead short circuit to exposed conductive part. The unit may be optionally operated at electrically isolated 23 V extra-low voltage or 230 V alternating voltage; it is therefore suitable for the use of commercial testing and measuring instruments for the detection of the faults in tests and measurements in a way based on practical work. The incorporated isolating and safety isolating transformers guarantee a high degree of safety when handling the fault simulator.

In order to provide for a fault detection based on practical application, the only accessible parts of the unit are the electrical equipment and the connections; the conductor path between individual items of equipment is hidden. A mask covers the equipment not required for the installation circuit to be tested and thus provides for straightforward system arrangement.

54 programming switches are mounted behind a lockable plate, so that various programming faults and fault combinations can be set with a programming table, without having to set up additional arrangements. The job definitions of the experimental manual are arranged in a way that the trainee is forced to analyze and test the selected system as a whole; independent planning, implementation and verification are therefore required for a fast and reliable success. This makes the fault simulator particularly suitable for use in examinations.

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