Fitter Engineering task
In the role of Fitter, students use a virtual voltmeter to identify a fault at one of the island substations. Once the fault has been found, the user has to isolate it, while keeping as many homes and business connected to the network as possible.
After completing this activity students will:
- Understand how a voltmeter might be used to find faults.
- Understand how fitters will try to resolve faults by re-routing supplies.
Answers for Engineering challenge: Fitter
Note: Students can get help by clicking on 
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In these two areas, the potential difference between the red line, 33 kV, and the blue line, 11kV, should be 22 kV. However it is 33kV, indicating that the blue line is faulty, and must be 0 kV.
Plan 1:
9,560 people will have power
Plan 2:
10,438 people will have power – but the hospital won’t.
Choose Plan 2, so that supply to the hospital is maintained.
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