04-03 Basic Multimeter Exercises

"Find the Electrical Fault" Exercise

Basic electrical problems:

1. Blown plug fuse
2. Disconnected wire
3. Flat battery
4. Corroded battery springs
5. Faulty contact / Switch
6. Shorted conductors

Intermediate electrical problems:

1. Motor windings shorted/disconnected
2. Carbon brush contacts
3. Intermittent switch/microswitch connections
4. Faulty capacitors
5. Wire & cable sizing problems
6. Conversion from cordless to corded

Advanced electrical problems:

1. Heating element resistance calculations, leakage to earth
2. Power consumption estimates and calculations
3. Electronic component troubleshooting in electrical systems. E.g. SMPS, inverters, transformers+rectifiers
4. Battery Management Systems for appliances with rechargeable batteries
5. Substitution of components, sensors, control systems

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