ABSTRACT
Water and wastewater operators generally have little difficulty in recognizing electrical equipment. Electrical equipment is every where and is easy to spot. For example, typical plant sites are outfitted with electrical equipment that
1. Generates electricity (a generator-or emergency generator) 2. Stores electricity (batteries) 3. Changes electricity from one form to another (transformers) 4. Transports or transmits and distributes electricity throughout the plant site (wiring
distribution systems) 5. Measure electricity (meters) 6. Converts electricity into other forms of energy (rotating shafts-mechanical energy,
heat energy, light energy, chemical energy, or radio energy) 7. Protects other electrical equipment (fuses, circuit breakers, or relays) 8. Operates and controls other electrical equipment (motor controllers) 9. Converts some condition or occurrence into an electric signal (sensors) 10. Converts some measured variable to a representative electrical signal (transducers or
transmitters).
