Electrical Power Grid System

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Across
  1. 4. used to convert voltage from the power plant to high electrical voltage (200,00 volts or higher) for long distance transportation along the power grid.
  2. 5. electrical current that changes direction and strength; primarily used by power companies for distribution to residential areas.
  3. 6. electrical power from the substation is transported along the grid through heavy cables on large steel towers, up to 300 miles at a time.
  4. 7. a measuring device or gauge used to determine the amount of electricity used in a residence or building; electrical energy is usually measured in kilowatt hours.
  5. 8. the power plant creates three phase A/C power for the electrical power grid; it can be driven by diesel engine, or steam turbine power by coal, natural gas, oil, geothermal, or a nuclear reactor.
Down
  1. 1. electrical power lines used to transport and reduce voltage levels to be used by customers in residential or business locations; at this point the grid uses transformers to reduce the voltage levels to less than 10,000 volts.
  2. 2. a switch (used as a safety device), installed within an electrical circuit; designed to stop the flow of electric current through a circuit if the current reaches excessive levels(ie short circuit), preventing fires and electrical shorts.
  3. 3. a cylindrical shaped device usually attached to a large pole near the residence or building; this device steps down voltage from the distribution grid to approximately 240 volts A/c for the consumer.