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Electrical Engineering
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Electrical Engineering
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25 Questions

1. A material in which charge moves through easily

2. An electrode where free electrons are produced

3. Used to convert mechanical energy to electrical energy coupled to the turbine shaft

4. Positively charged particles of an atom

5. Is the vector sum of real and reactive power in an AC circuit and is measured in volt-amperes.

6. A voltage source that does not change polarity such as that delivered from a battery.

7. If you are requesting service for new loads - or are making changes that affect the time when a load would operate or the amount of load -

8. The flow of electrons

9. The instantaneous movement from negatively charged atoms to positively charged atoms

10. An electrode where reduction occurs

11. Are used to provide low voltage circuits for use in metering - monitoring - and protective relaying applications. The turns ratio of the transformer determines the low voltage rating as a function of the system voltage - and is often selected to be 1

12. Used at low voltage levels (600 volts and below) to feed individual loads. These devices typically contain a thermal magnetic element which provides an inverse time tripping characteristic.

13. Temperature Controlled

14. An assembly of circuit breakers typically used to supply power to large motors and medium or low voltage transformers within the auxiliary power system. Each breaker is contained in a separate cubicle along with associated current transformers - and

15. A device that changes mechanical energy into electricity

16. A mechanical switching device used to either enable or interrupt current flow in a circuit. Typically provides both overload and fault protection. Is similar to a fuse; however - can be reset and reused.

17. One or more cells connected in series

18. Used to supply power to large industrial and commercial facilities as well as the Retail System. lines can be compared to state highways and major roads around cities.

19. A condition where one or more phases have come into contact with ground or other phase(s) of the circuit - or the insulation separating them has been degraded. The current flow is only limited by the impedance between the source(s) and the ****

20. A material that has no resistance to electrical current - this usually occurs near absolute zero

21. Large battery - a battery charger - and a distribution panel

22. Is measured in watts and represents the power consumed by the resistive elements in an AC circuit

23. Is a configuration used for very high current bus assemblies typically operating at generator voltage levels of 20 to 24 kV where each conductor is mounted within its own enclosure.

24. May be used to power various low voltage loads and are typically used for applications that do not require any form of remote control.

25. Any path that electrons flow through

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