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POWER SYSTEMS

Power Systems
The rating of fuse wire is always expressed in

  ampere-volts.
  kWh.
  ampere-hours.
  amperes.

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Power Systems
Lightning arresters are used for

All of these
 protection of equipment from external lightning
 protection of equipment from open circuits
 protection of equipment from short circuits

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Power Systems
Lightning arresters are made up of which material?

 silicon oxide
 any of the above
 silver
 copper

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Power Systems
Which of the following transformer is used in sub station for operating a protective relay?

 capacitor voltage transformer
All of these
 distribution transformer
 auto transformer

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Power Systems
Which device is used for protection of equipment from from damage caused by overload or short circuit?

 CVT
 circuit breaker
 current transformer
 lightning arrester

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