For cost and safety, the outdoor substations are installed for voltages above_________________?
Correct answer: B. 33 kV
- A. 11 kV
- B. 33 kV
- C. 60kV
- D. 110kV
Explanation
Outdoor substations become more economical and safer than indoor installations at higher voltages because large clearances and equipment dimensions are required. The conventional threshold used in this MCQ is above 33 kV.
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