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Question

Which of the following voltage level is a valid secondary voltage distribution system? 

A.

33 kV /11 kV 

B.

6.6 kV / 3.3 kV 

C.

415 V /240 V 

D.

43.3 kV / 415 V

Answer ( Option C)

415 V /240 V 

Solution

Secondary voltage are operated at a low voltage level which is typically equal to the main voltage of electric appliances as 415/240 V .

Hence, the correct option is (C).

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