NM CID EL-1 Practice Questions - New Mexico CID EL-1 Electrical Distribution Systems, Including Transmission Lines Examination Exam

The primary function of a typical utility distribution substation is to:

step transmission or subtransmission voltage down to distribution voltage and provide switching and protection raise distribution voltage for long-distance interstate transmission convert all incoming power from alternating current to direct current serve only as a storage yard for spare poles and transformers

Correct Answer:

step transmission or subtransmission voltage down to distribution voltage and provide switching and protection

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