On an overhead transformer, which windings do the high voltage primary bushings connect to?

• A. Primary windings
• B. Secondary windings
• C. Neutral conductor
• D. Grounding stud

Answer: (A)

The high voltage bushings are the external connections that feed the winding on the high‑voltage side. They connect directly to the primary winding inside the transformer, since the primary is the winding that carries the high voltage from the source. The secondary winding, on the other side, is connected to the low‑voltage bushings. The neutral conductor, if present, and the grounding stud serve separate roles: neutral is part of winding configurations in some setups, but not what the high‑voltage bushings attach to, and the grounding stud is for safety grounding of the transformer—not for carrying load. So, the high voltage primary bushings connect to the primary windings.