The primary bushings on an overhead distribution transformer are labeled H1 & H2. Which of the following statements is true?

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Multiple Choice

The primary bushings on an overhead distribution transformer are labeled H1 & H2. Which of the following statements is true?

The high-voltage (primary) side of a transformer is labeled with H designations, while the low-voltage (secondary) side uses X. On overhead distribution transformers, H1 and H2 are the primary bushings, and X1 and X2 (with X0 for neutral if present) are the secondary bushings. So the true statement is that the primary bushings are H1 and H2. The left-right orientation of H1 isn’t standardized across units, and X2 is just a secondary terminal, not necessarily the neutral.

The high-voltage (primary) side of a transformer is labeled with H designations, while the low-voltage (secondary) side uses X. On overhead distribution transformers, H1 and H2 are the primary bushings, and X1 and X2 (with X0 for neutral if present) are the secondary bushings. So the true statement is that the primary bushings are H1 and H2. The left-right orientation of H1 isn’t standardized across units, and X2 is just a secondary terminal, not necessarily the neutral.

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