In the same open-delta bank, the line voltage equals the coil voltage.

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Study for the Independent Electrical Contractors (IEC) Year 4 Test. Use flashcards and multiple-choice questions, each with hints and explanations. Prepare effectively for your exam!

Multiple Choice

In the same open-delta bank, the line voltage equals the coil voltage.

Explanation:
In an open-delta bank, the windings are connected directly between two lines, so the voltage across each coil is the line-to-line voltage. There’s no sqrt(3) relationship here, because that factor appears when comparing line-to-line voltage to a coil voltage in a wye connection. The open-delta arrangement uses delta-like connections for the windings, so the coil voltage matches the line voltage. Hence the coil voltage and the line voltage are the same.

In an open-delta bank, the windings are connected directly between two lines, so the voltage across each coil is the line-to-line voltage. There’s no sqrt(3) relationship here, because that factor appears when comparing line-to-line voltage to a coil voltage in a wye connection. The open-delta arrangement uses delta-like connections for the windings, so the coil voltage matches the line voltage. Hence the coil voltage and the line voltage are the same.

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