Physics · Power Systems
When comparing a single-circuit three-phase line to a double-circuit three-phase line configuration mounted on the same tower (with similar individual spacing), the double-circuit line generally exhibits:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The exact same GMD profile but a lower total GMR value
- 2A higher GMR but a disproportionately much higher GMD
- 3Higher equivalent GMR relative to equivalent GMD, leading to significantly lower total inductance✓
- 4Lower GMD and lower GMR, causing an erratic change in total inductance
Correct answer
Higher equivalent GMR relative to equivalent GMD, leading to significantly lower total inductance
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