QUESTION FIVE A 110 kV, three-phase, 50 Hz, 150 km long overhead line consists of three 1.8 cm diameter stranded copper

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Question Five A 110 Kv Three Phase 50 Hz 150 Km Long Overhead Line Consists Of Three 1 8 Cm Diameter Stranded Copper 1 (86.28 KiB) Viewed 34 times

QUESTION FIVE A 110 kV, three-phase, 50 Hz, 150 km long overhead line consists of three 1.8 cm diameter stranded copper conductors spaced in 2.5 m delta arrangement. Assume surface irregularity factor m = 0.89 (roughness factor), m for local corona = 0.74 and m for general corona is 0.84. Determine the following at 290° C and barometric pressure of 76 cm Hg. Disruptive voltage (ii) (iii) (iv) Visual corona voltage for local corona Visual corona voltage for general corona Power loss due to corona under fair weather and in wet conditions