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TRANSMISSION LINES

TRANSMISSION LINES. -- Bhanu Bhushan -- (April, 2011). R, L, C. Power loss, Thermal MVA capacity, Expansion, Sag, Corona Voltage drop, Power angle, Stability limit Charging current, Ferranti effect. Typical parameters for a 400 kV twin - Moose line, per km.

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TRANSMISSION LINES

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  1. TRANSMISSION LINES -- Bhanu Bhushan -- (April, 2011)

  2. R, L, C. • Power loss, Thermal MVA capacity, • Expansion, Sag, Corona • Voltage drop, Power angle, Stability limit • Charging current, Ferranti effect.

  3. Typical parameters for a 400 kVtwin - Moose line, per km • R = 0.03 ohm • X = 0.33 ohm • Xc = 288 k-ohm • 300 km, 400 MVA -- 9 MW, 99 MVAR 167 MVAR

  4. Shunt reactors • Series capacitors • SIL • Auto-reclosing • Reactor switching • Transformer taps • ERS, Hot-line maintenance • Hot-line washing

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