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STABILITY OF POWER SYSTEMS
CIRCUIT INTERRUPTION AND SWITCHING
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3-phase 3-phase fault 3-phase line alternator aluminium assumed asymmetrical fault busbars cable Calculate capacitance capacitors Chapter characteristic impedance components connected constant core earth-fault electric equal equations excitation fault current flux linkages frequency given gives grid increase inductance input insulation lagging power factor line conductors line current load current loge machine magnetising maximum metres negative-sequence neutral no-load ohms open-circuit operating overhead line parallel per-unit per-unit system phase conductors phase voltage phasor phasor diagram positive-sequence power axis power factor power limit power system primary radius rated current rated voltage ratio reactive power receiving-end relay resistance secondary sending-end voltage sequence series impedance sheath short line short-circuit shown in Fig single-phase star-connected stator steady-state student supply symmetrical symmetrical components synchronous temperature terminal voltage transformer transmission line unit University of London voltage drop voltage regulation voltamperes winding zero zero-sequence