Determine the fault current when a double line to ground fault occurs at the terminals of the alternator.
Determine the fault current when a double line to ground fault occurs at the terminals of the alternator.
Read lessA dead earth fault occurs on one conductor of a 3-phase cable supplied by a 5000 kVA, 3-phase generator with earthed neutral. The sequence impedances of the alternator are given by Z1=(0.4+j4)ohm; Z2=(0.3+j0.6)ohm and Z0=(0+j0.45)ohm per phase. The sequence impedance ...Read more
A dead earth fault occurs on one conductor of a 3-phase cable supplied by a 5000 kVA, 3-phase generator with earthed neutral. The sequence impedances of the alternator are given by Z1=(0.4+j4)ohm; Z2=(0.3+j0.6)ohm and Z0=(0+j0.45)ohm per phase. The sequence impedance of the line up to the point of fault are (0.2+j0.3)ohm, (0.2+j0.3)ohm, (0.2+j0.3)ohm and (3+j1)ohm. Find the fault current and the sequence components of the fault current. Also find the line to earth voltages on the in faulted lines. The generator line voltage is 6.6kV.
Read lessA generator supplies 1.0 p.u. power to an infinite bus as shown in the figure. The terminal voltage and infinite bus voltage are 1.0 p.u.All the reactances are on a common base. Determine steady state stability limit: When both lines are ...Read more
A generator supplies 1.0 p.u. power to an infinite bus as shown in the figure. The terminal voltage and infinite bus voltage are 1.0 p.u.All the reactances are on a common base. Determine steady state stability limit:
- When both lines are in.
- When one line is switched off.
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