A salient-pole generator without dampers is rated 20 MVA, 13.8 KV and has a direct-axis subtransient reactance of 0.25 per unit. The negative- and zero-sequence reactances are, respectively, 0.35 and...


A salient-pole generator without dampers is<br>rated 20 MVA, 13.8 KV and has a direct-axis<br>subtransient reactance of 0.25 per unit. The<br>negative- and zero-sequence reactances are,<br>respectively, 0.35 and 0.10 per unit. The neutral<br>of the generator is solidly grounded. With the<br>generator operating unloaded at rated voltage<br>with E = 1/0° per unit, a single line-ta-ground<br>fault occurs the machine terminals, which then<br>have the following per unit voltages to ground:<br>%3D<br>V,=0; V,- 1.013-102.25 ;V=<br>1.013/102.25<br>naik<br>Now, For subtransient conditions due the fault:<br>1,, The negative sequence current in p.u is:<br>Answer:<br>

Extracted text: A salient-pole generator without dampers is rated 20 MVA, 13.8 KV and has a direct-axis subtransient reactance of 0.25 per unit. The negative- and zero-sequence reactances are, respectively, 0.35 and 0.10 per unit. The neutral of the generator is solidly grounded. With the generator operating unloaded at rated voltage with E = 1/0° per unit, a single line-ta-ground fault occurs the machine terminals, which then have the following per unit voltages to ground: %3D V,=0; V,- 1.013-102.25 ;V= 1.013/102.25 naik Now, For subtransient conditions due the fault: 1,, The negative sequence current in p.u is: Answer:

Jun 10, 2022
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