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Dynamic simulation

asked 2023-12-05 08:46:25 -0500

rahmed
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How to use PSS/E to run a dynamic simulation of a single-phase short-circuit which, after a certain time, becomes a two-phase short-circuit on the same bus?

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answered 2023-12-05 11:47:11 -0500

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Unbalanced faults can be simulated if sequence data (zero and negative sequence) are present in the saved case.

Initialise simulation
Run to time t1
Apply unbalanced bus fault and select "Line-to-ground" fault
Run to time t2
Clear fault
Apply unbalanced bus fault and select "Line-to-line or
Line-to-line-to-ground" fault
Clear fault
Run to t4

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Comments

Thank you for your answer. But, how can we fix the impedances R L-L and X L-L or R L-G and X L-G of the faults?

rahmed ( 2023-12-08 06:30:16 -0500 )edit

For solid fault, use R L-L and X L-L = 0. For LLG fault set R L-G and X L-G = 0. For LL fault set X L-G = 9999.

perolofl ( 2023-12-11 03:51:07 -0500 )edit

Thank you for your answer

rahmed ( 2023-12-14 05:18:17 -0500 )edit

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Asked: 2023-12-05 08:46:25 -0500

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Last updated: Dec 05 '23

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