Messages for api DIST_SPCB_FAULT_2 No sequence data in memory (004290)

asked 2024-09-02 03:25:05 -0500

ZYW200185
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Hello everyone, I want to set branch unbalance fault on IEEE39 system, such as 20%, 40% and so on. I can do this with the python api directive "distspcbfault2", but during the implementation I get this error: Messages for api DISTSPCBFAULT2 No sequence data in memory (004290). I understand that it is because the.seq file needs to be loaded before the setup fails, and this goal is achieved on the official savnw file. But the problem now is that I do not have the IEEE39.seq file. May I ask if you can solve this problem without the.seq file, or is there any address where you can obtain the IEEE39.seq file?

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Must it be an unbalanced fault, e.g. LG or is it sufficient with a balanced three phase fault?

perolofl ( 2024-09-03 04:28:11 -0500 )edit

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answered 2024-09-03 13:50:29 -0500

perolofl

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If no sequence data can be found, you can create a .seq file with typical zero sequence data for OHLs and transformers and suitable grounding codes for the transformers. For example use a script to add X0 = 3*X1 for all branches.