Inverter building using Wiseguys Power board and the Nano drive board


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KeepIS

Guru

Joined: 13/10/2014
Location: Australia
Posts: 2101
Posted: 11:07pm 15 Mar 2025      

  analog8484 said  
  KeepIS said  High current draw then Short on Inverter AC line.

Looking back at the LOG, an Unknown fault on the AC wiring had caused the DC input to run over 17Kw, over 30kW peak, into the Inverter for at least 6 minutes.

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Good thing nothing was damaged and you were able to verify the protection mechanisms worked as designed.  So, this mean the inverter can run 17kW for at least 6 minutes?


I ran the initial single stage Inverter at over 8kW for over half an hour without any real issues, so yes, I new the Dual Inverter could run at that power level and for a lot longer than 6 minutes if built correctly, but I was unsure about the BMS's and Low value DC fuses, I use these fuses on each of the four paralleled LiFePO4 banks, these are my fail-safe should one of the BMS's go south or some other life changing event happens to the battery banks paralleled 53V DC supply BUS.


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Edited 2025-03-16 16:10 by KeepIS