I'm considering using diagonal wiring for my 80kW LFP battery bank, which will be discharged at a rate of 0.5C. Should I use T fuses to connect the four inverters to the battery bank if each one already has a circuit breaker? Also, I'd like to clarify if I'm working with a low voltage (48V) or high voltage (~400V) system.
1 Answer
It's crucial to protect your battery from any asymmetrical loads. If one fuse blows, the remaining circuits could take on the extra load, which is risky. You'll also need robust copper busbars and thermal sensors to keep everything cool. Honestly, handling those amps isn't typical DIY stuff; it's way more advanced!
For real! 833A? That's like needing 4x 4/0 wire at max spec, or a copper bar that's 3"x3/8. Just thinking about the cost of copper is wild!