Johan

this thread is awesome! thank you for doing these experiments and sharing the results! it helps reduce the fog of uncertainty around...

Makes sense if there is a loop formed by ground lead of scope probe. dI/dt through wires of circuit under test would induce current in...

@Johan I can't thank you enough for doing the gPV fuse dead-short tests. This is above and beyond my expectations! I did not expect...

Can also use Rogowski coil as current sensor instead of shunt.

Try 50A/50mV shunt. It should give you 10x better signal to noise (10V signal instead of 1V). That -25kA peak could be due to magnetic...

I would use precision current shunt instrumentation op amp fed to an ADC and microcontroller directly mounted to the shunt and powered...

Per request of @Pi Curio, 10 Heschen fuses (sourced on Amazon; HSPV-30; 32A; 1000VDC; I1 = 33kA) were blown while mounted in their...

It really is. I've often theorized that a BMS sees the inverter's initial inrush as the beginning of a dead short thus goes into...

on a dead short the BMS stopped it before the fuse triggered? that's damn impressive

I think the NH00 fuses are also designed to not throw molten metal around. Same principal of an enclosed ceramic fuse surround with...

I have spare class t fuses that are 80 amps I can send for testing if you need fuses

yea. I've seen them blow up too. I guess it depends on what the chip is busy doing. I assume the decision to react is all on the main...

Fuses, breakers, relays are milliseconds. FETs switch at 10 or 100 kHz in power supplies. Maybe a BMS with contactor wouldn't be fast...

I wish I had more time. I have all the equipment to do these tests in my lab (I've done Class T and BS88 in the past for example). As...

So, lemme get this straight, the fuse was given a massive over current and it blew with some firey results. It prevented an arc from...

Would add one more - gPV 10x38 DC 32A Fuse with Din rail 32A fuse holder The post I made was more of a call to the group for action and...

Today two more 22 AWG copper fuse wires were blown, similar to the previous black curve. The 22AWG copper wire fusing current is approx...

Thanks everybody a lot for the input. Feature requests so far: Create current versus time plot, e.g. using an oscilloscope / clamp...

Here's something we use at work a lot. It has the particular advantage that inputs have isolated BNC shell and differential amplifier...

As it sounds like you're planning on repeating this test; a few suggestions for protection. 1. Have a loop of the wire away from the...