WE HAVE A WORKING INDUCTION FURNACE !What a day

I started by making a bracket to hold the generator exhaust pipe central in the hole in the Yorkshire Boarding to try and avoid fires.
Then, as the new roll of 1" PVC reinforced pipe had been delivered yesterday set to reworking the hoses that run from the new chiller to the furnace driver box. All fairly straight forward, jubilee clips onto hose barbs, though I have double clipped all ends just in case.
At this point I was able to connect the chiller to the furnace driver which was already connected to the furnace body (where the crucible is) and test for leaks.
All was well except for a slight drip from one of the 1-1/2" unions that the driver unit uses. This was eventually cured once I'd found an ancient tin of Boss White that was still workable, the first one being solid !
So now dare I try powering up?
Cables run out - by heck they are HEAVY! Generator started, furnace driver switched on and it immediately tripped it's main breaker - not good, but knowing that it had been OK on genuine mains 3 phase at low power it pointed to a generator or cable fault.
Measuring the input to the Furnace driver voltages were all over the place - 250 (ish) between two phases 415 or so between others. At the generator end all was well with the correct 415 between phases.
It MUST be the cables, but I'd buzzed them through for continuity when I dug them out recently and they were OK. Very odd

Major engineering feat opening up cable ends (plugs / sockets) and to my absolute HORROR found Live 1 and Earth interchanged on one of the sockets. I'd hunted for the core to test with a meter probe but not paid attention to what connected to what. Now I know for certain that this cable (these cables) had been working fine before I moved from Bromley, so how the heck had two wires changed place in the mean time.
Then it dawned on me. Shortly after we arrived here EDF wanted to recable their overhead wires into 'bunched cables' and I'd had my previous Agrekko generator running for a couple of days while they were on site. A week later they'd rung me up and begged the loan of the generator as it was towable, to keep a local village powered up as a care home couldn't be without power. I remember saying that I had the heavy cables but no socket for the other end for them to use, and getting the reply 'No problem we'll remove the cable end and put it back afterwards.
99% certain that the EDF contractor had interchanged those two wires - hideously dangerous

OK now we have proper 415 volt three phase

Does the furnace driver work - no

I got the same error that I had had a few weeks back that the water flow wasn't being detected. OK link the error out and press on. Unit goes 'Pret' (ready) and pings the furnace body determining it's resonant frequency.
A length of 1/2" steel black bar in the crucible and try proper heat. Now I daren't actually melt anything yet as I have no compressed air to invert the furnace and dump the melt out, so lowish power test.
Good signs - smoke off the residual oils on the bar as it heated then a nice dull red glow - I wound the power up to 20 kW just to get it a bit brighter and decided that it was probably as well to quit while I was ahead.
The temperatures on the water chiller all looked sensible but in my excitement I failed to take pictures.
. . . in all a good day and a big relief - now for . .
