3000A current clamp table and amplifier

RE: 3000A current clamp table and amplifier

manuelh78 — Wed, 11 Oct 2023 15:39:18 GMT

Very interesting project. Can you share your Eagle cad schematics? Thanks.

RE: 3000A current clamp table and amplifier

genebren — Mon, 08 Apr 2019 20:35:22 GMT

Very nice setup and test. Being able to verify your instruments without the 'real' high currents in place is very nice. I have dealt with currents of this level during the building and commissioning of a 1.2MW power quality systems. The backup power, to be used in the event of a grid drip/brown out came from a superconducting magnet array that could deliver 1500A @ 750V. This first time that we tested it at full load, the supply cables jumped/flexed as the power switched on. Those were some tense seconds when our power inverter stood in for the grid during the 'mock' load.

Well done!

Gene

RE: 3000A current clamp table and amplifier

DAB — Mon, 08 Apr 2019 19:25:32 GMT

Nice project.

DAB

RE: 3000A current clamp table and amplifier

jw0752 — Sun, 07 Apr 2019 21:37:46 GMT

Hi Donald,

I confess that I did not completely follow what the purpose of the table was or how you use it to test the clamps. I am fascinated with your build though. A while back I had to put some extra winds on a toroidal transformer and at first I tried to thread the individual winds but it was too difficult and I found that the bends and twists that I was putting in the wires made them look really bad. I solved this problem by prewinding the wire in a coil like you did on the PVC pipe. I then screwed the helix onto the toroidal transformer. Finally I went down the coil and tightened each wind snugly onto the original winding. It is possible that you could also screw a prewound coil onto the gray plate if the coil diameter was the correct size.

John