| Electronics > Beginners |
| 1500A Current Transducer Test Rig - Suggestions |
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| Zero999:
--- Quote from: japasetelagoas on July 19, 2018, 01:09:07 pm --- --- Quote from: Fletchez on July 19, 2018, 07:56:07 am ---The most important thing for knowledge in this forum. --- End quote --- Didn't quite get your point. --- End quote --- That might be a bot/spammer. Their other post is similar. Quite often spammers make harmless but pointless posts, to increase their count, before they spam. Just ignore it and I'll report it to the moderator. |
| Ian.M:
For low voltage KA range DC, it may be worth looking at homopolar generators. You only need enough voltage to drive the required current through the resistance of the test conductor, its connections, and a 2000A current shunt, so the total power can be fairly low and the apparatus reasonably compact. Vary the output by varying the speed. Probably the biggest problem is getting the test conductor loop far enough from the stray field of the generator |
| schmitt trigger:
If I understand correctly from the first post, and please correct me if I'm wrong: You test a 1500 amp current transducer by wrapping several turns? Well, let me tell you that this is the cheapest and most useful trick. For instance, if you wrap just three turns, then the load current will be only 500 amps. Still a very large current but far more manageable. You can fit as many turns as they will fit in the window area, and reduce the load current accordingly. |
| japasetelagoas:
--- Quote from: schmitt trigger on July 19, 2018, 01:44:53 pm ---If I understand correctly from the first post, and please correct me if I'm wrong: You test a 1500 amp current transducer by wrapping several turns? Well, let me tell you that this is the cheapest and most useful trick. For instance, if you wrap just three turns, then the load current will be only 500 amps. Still a very large current but far more manageable. You can fit as many turns as they will fit in the window area, and reduce the load current accordingly. --- End quote --- Exactly, I think I'll stick with this idea. I'll just make it more organized, having individual coils for each of the current transducers. Now that I've seen all the replies here, actually running 1500A through the device is probably going to be a hassle to design, not to mention the safety concern that some of the people here are going to bring up. Thanks. |
| tszaboo:
Lead acid car batteries. If you buy the ones, which have 6x series cell in it, disassemble it, and you get 2V "infinite amps for a short time" voltage source. Or buy a bunch of loose cells, with bolt attachment. Yes, it is dangerous, especially, that it can weld itself into a short circuit, or heat up a wrench to red. |
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