Where to get small current transducers .. ?
Franklin
Posts: 4,747
I'm looking for something like this ·but have not found anything this small searching. Anyone know where I could get some or even what I should be searching for other that current transducer/transformer. Thanks.
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- Stephen
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- Stephen
Comments
I asked a similar question a couple weeks ago in the Sandbox thread (http://forums.parallax.com/showthread.php?p=795321. I did some looking around and I found a company in China that I will be placing an order with to sell the items through Brilldea. I won't be stocking items until the end of May I think, when I return from travel. Current Transformers seems to be a hot topic of several people's mind, so I am getting some for a system I am building and hopefully in time be able to help others like you by supplying them through my site.
I will probably get a 15 amp or 20 amp version as well as something higher like 75 amp or 100 amp.
p.s. The ones I found are like the ones you pictures, but a different color.
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Timothy D. Swieter, E.I.
www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, 3.0" LCD Composite video display, eProto for SunSPOT
www.tdswieter.com
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- Stephen
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Timothy D. Swieter, E.I.
www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, 3.0" LCD Composite video display, eProto for SunSPOT
www.tdswieter.com
Post Edited (yarisboy) : 7/13/2009 2:55:52 AM GMT
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Timothy D. Swieter, E.I.
www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, 3.0" LCD Composite video display, eProto for SunSPOT
www.tdswieter.com
The data sheet is in the thread link above ( I tried attaching it here and I am getting errors). The clamps are blue colored plastic with a gray cable. I have stock of the 20A, 60A and 100A version. I don't have a website yet for the device, so you will have to send a PM to me with your e-mail address so I can forward a PayPal invoice. Each device is US$11.95. There is a flat rate of US$4.00 per order for shipping. The orders ship from Singapore via first class mail. We can ship the items faster if you want, but it is more costly.
There hasn't been much time for me to try out the devices, so I can't offer many tips on usage - although as you can see in other threads there is plenty of help here.
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Timothy D. Swieter, E.I.
www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, 3.0" LCD Composite video display, eProto for SunSPOT
www.tdswieter.com
this reminds me that I hadn't contacted you, Timothy, about these as I had mentioned in the other thread... just want to follow up. Franklin, this probably won't be of much help, but it's related enough that I thought to mention it.
Though I've need for a couple of the 20's and may be two of the 100's also, I'm interested in better understanding power calcs using CT's. Parallax recently posted Beau Schwabe's COIL_demo.spin as the 'obex object of the week'. The code is actually distributed in the prop tool library. The demo is a nice learning tool for coils. Got me thinking and goofying around with homebrew CT coils, an op-amp, and a hack version of the coil demo prog.
Once (if [noparse]:)[/noparse] I get it to work, I'll post the results. Sure, it would be more time-effective to purchase the CT coils, but the overwhelming DYI motive is usually illogical [noparse]:)[/noparse])
cheers,
Howard
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