Teardown : LEM ULTRASTAB 1ppm 600A current sensor

[TiN]

Fluxgate technology current sensors madness, welcome little impromptu tear-down.
If you have interesting idea of experiments using such a device, feel free to comment!





At worklab I have 210A capable DC load and few 400-500A capable low-voltage power convertors, and 150A Tektronix clamp system, so can do something with some beefy amps.

[gamer388]

Thanks for the teardown and showing us what's inside that current transformer.
I use 4 of these at work with WT1600 Wattmeter from Yokogawa.

I forgot to turn on the power supply for the sensors (+15V and -15V), and now one of my CT is saying about 33 Amp RMS instead of 1A. 
There quite a lot of circuitry inside. I wasn't exepecting that much.