A non-invasive trigger sense based on inductive coupling was chosen after the identification of an inexpensive current sense transformer with a split-core to facilitate non-invasive implementation.

The Sonoff doesn’t use the ESP’s ADC pins, so he’s broken one of them out on a lead to a current transformer which captures the power level being consumed by the washing machine. The Sonoff ...

A current transformer (CT) is a simple, practical and inexpensive means of detecting the presence of AC current. Detecting load current rather than applied voltage is a superior method of determining ...

Omicron has introduced a way to test current transformers at all lifecycle stages by using a testing method called "the modeling concept". The "traditional" way of testing a current transformer is to ...

At its heart is a current transformer on the 3-phase stove power line, and we’re treated to a lesson in reading from these devices with an Arduino. They have a shunt resistor across which to ...

The Alternate Current Transformer in Theory and Practice. By J. A. Fleming Vol. I. “The Induction of Electric Currents.” Pp. 479. (London: The Electrician Printing and Publishing Company ...