I'm planning on the use of a current transducer to monitor the current of an induction motor (full load amperage = 2.2A @ 60 Hz). (Link of current transducer, model: LTS 6-NP)

If I connect the input of the transducer to two parallel 20 AWG wire connections (to allow up to 3A to pass), with a wire length of approximately 10 cm., would cross-talk influence the current passing through the wires?

The frequency components of the current being monitored are also of interest, up to 1 kHz.

EDIT: FYI, I have the input / output wires connected in a twisted-pair manner.

  • \$\begingroup\$ the undocumented hole looks most interesting, is that a good place to add extra primary windings, or does it have some other purpose? The data sheet says nothing about the strength of the insulation between the inbuilt primary windings. \$\endgroup\$ – Jasen Oct 10 '17 at 3:09
  • \$\begingroup\$ crosstalk is unlikely to be a problem. \$\endgroup\$ – Jasen Oct 10 '17 at 3:10
  • \$\begingroup\$ I did test a wire through the hole, doing so just results in the nominal sensitivity of 6A / 0.625V; The only way to achieve higher sensitivities (i.e.: 2A / 0.625V) is to run the current through the side pins. I tried both types of configurations (wire through the hole, wire connected to side pins) while running the induction motor at 60 Hz, 3 phase, and got pretty much identical results. To me that undocumented hole is most likely another means to monitor the current data, albeit without the ability to change the signal sensitivity. \$\endgroup\$ – plu Oct 10 '17 at 4:51

Use the formula

Vinduce = [MU0 * MUr * Area / (2 * PI * Distance)] * dT/dT.

Will you have current spikes, where the 60Hz sinusoid does not define the slewrate?

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