Methods to reduce the effect of Inductive Coupling Between Cable and Ground Loop
- Decrease the cable height (h) and length.
- Whenever possible place the cable near the metal surface.
- Use twisted cables.
- On high frequencies ground the shield at two points (be careful) and on low frequencies at a single point.
Does twisting wires reduce inductance?
With twisted pair wiring cables, the inductance is simply minimized because the magnetic field cancelation is NOT PERFECT. ... Stated another way, the magnetic fields are offset from one another by the physical spacing between the wires needed to allow space for wire insulation.
What causes high inductance?
The inductance of a coil can be increased by placing a magnetic core of ferromagnetic material in the hole in the center. The magnetic field of the coil magnetizes the material of the core, aligning its magnetic domains, and the magnetic field of the core adds to that of the coil, increasing the flux through the coil.
