How many ways to reduce the EMF and 3 phace AC nad DC EMF

[Sampath_kumar_Chirut (kamars)]

Dear every one
multirotor is getting dc power supply from the battery and ESC produces 3-phase Ac to the motor so here is how to reduce the dc emf and ac emf by using the shield. copper shield and aluminum shield .

[dkemxr (Dave)]

Typically not needed. Is there a problem you are trying to solve?

[xfacta (Shawn)]

Read through this, a lot of the issues are grounding problems, some is inductance.
Where possible use:

• longer wires between the ESC and Motor
• shorter power wires (twisted) between the ESC and the power distribution

Grounding issues

Good find Mark! ESC grounding issues are made up 3 forms of ESC signalling/coupling problems, resistive, capacitive and inductive. All three should be considered when building an aircraft. Inductive: This is the tendency for sudden changes in current to cause large voltage spikes in your system. Inductance in your power system is primarily caused by the size of the loop formed by the positive and negative leads between the esc and battery. So the longer the cables to the ESC the higher the in…

[Sampath_kumar_Chirut (kamars)]

@dkemxr
actually made a small drone. so mag was placed externally so I reduced a little bit emf. my question is which shield is good for reducing the ac emf and dc emf . for dc emf am using a copper shield for reducing for dc emf which one is good like copper or aluminum?