T
treez
Guest
Hello
We tried to measure the inductance of a 1 metre length of three core mains cable (L,N,E).
We did this by soldering a 2.2uF film capacitor to live and neutral at one end. –Also attaching a scope probe to this capacitor. Then we touched live and neutral at the other end across a 10V power supply.
We determined the inductance from the frequency of the subsequent ringing..
The frequency of the ringing was 111kHz.
This means an inductance of 933nH.
We are amazed because this seems so high. Can this be right?
We tried to measure the inductance of a 1 metre length of three core mains cable (L,N,E).
We did this by soldering a 2.2uF film capacitor to live and neutral at one end. –Also attaching a scope probe to this capacitor. Then we touched live and neutral at the other end across a 10V power supply.
We determined the inductance from the frequency of the subsequent ringing..
The frequency of the ringing was 111kHz.
This means an inductance of 933nH.
We are amazed because this seems so high. Can this be right?