[SOLVED] Coil whine from PSU when landlord is charging their car

AxelMagnus

Honorable
Oct 28, 2013
35
1
10,535
When my landlord is charging their Renault Zoe, my brand new Corsair RM550x starts whining in a high frequency. I rent the basement of their house. I have my own set of breakers, so it's not on the same circuit, but it seems to disturb the power in the house enough to create whine in my PSU.

Is there anything I can do about this? Would the result be different with a different PSU?
 
Solution
When my landlord is charging their Renault Zoe, my brand new Corsair RM550x starts whining in a high frequency. I rent the basement of their house. I have my own set of breakers, so it's not on the same circuit, but it seems to disturb the power in the house enough to create whine in my PSU.

It's called a ground loop. Even if you have your own breakers, you still share his ground at the panel.

Is there anything I can do about this? Would the result be different with a different PSU?

The noise is in the line. All you can do is eliminate the noise itself.

You might be able to clean up the mains with a power conditioner with EMi/RFI attenuation.

I can't make any specific suggestions because every country is different...
When my landlord is charging their Renault Zoe, my brand new Corsair RM550x starts whining in a high frequency. I rent the basement of their house. I have my own set of breakers, so it's not on the same circuit, but it seems to disturb the power in the house enough to create whine in my PSU.

It's called a ground loop. Even if you have your own breakers, you still share his ground at the panel.

Is there anything I can do about this? Would the result be different with a different PSU?

The noise is in the line. All you can do is eliminate the noise itself.

You might be able to clean up the mains with a power conditioner with EMi/RFI attenuation.

I can't make any specific suggestions because every country is different because we have different plugs. But in the US I would suggest something like a Furman or Isobar.
 
Solution
It's called a ground loop. Even if you have your own breakers, you still share his ground at the panel.

The noise is in the line. All you can do is eliminate the noise itself.

You might be able to clean up the mains with a power conditioner with EMi/RFI attenuation.

I can't make any specific suggestions because every country is different because we have different plugs. But in the US I would suggest something like a Furman or Isobar.

Thanks! I probably won't be doing anything about it, since it seems complicated and he doesn't charge his car all the time. But thank you for clearing it up so I understand what the issue is and what I would need to do to do something about it.