balanced power


Hi, could anyone explain to me in short what balanced power means? This is a term that is applied to isolation transformers. I'm using isolation transformers too (I live btw in The Netherlands) but I'm not using ground. Is that what "balanced" means: using a ground? What are the benefits and drawback of balanced power? Thank you in advance.

Chris
dazzdax

Showing 3 responses by sugarbrie

In a normal unbalanced power line you have a hot conductor(120V to ground), a neutral conductor(0V to ground) and the ground. This unbalanced configuration permits low level noise contamination to pass through the power line directly to your sensitive audio components.

In balanced power the 120V to ground is converted to two 60V to ground. These 60V signals are 180 degrees out of phase with one another. You still have 120V, 60hz available at the outlet receptacles but the noise has been canceled out by common mode rejection.

I do not know of any drawbacks over unbalanced power. There are many good units out there to choose from.

The above explanation is from the Blue Circle Music Ring Conditioner web page. BC does make international versions in other voltages that incorporate a power bar with the outlets of your choice. For full disclosure, I am affiliated with BC.
Just an FYI... Blue Circle will custom make a balanced Music Ring to step-up or step-down voltages with the required plugs, etc.

I assume others companies will also ??? If you are a PS Audio fan, you could check with Paul McGowan.
It has everything to do with AC power. The voltage does not matter.

I cannot speak for your country, but in the USA the two poles on the AC electric plug will be either 120V or Zero. Balanced power as I stated before is 60 & 60 180 degrees out of phase; or to put it another way +60 and -60 volts, the difference between the poles is the same 120V which feeds your gear. The noise is canceled out because the 2 poles are exactly 180 degrees out of phase with each other.

So the power in your wall (if it is unbalanced) is 240V and Zero between the 2 poles. Balanced would in essence be +120 and -120 between the 2 poles. Still 240 Volts.

A step-up or step-down balanced devise is just regenerating balanced power at whatever the output voltage is.