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Raffinator

Too much voltage - is this a big deal?

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21 minutes ago, Raffinator said:

Question to the many knowledgeable SNA folk.
 
Is this a real issue or a beat up?
 
https://www.abc.net.au/7.30/power-bills-up-appliances-burning-out-you-may-have/10479756

Yes

Go to this thread where there are comments.

https://www.stereo.net.au/forums/topic/255340-does-audiophile-power-cord-power-conditioner-or-isolation-transformer-make-a-difference/?page=15

 

John

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On 09/11/2018 at 6:43 AM, Raffinator said:

Is this a real issue or a beat up?
 

At higher mains voltages...

 

Certainly the old style of lightbulb, the incandescent bulb, can burn out faster when operated from a high voltage. It will also burn brighter and consume more power.

 

Electric water heaters will heat a little faster before their thermostat shuts them off. (No change to be expected for total consumption.)

 

Your electric jug will boil your water a bit faster.  (No change to be expected for total consumption.)

 

Your electric cooking hotplates will heat up a bit faster before the thermostat shuts them off.  (No change to be expected for total consumption.)

 

Your electric oven will come up to temperature a little faster.  (No change to be expected for total consumption.)

 

Modern electronic appliances that use a regulated DC supply such as TV sets, desk top computers, and audio amplifiers, might draw a little more power (or in some cases the same amount of power).

 

Older electronic appliances lacking power supply regulation, such as old valve radios, would draw more power.

 

Modern airconditioners that use inverter technology probably wouldn't draw significantly more power to keep a room at a set temperature.

 

Older airconditioners might draw more power to keep a room at a set temperature. (This would need to be looked at on a case by case basis, e.g. some compressor motors might draw excessive current if operated too far above the nominal voltage they are designed for.)

 

_______

 

People have reported problems with modern solar panel inverters shutting down completely, or throttling back their output, if and when the neighbourhood mains voltage gets too high. With more people installing solar panels, this could become a significant concern.

 

Edited by MLXXX

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