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[email protected] tom.harrigan@gmail.com is offline
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Default Measuring power consumption of immersion heater?

On 6 Oct, 18:04, "dennis@home" wrote:
wrote in message

ups.com...



On 5 Oct, 23:51, Rumble wrote:
wrote:


snip


When you measure the power factor, are you measuring it for the
device
in question, or are you measuring the average for the neighbourhood?
A plug-in device can only measure it for the load running through it.


Are you suggesting it somehow compensates for the power factor of the
supply automatically?


T


Is this a trick question? The supply doesn't have a power factor; only
the load has a power factor.


It wasn't supposed to be a trick question. The supply has a power
factor by definition. The question is whether it equals unity or not.
Are you implying that a domestic supply is guaranteed to have a power
factor of 1?


They are charging me per kwHr so they had better have the correct power
factor.


If they are charging per kWh, power factor is irrelevant.

T