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Topic Title: Shaver socket output Voltage
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Created On: 26 August 2013 06:20 PM
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 26 August 2013 06:20 PM
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antric2

Posts: 1067
Joined: 20 October 2006

Evening,
Very rare that I fit shaver sockets but is it usual to have an output of 262\125 on a 240\115 rated unit."42vac measured on the rear supply of the socket.
I have used a digital multi meter and wonder if the meter is affected because it is a no load measurement and it being a seperated supply.
Regards
Antric
 26 August 2013 06:48 PM
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perspicacious

Posts: 7239
Joined: 18 April 2006

"I have used a digital multi meter and wonder if the meter is affected because it is a no load measurement and it being a seperated supply."

It shoudn't be antric, but voltage regulation with a low VA Tx is generally poor. Have a look at the typical figures from say RS for Tx of 20 VA or apply a 20 VA load on your unit (assuming that it is rated at 20 VA or more!) and re-measure.

Regards

BOD
 26 August 2013 06:51 PM
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broadgage

Posts: 1306
Joined: 07 August 2007

Yes, the voltage measured is very typical.
Off load the voltage of these very small transformers does rise a fair bit.
If you repeat the test but with the transformer loaded with a 15 watt lamp, then the voltage should be roughly 230/240.
 26 August 2013 07:03 PM
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antric2

Posts: 1067
Joined: 20 October 2006

Thank you for quick responses.This being one of the lower quality shavers sockets will most probably mean the volt regulation wont be the best.
I will check up what you have mentioned.

Regards
Antric
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