Voltage Reduction Test February 7 (Ontario only)

[Alejandro Imass]

On Tue, Jan 31, 2012 at 11:20 AM, Ted <ted.leslie-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
> since all the stuff we use also works in USA, where they are 110? and we are
> 120-125?
> There should never be chance of an issue?
>

Actually both US and Canada are standardized at 120V _nominal_ voltage
on a single phase to neutral. 120V nominal phase to neutral is
anywhere between 114 and 126V. Nominal AC Voltage is actually the
rated mean square of the actual 60Hz sine waveform which has a peak to
peak nominal voltage of about 170V so it's RMS is _about_ 120 V.

-- 
Alejandro Imass

> -tl
>
>
> On 01/31/2012 11:15 AM, Walter Dnes wrote:
>>
>>   This only applies to Ontario.  From
>> http://www.ieso.ca/imoweb/news/newsItem.asp?newsItemID=5933
>>
>>> The IESO will perform a voltage reduction test on Tuesday,
>>> February 7, 2012. Voltage reductions are tested every 18 months
>>> to simulate emergency actions available to the IESO to maintain
>>> system reliability.  There will be a three percent voltage reduction
>>> test between 9:00 and 10:00 EST, followed by a five percent test
>>> between 13:00 and 14:00 EST.  The IESO will measure the electricity
>>> load reduction resulting from these voltage changes. The results
>>> of these tests will be used to analyze and update our emergency
>>> preparedness procedures.  Electricity consumers should be unaffected
>>> as voltages will remain within industry standards specified for
>>> equipment used by residential and commercial consumers. Consumers
>>> with questions or concerns about the test should contact their
>>> local distribution company. A list of local distribution companies
>>> is available at http://www.ieso.ca/findutility.  More information
>>> about voltage reductions is available on the IESO website at
>>> http://www.ieso.ca/voltagereduction or by contacting IESO Customer
>>> Relations.
>>
>>   We get to find out how good our power supplies and UPS systems are.
>>
>
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