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<font face="Times New Roman, Times, serif">Gavin,<br>
<br>
Your graph fits well with Essential Energy's 230V, +10%, -2%
figures, but it also fits the old 240V, ±6% standard. Shuffle the
numbers and get the same results!<br>
<br>
Ray vk2tv<br>
<br>
<br>
<br>
</font>
<div class="moz-cite-prefix">On 18/02/16 09:26, Gavin Rogers wrote:<br>
</div>
<blockquote
cite="mid:427EDFED-E26B-460A-A4A7-93125C03D745@vk6hgr.echidna.id.au"
type="cite">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
For some reason, in Perth the nominal voltage is still 240v. And
while on that topic, here's the APRS telemetry graphing the
voltage at my house :-)<br>
<br>
<a moz-do-not-send="true"
href="http://aprs.fi/telemetry/a/VK6HGR-1">http://aprs.fi/telemetry/a/VK6HGR-1</a><br>
<br>
<br>
<div class="gmail_quote">On 18 February 2016 5:01:59 am AWST,
vk2tv <a class="moz-txt-link-rfc2396E" href="mailto:vk2tv@exemail.com.au"><vk2tv@exemail.com.au></a> wrote:
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;"> <font face="Times New Roman, Times,
serif">Matthew, all,<br>
</font><font face="Times New Roman, Times, serif"><br>
AS60038, was published in Australia on 23rd January 2000 to</font><font
face="Times New Roman, Times, serif"> replace the previous
240V standard. This requires</font><font face="Times New
Roman, Times, serif">, under normal service<br>
conditions, that the</font><font face="Times New Roman,
Times, serif"> voltage at the point of supply should not
differ from the nominal voltage of 230/400V by more than
+10%,-6%. <br>
Voltage drop within a customer's premises may reduce this by
another 5%, the maximum permissible under AS/NZS 3000, known
as the Wiring Rules.<br>
Essential Energy therefore say that the total variation can
be as wide as +10%, -11%. Essential Energy realises that
this voltage range may cause issues with 240V equipment and
they, therefore, have adopted the range of 230V, +10%, -2%,
which aligns very closely with the old 240V standard. When I
was the Supply Irregularity Officer with a County Council
(not Essential Energy) the standard was 240V, ±6%, or
226V-254V. I know that other states had different standards
at the time, and maybe they still do.<br>
<br>
The current Essential Energy "standard" of 230V, +10%, -2%,
is within AS60038 requirements, and returns a voltage range
of 253V-225V. The AS60038 percentages return 253V-216V. <br>
<br>
During my time in the position of SIO the nominal HV supply
was 11,000V, and that tap setting was chosen on distribution
transformers. Under unloaded network conditions the LV would
be at near the top allowable figure of 254V, and network
load would reduce that figure.<br>
<br>
Whilst the "nominal" voltage may be 230V according to
AS60038, in practice, it appears little (nothing?) has
changed since the 240V standard. <br>
<br>
Ray vk2tv<br>
<br>
<br>
<br>
<br>
</font>
<div class="moz-cite-prefix">On 17/02/16 21:30, Malcolm Larkin
wrote:
<pre wrap="">We haven't had 240V AC in Australia since the 23rd of January 2000. The day we dropped to 230V</pre>
</div>
<font face="Times New Roman, Times, serif">It is allowed to be
+5% / -10% (241.5 to 207) Previously when 240, it was ± 10%
so 264 to 216<br>
</font><br>
<br>
<br>
<blockquote
cite="mid:17CB3513-7CD5-4262-87D9-EDA7ED604F4D@icloud.com"
type="cite">
<pre wrap="">
Sent from my iPhone
</pre>
<blockquote type="cite">
<pre wrap="">On 17 Feb 2016, at 18:56, Liz VK2XSE <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:edodd55@gmail.com"><edodd55@gmail.com></a> wrote:
QTR Wed, 17 Feb 2016 09:41:42 +1030 Matthew Cook QTC
</pre>
<blockquote type="cite">
<pre wrap="">It's better your iGate sips and not sucks on the 240VAC regardless
these days o_O
73
Matthew
VK5ZM
</pre>
</blockquote>
<pre wrap="">
Mine is solar powered - radio and the computer setup
The planned one is for a place where the power is provided by my son's
employer at very good rates ;)
-+-+-+-+-+-+-+-+-+-+-+
Liz
VK2XSE
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<pre class="k9mail"><hr>
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--
Gavin Rogers mobile
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