mailing list archives
Re: 220v/50hz power rig
From: Lincoln Dale <ltd () interlink com au>
Date: Thu, 06 Sep 2001 03:34:56 -0700
[straying well from the topic here, but ...]
At 07:40 PM 6/09/2001 +1000, David Luyer wrote:
(Australia is 240V 50Hz on the east coast, and I think it's still
250V 50Hz on the west coast, it used to be 260V and in some sites
[eg, BankWest tower upper floors on weekends, ie, where the microwave
gear for the academic network is located] I've seen up to 270V.)
the tolerance is typically +/- 10%, so it isn't uncommon to see anything
between 216-264V and HZ +/- 1%.
the +/- range on voltage is also what makes it 'easier' for power-supply
makers (at least if the design isn't dependent on HZ).
this is why you typically see multi-range power-supplies state "115V or 230V".
HZ moving around causes far more problems -- makes peoples clocks go slow
and fast. for that reason, HZ is very tightly regulated - if it goes over
for a period, they'll make it go under to even it out.
NB. that is simply WA power and the fact that it is somewhat hard to
regulate supply to demand when you've got an isolated grid.
Re: 220v/50hz power rig Lincoln Dale (Sep 06)
Re: 220v/50hz power rig David Lesher (Sep 06)